Marcus Semien

2B New York Mets
Age 36 R/R 6'0" / 195 lbs MLB H -5% Svc 12.686 · Ctrl thru 2028
Overview
MLB40-MANExtFA 2028
YearAgeLvl / TeamPAAVG/OBP/SLGHRSBwRC+WAR
202433MLBTEX718.237/.308/.391238942.9
202534MLBTEX534.230/.310/.3641511871.3
202635MLBNYM547.215/.283/.3401510790.2
2027PROJ36MLBNYM346.236/.308/.370107961.1
2028PROJ37MLBNYM235.225/.295/.3446285-0.3
Last 3 seasons WAR 4.3  ·  Next 2 projected WAR 0.8Projected rows: MLB playing time only, park and league context applied.
ContractESTIMATED
Control thru2028Service12.686First FA2028
2027Ext$25M2028Ext$25M
Skills · percentileStatcast 2024-2026
Speed71
xwOBA54
Barrel%36
Avg EV29
Bat Spd19
Form.251/.324/.372 · rolling true talent (60d window) · proj .242/.312/.379
CompsJose Luis Sandoval (age 36) · Omar Ramirez (age 36) · Cesar Tapia (age 36)
2027 FULL-SEASON PROJECTIONstats below = full-season projection
showingPROJ
wRC+†vL 9996vR 88
AVG/OBP/SLG.236 / .308 / .370
PA346
HR10
SB7
K%18
BB%9
BABIP263
ISO138
MLB%100%
Value2027 · WAR
BAT: -1.6 runs (wOBA-derived runs vs avg)-2BATRUN: +1.8 runs (SB/CS + UBR baserunning)+2RUNFLD: +3.0 runs (Defensive runs vs avg)+3FLDPOS: +1.2 runs (Positional adjustment)+1POSREP: +7.5 runs (Replacement-level credit)+7REPTotal WAR: +1.00+1.0WAR
0.02.04.01.00.027282930313233343536
━ projected WAR━ paid WAR ($/8M) surplus deficit-$42M ctrl surplus
Tools · Recent Form · Splits · Contract
ToolsStatcast %ile · 2024-2026
CONTACT
xAVG
430.245
POWER
Barrel%
366.4
Avg EV
2987.5
Bat Spd
1968.1
SPEED
Sprint
7128.3
Recent Formrolling true talent ⓘ
K%12%▲▲8% over 99 PA (60d) · proj 18%
BB%9%▲10% over 99 PA (60d) · proj 9%
ISO.121▼.092 over 87 AB (60d) · proj .137
HR/BB2.7%▼1.2% over 80 BBE (60d) · proj 3.8%
BABIP.267▼.215 over 79 BIP (60d) · proj .272
SLASH.251/.324/.372·proj .242/.312/.379
Platoon Splits2024-2026 · 1354 PA
vs LHP
vs RHP
Edge
PA
342
1012
—
wRC+
105
86
◀◀L
wOBA
323
295
◀L
ISO
123
147
▶▶R
BABIP
291
240
◀◀L
K%
16.1%
16.1%
—
BB%
10.8%
8.1%
◀◀L
Contract ESTIMATED · service-time + WAR-based estimator (needs verification)
Status   FA
MLB Debut   2013
Service   12.686 yrs.days
Team Control Through   2028
First FA Year   2028
YearStatusSalary Proj WAR Value Surplus
2027Ext$25M+1.0$8M-$17M
2028Ext$25M———
Totals $50M $7M -$41M

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)
201120 AKannapolis Intimidators — 262229 581523 22532 34 253324376700 122312 208 305 53 — — — — — —
201221 A+Winston-Salem Dash — 487418 11532514 55985 115 275366476842 201327 2011 366 83 — — — — — —
201322 MLBChicago White Sox — 7169 18402 1220 22 261271406677 145348 311 294 84 -1 -0 +2 +3 +2 0.4
201322 AAACharlotte Knights — 142125 331114 14241 40 264343464807 200293 1710 352 92 — — — — — —
201322 AABirmingham Barons — 484393 11421515 84664 205 290419483903 193317 1417 401 108 — — — — — —
201322 INTLGlendale Desert Dogs — 8977 12302 10231 02 156261273534 117189 2611 248 54 — — — — — —
201423 MLBChicago White Sox — 255231 541026 21701 30 234300372673 139310 278 300 88 -4 +1 -1 +2 +6 0.4
201423 AAACharlotte Knights — 366303 8120315 53595 72 267385502887 234282 1614 386 107 — — — — — —
