Trevor Story

SS Boston Red Sox
Age 34 R/R 6'1" / 209 lbs MLB HR -5%K -4% Svc 11.000 · Ctrl thru 2026
Overview
MLB40-MANFA 2027
YearAgeLvl / TeamPAAVG/OBP/SLGHRSBwRC+WARMLE AVG/OBP/SLG
202431MLBBOS106.255/.340/.39426950.5
202532MLBBOS654.263/.308/.43325311032.6
202633AAABOS37.171/.194/.20000-18—.143/.167/.171
202633MLBBOS266.235/.273/.3515566-0.1
2027PROJ34MLBBOS256.242/.284/.38278810.1
2028PROJ35MLBBOS197.231/.271/.3595471-0.7
Last 3 seasons WAR 3.0  ·  Next 2 projected WAR -0.6Projected rows: MLB playing time only, park and league context applied.
ContractCONFIRMED
Control thru2026Service11.000First FA2027Options1
Skills · percentileStatcast 2024-2026
Avg EV59
Speed58
Barrel%51
Bat Spd48
xwOBA34
Form.231/.268/.373 · rolling true talent (60d window) · proj .235/.275/.372
CompsMark Little (age 34) · Kristopher Negrón (age 33) · Hernán Pérez (age 33)
2027 FULL-SEASON PROJECTIONstats below = full-season projection
showingPROJ
wRC+†vL 8281vR 75
AVG/OBP/SLG.242 / .284 / .382
PA256
HR7
SB8
K%29
BB%5
BABIP316
ISO138
MLB%100%
Value2027 · WAR
BAT: -5.9 runs (wOBA-derived runs vs avg)-6BATRUN: +1.4 runs (SB/CS + UBR baserunning)+1RUNFLD: -2.2 runs (Defensive runs vs avg)-2FLDPOS: +2.7 runs (Positional adjustment)+3POSREP: +5.5 runs (Replacement-level credit)+6REPTotal WAR: +0.10+0.1WAR
trajectory · projected WAR by year
0.1-0.72728
Tools · Recent Form · Splits · Contract
ToolsStatcast %ile · 2024-2026
CONTACT
xAVG
280.233
POWER
Barrel%
518.3
Avg EV
5989.7
Bat Spd
4871.2
SPEED
Sprint
5827.8
Recent Formrolling true talent ⓘ
K%31%▼▼32% over 90 PA (60d) · proj 29%
BB%4%▼3% over 90 PA (60d) · proj 5%
ISO.142·.151 over 86 AB (60d) · proj .137
HR/BB4.1%·3.5% over 57 BBE (60d) · proj 4.4%
BABIP.312▲.418 over 55 BIP (60d) · proj .305
SLASH.231/.268/.373·proj .235/.275/.372
Platoon Splits2024-2026 · 879 PA
vs LHP
vs RHP
Edge
PA
223
656
—
wRC+
87
101
▶R
wOBA
297
317
▶R
ISO
149
159
▶R
BABIP
310
333
▶R
K%
27.8%
28.0%
—
BB%
4.9%
5.5%
▶R
Contract CONFIRMED · hand-curated extension
Status   FA
MLB Debut   2016
Service   11.000 yrs.days
Team Control Through   2026
First FA Year   2027
OPT
YearStatusSalary Proj WAR Value Surplus
Totals $0.0M $0.0M +$0.0M
Options · projected decision
2027PLAYER OPT$25.0M / $5.0M buyoutEXERCISE

Career Stats + Projections

Real MLB stats plus park-adjusted projections — this season (so far / rest / full), then future seasons and career totals.
basis chips: RAW = as recorded · CTX = with park/league context · A+C = actual + context combined · MLE = level/park-neutral
Methodology▸ how these numbers are built

All seasons translated to park-neutral MLB-equivalent (MLE) and combined per year. 2027 = full-season projection (no games played yet). 2028+ via Advanced Marcel + aging curve.

YearAge LvlTeam MLB% PAAB H2B3BHR BBSOHBP SBCS AVGOBPSLGOPS ISOBABIP K%BB% wOBAwRC+ BATRUNFLDPOSREP WAR
▸ Career — actual stats, one row per stint (as recorded, no adjustments)
201118 ROKCasper Ghosts — 210179 48826 26412 131 268367436803 168313 2012 355 57 — — — — — —
201219 AAsheville Tourists — 548477 13243618 601219 153 277368505873 229335 2211 383 73 — — — — — —
201320 A+Modesto Nuts — 554497 11634512 451837 221 233306394700 161343 338 311 39 — — — — — —
201421 AATulsa Drillers — 237205 41819 28822 31 200302380683 180281 3512 306 48 — — — — — —
201421 A+Modesto Nuts — 218184 611775 31593 204 3324365821.017 250467 2714 442 99 — — — — — —
201421 INTLSalt River Rafters — 9786 22911 11260 31 256340419759 163356 2711 339 116 — — — — — —
201522 AAAAlbuquerque Isotopes — 275256 7120410 16682 71 277325504829 227341 256 360 61 — — — — — —
201522 AANew Britain Rock Cats — 301256 7320610 36735 152 285384527911 242356 2412 394 102 — — — — — —
201623 MLBColorado Rockies — 415372 10121427 351305 85 272342567909 296343 318 390 132 +16 -0 +6 +4 +9 3.6
201724 MLBColorado Rockies — 555503 12032324 491912 72 239309457766 219332 349 336 99 -1 +1 +9 +6 +12 2.7
201825 MLBColorado Rockies — 656598 17442637 471687 276 291350567917 276345 267 395 136 +28 +3 -2 +7 +14 5.1
201926 MLBColorado Rockies — 656588 17338535 581747 238 294364554919 260361 279 398 141 +32 +1 +17 +7 +14 7.3
202027 MLBColorado Rockies — 259235 6813411 24630 153 289355519874 230354 249 382 128 +9 +2 +1 +3 +6 2.1
202128 MLBColorado Rockies — 595526 13234524 5313911 206 251332471804 221293 239 352 110 +7 +2 -1 +6 +13 2.7
202229 MLBBoston Red Sox — 396357 8522016 321223 130 238306434740 196309 318 325 96 -2 +3 +8 +1 +9 1.9
202330 MLBBoston Red Sox — 168158 32903 9551 103 203250316566 114290 335 255 53 -9 +1 +7 +2 +4 0.4
202330 AAAWorcester Red Sox — 3832 10403 581 10 3124217191.140 406333 2113 482 109 — — — — — —
202431 MLBBoston Red Sox — 10694 24702 11331 63 255340394733 138373 3110 331 95 -1 +0 +2 +1 +2 0.5
202431 AAAWorcester Red Sox — 1616 6100 020 10 375375438812 62429 120 363 83 — — — — — —
202532 MLBBoston Red Sox — 654612 16129025 331767 311 263308433741 170330 275 328 103 +2 +6 -4 +7 +14 2.6
202633 MLBBoston Red Sox — 266251 591405 11862 50 235273351623 116333 324 277 66 -11 +1 -1 +3 +6 -0.1
202633 AAAWorcester Red Sox — 3735 6100 1110 00 171194200394 29240 303 176 -18 — — — — — —
▸ Career Totals (raw MLB only — historical actual)
MLB Career— — 47264294 112926127209 362133746 16537 263327482809 219332 288 354 126 +144 +18 +44 +49 +102 36.4
▸ Career — adjusted (every ACTUAL line translated to park/league-neutral MLB equivalents)
201118 ROK MLECasper Ghosts — 210189 37614 16592 131 196266302567 106249 288 253 57 — — — — — —
201219 A MLEAsheville Tourists — 548498 10430512 391729 153 209278361640 153287 317 276 73 — — — — — —
201320 A+ MLEModesto Nuts — 554510 8722312 322477 221 171230296526 125287 456 226 39 — — — — — —
201421 AA MLETulsa Drillers — 237213 35618 201002 31 164243315557 150246 428 239 48 — — — — — —
201421 A+ MLEModesto Nuts — 218192 441144 23813 204 229321391712 161375 3711 314 99 — — — — — —
201522 AAA MLEAlbuquerque Isotopes — 275262 541437 10912 71 206241363603 156283 334 259 61 — — — — — —
201522 AA MLENew Britain Rock Cats — 301266 621667 26925 152 233313417730 184316 319 319 102 — — — — — —
201623 MLB MLEColorado Rockies — 415374 9420324 331305 85 251320513834 262343 318 363 132 +16 -0 +6 +4 +9 3.6
201724 MLB MLEColorado Rockies — 555507 11331221 451912 72 223289416705 193332 348 314 99 -1 +1 +9 +6 +12 2.7
201825 MLB MLEColorado Rockies — 656601 16441433 441687 276 273330519849 246345 267 369 136 +28 +3 -2 +7 +14 5.1