201524 MLBOakland Athletics — 601556 14323715 421321 115 257311405715 147312 227 317 103 +2 +0 -5 +6 +13 1.7
201625 MLBOakland Athletics — 621568 13527227 511390 102 238300435735 197268 228 324 110 +7 +1 +1 +7 +13 3.0
201726 MLBOakland Athletics — 386342 8519110 38852 121 249327398725 149300 2210 323 107 +3 +2 -4 +5 +8 1.4
201726 AAANashville Sounds — 1514 4001 110 00 286333500833 214250 77 366 99 — — — — — —
201726 A+Stockton Ports — 2017 6301 020 00 3533537061.059 353294 100 387 155 — — — — — —
201827 MLBOakland Athletics — 703632 16135215 611311 146 255321388709 133296 199 315 101 +1 +0 +4 +8 +15 2.8
201928 MLBOakland Athletics — 747657 18743733 871022 108 285370522892 237294 1412 390 154 +48 -1 +1 +8 +16 7.4
202029 MLBOakland Athletics — 236211 47917 25500 40 223305374679 152260 2111 306 97 -1 +1 -6 +3 +5 0.2
202130 MLBToronto Blue Jays — 724652 17339245 661463 151 265336538874 273276 209 378 142 +36 +3 +4 +3 +16 6.2
202231 MLBTexas Rangers — 724657 16331526 531204 258 248308429737 181263 177 322 101 +1 +2 +7 +3 +16 2.8
202332 MLBTexas Rangers — 753670 18540429 721105 143 276350478828 201291 1510 363 128 +25 +2 +12 +3 +16 5.9
202433 MLBTexas Rangers — 718650 15427223 641053 83 237308391699 154250 159 313 94 -5 +0 +15 +3 +16 2.9
202534 MLBTexas Rangers — 534470 10816115 50935 111 230310364674 134251 179 301 87 -9 +2 +6 +2 +12 1.3
202635 MLBNew York Mets — 547494 10615115 451042 103 215283340623 126239 198 279 79 -14 +1 +1 +2 +12 0.2
▸ Career Totals (raw MLB only — historical actual)
MLB Career— — 76206859 171933837268 676140929 14943 251320428748 177277 189 330 110 +89 +13 +36 +55 +165 36.5
▸ Career — adjusted (every ACTUAL line translated to park/league-neutral MLB equivalents)
201120 A MLEKannapolis Intimidators — 262237 501322 14682 34 211261308569 97267 265 246 53 — — — — — —
201221 A+ MLEWinston-Salem Dash — 487439 10027413 341435 115 228291396687 169292 297 291 83 — — — — — —
201322 MLB MLEChicago White Sox — 7169 18402 1220 22 261271406677 145348 311 292 84 -1 -0 +2 +3 +2 0.4
201322 AAA MLECharlotte Knights — 142128 30914 11281 40 234300414714 180260 208 304 92 — — — — — —
201322 AA MLEBirmingham Barons — 484421 10518413 57874 205 249344404748 154284 1812 328 108 — — — — — —
201423 MLB MLEChicago White Sox — 255231 541026 21701 30 234300372673 139310 278 299 88 -4 +1 -1 +2 +6 0.4
201423 AAA MLECharlotte Knights — 366319 7517312 37725 72 235324420744 185259 2010 327 107 — — — — — —
201524 MLB MLEOakland Athletics — 601557 14322716 411321 115 257309408716 151312 227 321 103 +2 +0 -5 +6 +13 1.7
201625 MLB MLEOakland Athletics — 621569 13726230 501390 102 241302452754 211268 228 331 110 +7 +1 +1 +7 +13 3.0
201726 MLB MLEOakland Athletics — 386342 8518111 38852 121 249327404731 155300 2210 327 107 +3 +2 -4 +5 +8 1.4
201726 AAA MLENashville Sounds — 1514 4001 110 00 286333500833 214228 77 314 99 — — — — — —
201726 A+ MLEStockton Ports — 2017 6301 030 00 3533537061.059 353248 150 398 155 — — — — — —
201827 MLB MLEOakland Athletics — 703633 16234216 601311 146 256321392713 136296 199 317 101 +1 +0 +4 +8 +15 2.8
201928 MLB MLEOakland Athletics — 747659 19042736 851022 108 288371537908 249294 1411 396 154 +48 -1 +1 +8 +16 7.4