201926 MLB MLEColorado Rockies — 656588 16337331 581747 238 277349509858 231361 279 377 141 +32 +1 +17 +7 +14 7.3
202027 MLB MLEColorado Rockies — 259236 6513310 23630 153 275340483823 208354 249 357 128 +9 +2 +1 +3 +6 2.1
202128 MLB MLEColorado Rockies — 595528 12433321 5113911 206 235315428743 193293 239 331 110 +7 +2 -1 +6 +13 2.7
202229 MLB MLEBoston Red Sox — 396361 8220016 281223 130 227288416704 188309 317 310 96 -2 +3 +8 +1 +9 1.9
202330 MLB MLEBoston Red Sox — 168158 31803 9551 103 196244304548 108290 335 247 53 -9 +1 +7 +2 +4 0.4
202330 AAA MLEWorcester Red Sox — 3834 7202 391 10 206289441731 235233 248 330 109 — — — — — —
202431 MLB MLEBoston Red Sox — 10696 23602 9331 63 240311365676 125373 318 308 95 -1 +0 +2 +1 +2 0.5
202431 AAA MLEWorcester Red Sox — 1616 5100 020 10 312312375688 62365 120 291 83 — — — — — —
202532 MLB MLEBoston Red Sox — 654613 15726026 321767 311 256301426726 170330 275 320 103 +2 +6 -4 +7 +14 2.6
202633 MLB MLEBoston Red Sox — 266252 561205 10862 50 222258329587 107333 324 266 66 -11 +1 -1 +3 +6 -0.1
202633 AAA MLEWorcester Red Sox — 3735 5100 1130 00 143167171338 29206 353 142 -18 — — — — — —
201118 ROK MLECasper Ghosts — 210189 37614 16592 131 196266302567 106258 288 253 57 — — — — — —
201118 ROK RAWCasper Ghosts — 210179 48826 26412 131 268367436803 168313 2012 355 57 — — — — — —
201219 A MLEAsheville Tourists — 548498 10430512 391729 153 209278361640 153291 317 276 73 — — — — — —
201219 A RAWAsheville Tourists — 548477 13243618 601219 153 277368505873 229335 2211 383 73 — — — — — —
201320 A+ MLEModesto Nuts — 554510 8722312 322477 221 171230296526 125298 456 226 39 — — — — — —
201320 A+ RAWModesto Nuts — 554497 11634512 451837 221 233306394700 161343 338 311 39 — — — — — —
201421 AA MLE3 teams — 552494 9621615 512205 266 194276352629 158313 409 275 72 — — — — — —
201421 AA RAW3 teams — 552475 12434915 701675 266 261362465827 204372 3013 365 72 — — — — — —
201522 AA MLE2 teams — 576527 11630914 371837 223 220280391671 171304 326 290 83 — — — — — —
201522 AA RAW2 teams — 576512 144401020 521417 223 281356516871 234348 249 378 83 — — — — — —
201623 MLB MLEColorado Rockies — 415374 9420324 331305 85 251320513834 262317 318 363 132 +16 -0 +6 +4 +9 3.6
201623 MLB RAWColorado Rockies — 415372 10121427 351305 85 272342567909 296343 318 390 132 +16 -0 +6 +4 +9 3.6
201724 MLB MLEColorado Rockies — 555507 11331221 451912 72 223289416705 193311 348 314 99 -1 +1 +9 +6 +12 2.7
201724 MLB RAWColorado Rockies — 555503 12032324 491912 72 239309457766 219332 349 336 99 -1 +1 +9 +6 +12 2.7
201825 MLB MLEColorado Rockies — 656601 16441433 441687 276 273330519849 246324 267 369 136 +28 +3 -2 +7 +14 5.1
201825 MLB RAWColorado Rockies — 656598 17442637 471687 276 291350567917 276345 267 395 136 +28 +3 -2 +7 +14 5.1
201926 MLB MLEColorado Rockies — 656588 16337331 581747 238 277349509858 231342 279 377 141 +32 +1 +17 +7 +14 7.3
201926 MLB RAWColorado Rockies — 656588 17338535 581747 238 294364554919 260361 279 398 141 +32 +1 +17 +7 +14 7.3
202027 MLB MLEColorado Rockies — 259236 6513310 23630 153 275340483823 208337 249 357 128 +9 +2 +1 +3 +6 2.1
202027 MLB RAWColorado Rockies — 259235 6813411 24630 153 289355519874 230354 249 382 128 +9 +2 +1 +3 +6 2.1
202128 MLB MLEColorado Rockies — 595528 12433321 5113911 206 235315428743 193276 239 331 110 +7 +2 -1 +6 +13 2.7
202128 MLB RAWColorado Rockies — 595526 13234524 5313911 206 251332471804 221293 239 352 110 +7 +2 -1 +6 +13 2.7
202229 MLB MLEBoston Red Sox — 396361 8220016 281223 130 227288416704 188291 317 310 96 -2 +3 +8 +1 +9 1.9
202229 MLB RAWBoston Red Sox — 396357 8522016 321223 130 238306434740 196309 318 325 96 -2 +3 +8 +1 +9 1.9
202330 MLB MLE2 teams — 206192 371005 12642 113 193248323570 130260 316 262 64 -9 +1 +7 +2 +4 0.6
202330 MLB RAW2 teams — 206190 421306 14632 113 221282384666 163298 317 297 64 -9 +1 +7 +2 +4 0.6
202431 MLB MLE2 teams — 122112 28702 9351 73 250311366678 116347 297 306 93 -1 +0 +2 +1 +3 0.5
202431 MLB RAW2 teams — 122110 30802 11351 73 273344400744 127384 299 336 93 -1 +0 +2 +1 +3 0.5
202532 MLB MLEBoston Red Sox — 654613 15726026 321767 311 256301426726 170318 275 320 103 +2 +6 -4 +7 +14 2.6
202532 MLB RAWBoston Red Sox — 654612 16129025 331767 311 263308433741 170330 275 328 103 +2 +6 -4 +7 +14 2.6
202633 MLB MLE2 teams — 303287 621305 11992 50 216250314564 98306 334 251 56 -16 +1 -1 +3 +7 -0.6
202633 MLB RAW2 teams — 303286 651505 12972 50 227263332596 105321 324 265 56 -16 +1 -1 +3 +7 -0.6
201118 ROK MLECasper Ghosts — 210190 37614 16592 131 195266300566 105249 288 253 57 — — — — — —
201219 A MLEAsheville Tourists — 548495 10430512 391729 153 210278364642 154287 317 276 73 — — — — — —
201320 A+ MLEModesto Nuts — 554510 8722312 322477 221 171230296526 125287 456 226 39 — — — — — —
201421 AA MLE3 teams — 552491 9621615 512205 266 196276354631 159308 409 275 72 — — — — — —
201522 AA MLE2 teams — 576527 11630914 371837 223 220280391671 171300 326 290 83 — — — — — —
201623 MLB MLEColorado Rockies — 415374 9420324 331305 85 251320513834 262343 318 363 132 — — — — — —
201724 MLB MLEColorado Rockies — 555503 11331221 451912 72 225289419708 195332 348 314 99 — — — — — —
201825 MLB MLEColorado Rockies — 656600 16441433 441687 276 273330520850 247345 267 369 136 — — — — — —
201926 MLB MLEColorado Rockies — 656586 16337331 581747 238 278349510859 232361 279 377 141 — — — — — —
202027 MLB MLEColorado Rockies — 259234 6513310 23630 153 278340487827 209354 249 357 128 — — — — — —
202128 MLB MLEColorado Rockies — 595528 12433321 5113911 206 235315428743 193293 239 331 110 — — — — — —
202229 MLB MLEBoston Red Sox — 396362 8220016 281223 130 227288414703 188309 317 310 96 — — — — — —
202330 MLB MLE2 teams — 206190 371005 12642 113 195248326574 132279 316 262 64 — — — — — —
202431 MLB MLE2 teams — 122111 28702 9351 73 252311369681 117372 297 306 93 — — — — — —
202532 MLB MLEBoston Red Sox — 654610 15726026 321767 311 257301428728 170330 275 320 103 — — — — — —
202633 MLB MLE2 teams — 303287 621305 11992 50 216250314564 98318 334 251 56 — — — — — —
▸ Model inputs — neutral MLE (past 3 seasons)
202431 MLB MLE2 teams — 122111 28702 9351 73 252311369681 117372 297 306 93 — — — — — —
202532 MLB MLEBoston Red Sox — 654610 15726026 321767 311 257301428728 170330 275 320 103 — — — — — —
202633 MLB MLE2 teams — 303287 621305 11992 50 216250314564 98318 334 251 56 — — — — — —
▸ 2027 season
▸ 2027 — full MLE projection (neutral park, full availability)
202734 MLB MLEBOS 100% 367344 8015010 171063 123 235277372649 137305 295 288 81 -8 +1 -3 +4 +8 0.1
▸ 2027 — real world (MLB)
202734 MLB CTXBOS 100% 256240 581207 12742 82 242284382665 140316 295 294 81 -6 +1 -2 +3 +6 0.1
▸ Career projection (2028+) — MLB context, MLB playing time (PA × MLB%)
202835 MLB MLEBOS 100% 197184 41705 9582 41 225265350615 125296 295 273 71 -7 +0 -7 +2 +4 -0.7
202835 MLB CTXBOS 100% 197184 43805 9582 41 231271359630 127306 295 280 71 -7 +0 -7 +2 +4 -0.7
▸ Career Totals
▸ Career totals — MLB only (actual + projected)
Career— A+C — 49234478 117226927214 371139548 16938 262325477802 215331 288 351 95 +137 +19 +37 +51 +107 35.7
/ 162G— A+C — 650591 15536428 491846 225 262325479804 217332 288 351 95 +18 +2 +5 +7 +14 4.7
Career— MLE — 77107041 162637742263 542237481 27754 231293408702 178307 317 309 95 +131 +19 +35 +54 +112 35.8
/ 162G— MLE — 650594 13832422 462007 235 232296411706 178309 317 309 95 +16 +2 +4 +7 +14 4.5