202029 MLB MLEOakland Athletics — 236211 48918 25500 40 227309393703 166260 2111 312 97 -1 +1 -6 +3 +5 0.2
202130 MLB MLEToronto Blue Jays — 724652 17339245 661463 151 265336538874 273276 209 378 142 +36 +3 +4 +3 +16 6.2
202231 MLB MLETexas Rangers — 724657 16132524 531204 258 245305419724 174263 177 317 101 +1 +2 +7 +3 +16 2.8
202332 MLB MLETexas Rangers — 753672 18442427 711105 143 274348469816 195291 159 357 128 +25 +2 +12 +3 +16 5.9
202433 MLB MLETexas Rangers — 718652 15228221 621053 83 233303379681 146250 159 307 94 -5 +0 +15 +3 +16 2.9
202534 MLB MLETexas Rangers — 534470 10817114 50935 111 230310360670 130251 179 296 87 -9 +2 +6 +2 +12 1.3
202635 MLB MLENew York Mets — 547494 10916115 451042 103 221288348637 128239 198 285 79 -14 +1 +1 +2 +12 0.2
201120 A MLEKannapolis Intimidators — 262237 501322 14682 34 211261308569 97282 265 246 53 — — — — — —
201120 A RAWKannapolis Intimidators — 262229 581523 22532 34 253324376700 122312 208 305 53 — — — — — —
201221 A+ MLEWinston-Salem Dash — 487439 10027413 341435 115 228291396687 169304 297 291 83 — — — — — —
201221 A+ RAWWinston-Salem Dash — 487418 11532514 55985 115 275366476842 201327 2011 366 83 — — — — — —
201322 AA MLE4 teams — 786697 17335621 771556 269 248328406734 158290 2010 319 102 — — — — — —
201322 AA RAW4 teams — 786664 17739623 1091356 269 267374447822 181302 1714 365 102 — — — — — —
201423 AAA MLE2 teams — 621550 12927518 581426 102 235314400714 165281 239 315 100 — — — — — —
201423 AAA RAW2 teams — 621534 13530521 741296 102 253350446796 193293 2112 351 100 — — — — — —
201524 MLB MLEOakland Athletics — 601557 14322716 411321 115 257309408716 151310 227 321 103 +2 +0 -5 +6 +13 1.7
201524 MLB RAWOakland Athletics — 601556 14323715 421321 115 257311405715 147312 227 317 103 +2 +0 -5 +6 +13 1.7
201625 MLB MLEOakland Athletics — 621569 13726230 501390 102 241302452754 211267 228 331 110 +7 +1 +1 +7 +13 3.0
201625 MLB RAWOakland Athletics — 621568 13527227 511390 102 238300435735 197268 228 324 110 +7 +1 +1 +7 +13 3.0
201726 MLB MLE3 teams — 421373 9521113 39892 121 255329421749 166296 219 330 109 +5 +2 -4 +5 +9 1.7
201726 MLB RAW3 teams — 421373 9522112 39882 121 255329416744 161297 219 327 109 +5 +2 -4 +5 +9 1.7
201827 MLB MLEOakland Athletics — 703633 16234216 601311 146 256321392713 136296 199 317 101 +1 +0 +4 +8 +15 2.8
201827 MLB RAWOakland Athletics — 703632 16135215 611311 146 255321388709 133296 199 315 101 +1 +0 +4 +8 +15 2.8
201928 MLB MLEOakland Athletics — 747659 19042736 851022 108 288371537908 249295 1411 396 154 +48 -1 +1 +8 +16 7.4
201928 MLB RAWOakland Athletics — 747657 18743733 871022 108 285370522892 237294 1412 390 154 +48 -1 +1 +8 +16 7.4
202029 MLB MLEOakland Athletics — 236211 48918 25500 40 227309393703 166261 2111 312 97 -1 +1 -6 +3 +5 0.2
202029 MLB RAWOakland Athletics — 236211 47917 25500 40 223305374679 152260 2111 306 97 -1 +1 -6 +3 +5 0.2
202130 MLB MLEToronto Blue Jays — 724652 17339245 661463 151 265336538874 273276 209 378 142 +36 +3 +4 +3 +16 6.2
202130 MLB RAWToronto Blue Jays — 724652 17339245 661463 151 265336538874 273276 209 378 142 +36 +3 +4 +3 +16 6.2
202231 MLB MLETexas Rangers — 724657 16132524 531204 258 245305419724 174262 177 317 101 +1 +2 +7 +3 +16 2.8