How the minor-league lines were translated

One row per minor-league stint. Open a row to see each step: the raw rate, the park adjustment, the league/level factor, the age adjustment (hitters) and the resulting MLE rate. Factors are the same ones listed on the MLE Factors page.

2026 AAAWorcester Red Sox · 37 PAwOBA .176 → .142 (−34)K% 29.7% → 35.7%
ComponentRawPark ÷Level factor ×GB/FB ×Age ×= MLE
K% /PA29.73%÷1.000×1.200——35.68%
BB% (unintentional) /PA2.70%÷1.000×0.690—×0.9401.75%
HBP% /PA0.00%—×0.940—×0.9400.00%
Singles /BIP20.83%÷1.000×0.930—×0.94018.21%
Doubles /BIP4.17%÷1.000×0.830—×0.9403.25%
Triples /BIP0.00%÷1.000×0.970—×0.9400.00%
Home runs /BIP0.00%÷1.000×0.700—×0.9400.00%

Factors used: league row International League. Park (home-season share, regressed): no park row on file (treated as neutral) — applied at half strength. Age: age 34 vs a level average of 27.2 → −6.0% on BB/HBP/hit rates (6.8 yr older than average).

Result: wOBA .176 → .142; ISO .029 → .022; BABIP .240 → .206. Both wOBAs use the same linear weights, so the change is the translation alone. The MLE line is not regressed to the mean — regression happens later, when seasons are blended into a projection (how).

2024 AAAWorcester Red Sox · 16 PAwOBA .353 → .291 (−61)K% 12.5% → 14.9%
ComponentRawPark ÷Level factor ×GB/FB ×Age ×= MLE
K% /PA12.50%÷1.004×1.200——14.94%
BB% (unintentional) /PA0.00%÷1.049×0.690—×0.9520.00%
HBP% /PA0.00%—×0.940—×0.9520.00%
Singles /BIP35.71%÷1.036×0.930—×0.95230.52%
Doubles /BIP7.14%÷0.951×0.830—×0.9525.93%
Triples /BIP0.00%÷1.143×0.970—×0.9520.00%
Home runs /BIP0.00%÷0.996×0.700—×0.9520.00%

Factors used: league row International League. Park (home-season share, regressed): HR 99, 1B 107, 2B 90, 3B 129, K 101, BB 110 — applied at half strength. Age: age 32 vs a level average of 27.2 → −4.8% on BB/HBP/hit rates (4.8 yr older than average).

Result: wOBA .353 → .291; ISO .062 → .050; BABIP .429 → .365. Both wOBAs use the same linear weights, so the change is the translation alone. The MLE line is not regressed to the mean — regression happens later, when seasons are blended into a projection (how).

2023 AAAWorcester Red Sox · 38 PAwOBA .469 → .330 (−139)K% 21.1% → 24.7%
ComponentRawPark ÷Level factor ×GB/FB ×Age ×= MLE
K% /PA21.05%÷1.023×1.200——24.70%
BB% (unintentional) /PA13.16%÷0.986×0.690—×0.9628.86%
HBP% /PA2.63%—×0.940—×0.9622.38%
Singles /BIP12.50%÷0.996×0.930—×0.96211.23%
Doubles /BIP16.67%÷1.309×0.830—×0.96210.16%
Triples /BIP0.00%÷0.905×0.970—×0.9620.00%
Home runs /BIP12.50%÷1.008×0.700—×0.9628.35%

Factors used: league row International League. Park (home-season share, regressed): HR 102, 1B 99, 2B 162, 3B 81, K 105, BB 97 — applied at half strength. Age: age 31 vs a level average of 27.2 → −3.8% on BB/HBP/hit rates (3.8 yr older than average).

Result: wOBA .469 → .330; ISO .406 → .268; BABIP .333 → .233. Both wOBAs use the same linear weights, so the change is the translation alone. The MLE line is not regressed to the mean — regression happens later, when seasons are blended into a projection (how).

2015 AANew Britain Rock Cats · 301 PAwOBA .386 → .319 (−67)K% 24.3% → 30.4%
ComponentRawPark ÷Level factor ×GB/FB ×Age ×= MLE
K% /PA24.25%÷0.974×1.220——30.37%
BB% (unintentional) /PA11.30%÷0.935×0.700—×1.0278.68%
HBP% /PA1.66%—×0.850—×1.0271.45%
Singles /BIP20.22%÷1.024×0.970×0.950×1.02718.68%
Doubles /BIP10.93%÷1.016×0.860×0.950×1.0279.03%
Triples /BIP3.28%÷0.900×0.950×0.950×1.0273.38%
Home runs /BIP5.46%÷1.133×0.780—×1.0273.86%

Factors used: league row EL. Park (home-season share, regressed): HR 127, 1B 105, 2B 103, 3B 80, K 95, BB 87 — applied at half strength. Age: age 23 vs a level average of 24.8 → +2.7% on BB/HBP/hit rates (1.8 yr younger than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.950.

Result: wOBA .386 → .319; ISO .242 → .191; BABIP .356 → .316. Both wOBAs use the same linear weights, so the change is the translation alone. The MLE line is not regressed to the mean — regression happens later, when seasons are blended into a projection (how).

2015 AAAAlbuquerque Isotopes · 275 PAwOBA .350 → .259 (−92)K% 24.7% → 33.2%
ComponentRawPark ÷Level factor ×GB/FB ×Age ×= MLE
K% /PA24.73%÷0.960×1.290——33.23%
BB% (unintentional) /PA5.45%÷1.056×0.710—×1.0503.85%
HBP% /PA0.73%—×0.980—×1.0500.75%
Singles /BIP19.68%÷1.010×0.900×0.950×1.05017.50%
Doubles /BIP10.64%÷1.075×0.810×0.950×1.0508.00%
Triples /BIP2.13%÷0.933×0.810×0.950×1.0501.84%
Home runs /BIP5.32%÷1.105×0.780—×1.0503.94%

Factors used: league row PCL. Park (home-season share, regressed): HR 121, 1B 102, 2B 115, 3B 87, K 92, BB 111 — applied at half strength. Age: age 23 vs a level average of 27.2 → +5.0% on BB/HBP/hit rates (4.2 yr younger than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.950.

Result: wOBA .350 → .259; ISO .227 → .157; BABIP .341 → .283. Both wOBAs use the same linear weights, so the change is the translation alone. The MLE line is not regressed to the mean — regression happens later, when seasons are blended into a projection (how).

2014 AATulsa Drillers · 237 PAwOBA .298 → .239 (−59)K% 34.6% → 42.3%
ComponentRawPark ÷Level factor ×GB/FB ×Age ×= MLE
K% /PA34.60%÷0.998×1.220——42.30%
BB% (unintentional) /PA11.81%÷1.038×0.700—×1.0428.30%
HBP% /PA0.84%—×0.870—×1.0420.77%
Singles /BIP18.70%÷0.995×0.920×0.950×1.04217.12%
Doubles /BIP6.50%÷1.087×0.840×0.950×1.0424.98%
Triples /BIP0.81%÷0.901×0.940×0.950×1.0420.84%
Home runs /BIP7.32%÷0.894×0.800—×1.0426.82%

Factors used: league row TL. Park (home-season share, regressed): HR 79, 1B 99, 2B 117, 3B 80, K 100, BB 108 — applied at half strength. Age: age 22 vs a level average of 24.8 → +4.2% on BB/HBP/hit rates (2.8 yr younger than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.950.

Result: wOBA .298 → .239; ISO .180 → .153; BABIP .281 → .246. Both wOBAs use the same linear weights, so the change is the translation alone. The MLE line is not regressed to the mean — regression happens later, when seasons are blended into a projection (how).

2014 A+Modesto Nuts · 218 PAwOBA .429 → .314 (−115)K% 27.1% → 37.1%
ComponentRawPark ÷Level factor ×GB/FB ×Age ×= MLE
K% /PA27.06%÷0.977×1.340——37.14%
BB% (unintentional) /PA13.76%÷0.947×0.710—×1.01210.44%
HBP% /PA1.38%—×0.790—×1.0121.10%
Singles /BIP25.60%÷1.004×0.910×0.951×1.01222.32%
Doubles /BIP13.60%÷1.047×0.820×0.951×1.01210.25%
Triples /BIP5.60%÷1.150×0.760×0.951×1.0123.56%
Home runs /BIP4.00%÷1.019×0.920—×1.0123.65%

Factors used: league row CAL. Park (home-season share, regressed): HR 104, 1B 101, 2B 109, 3B 130, K 95, BB 89 — applied at half strength. Age: age 22 vs a level average of 22.8 → +1.2% on BB/HBP/hit rates (0.8 yr younger than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.951.

Result: wOBA .429 → .314; ISO .250 → .172; BABIP .467 → .375. Both wOBAs use the same linear weights, so the change is the translation alone. The MLE line is not regressed to the mean — regression happens later, when seasons are blended into a projection (how).

2013 A+Modesto Nuts · 554 PAwOBA .303 → .226 (−77)K% 33.0% → 44.5%
ComponentRawPark ÷Level factor ×GB/FB ×Age ×= MLE
K% /PA33.03%÷0.994×1.340——44.52%
BB% (unintentional) /PA8.12%÷1.037×0.710—×1.0275.71%
HBP% /PA1.26%—×0.790—×1.0271.03%
Singles /BIP20.70%÷0.994×0.910×0.950×1.02718.49%
Doubles /BIP10.83%÷1.080×0.820×0.950×1.0278.02%
Triples /BIP1.59%÷1.150×0.760×0.950×1.0271.03%
Home runs /BIP3.82%÷0.831×0.920—×1.0274.34%

Factors used: league row CAL. Park (home-season share, regressed): HR 66, 1B 99, 2B 116, 3B 130, K 99, BB 107 — applied at half strength. Age: age 21 vs a level average of 22.8 → +2.7% on BB/HBP/hit rates (1.8 yr younger than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.950.

Result: wOBA .303 → .226; ISO .161 → .126; BABIP .343 → .287. Both wOBAs use the same linear weights, so the change is the translation alone. The MLE line is not regressed to the mean — regression happens later, when seasons are blended into a projection (how).

Not traceable per stint: some stints lack the counting stats the component translation needs. Level-wide factors that apply instead — .