202231 MLB RAWTexas Rangers — 724657 16331526 531204 258 248308429737 181263 177 322 101 +1 +2 +7 +3 +16 2.8
202332 MLB MLETexas Rangers — 753672 18442427 711105 143 274348469816 195291 159 357 128 +25 +2 +12 +3 +16 5.9
202332 MLB RAWTexas Rangers — 753670 18540429 721105 143 276350478828 201291 1510 363 128 +25 +2 +12 +3 +16 5.9
202433 MLB MLETexas Rangers — 718652 15228221 621053 83 233303379681 146249 159 307 94 -5 +0 +15 +3 +16 2.9
202433 MLB RAWTexas Rangers — 718650 15427223 641053 83 237308391699 154250 159 313 94 -5 +0 +15 +3 +16 2.9
202534 MLB MLETexas Rangers — 534470 10817114 50935 111 230310360670 130253 179 296 87 -9 +2 +6 +2 +12 1.3
202534 MLB RAWTexas Rangers — 534470 10816115 50935 111 230310364674 134251 179 301 87 -9 +2 +6 +2 +12 1.3
202635 MLB MLENew York Mets — 547494 10916115 451042 103 221288348637 128247 198 285 79 -14 +1 +1 +2 +12 0.2
202635 MLB RAWNew York Mets — 547494 10615115 451042 103 215283340623 126239 198 279 79 -14 +1 +1 +2 +12 0.2
201120 A MLEKannapolis Intimidators — 262244 501322 14682 34 205261299560 94267 265 246 53 — — — — — —
201221 A+ MLEWinston-Salem Dash — 487445 10027413 341435 115 225291391682 166292 297 291 83 — — — — — —
201322 AA MLE4 teams — 786697 17335621 771556 269 248328406734 158286 2010 319 102 — — — — — —
201423 AAA MLE2 teams — 621552 12927518 581426 102 234314399713 165280 239 315 100 — — — — — —
201524 MLB MLEOakland Athletics — 601554 14322716 411321 115 258309410719 152312 227 321 103 — — — — — —
201625 MLB MLEOakland Athletics — 621566 13726230 501390 102 242302454756 212268 228 331 110 — — — — — —
201726 MLB MLE3 teams — 421377 9521113 39892 121 252329416745 164295 219 330 109 — — — — — —
201827 MLB MLEOakland Athletics — 703636 16234216 601311 146 255321390711 135296 199 317 101 — — — — — —
201928 MLB MLEOakland Athletics — 747654 19042736 851022 108 291371541913 251294 1411 396 154 — — — — — —
202029 MLB MLEOakland Athletics — 236209 48918 25500 40 230309397706 167260 2111 312 97 — — — — — —
202130 MLB MLEToronto Blue Jays — 724649 17339245 661463 151 267336541876 274276 209 378 142 — — — — — —
202231 MLB MLETexas Rangers — 724661 16132524 531204 258 244305416721 172263 177 317 101 — — — — — —
202332 MLB MLETexas Rangers — 753671 18442427 711105 143 274348469817 195291 159 357 128 — — — — — —
202433 MLB MLETexas Rangers — 718647 15228221 621053 83 235303382684 147250 159 307 94 — — — — — —
202534 MLB MLETexas Rangers — 534474 10817114 50935 111 228310357667 129251 179 296 87 — — — — — —
202635 MLB MLENew York Mets — 547495 10916115 451042 103 220288347636 127239 198 285 79 — — — — — —
▸ Model inputs — neutral MLE (past 3 seasons)
202433 MLB MLETexas Rangers — 718647 15228221 621053 83 235303382684 147250 159 307 94 — — — — — —
202534 MLB MLETexas Rangers — 534474 10817114 50935 111 228310357667 129251 179 296 87 — — — — — —
202635 MLB MLENew York Mets — 547495 10916115 451042 103 220288347636 127239 198 285 79 — — — — — —
▸ 2027 season
▸ 2027 — full MLE projection (neutral park, full availability)
202736 MLB MLENYM 100% 439395 9615112 38783 92 243314379694 136272 189 310 96 -2 +1 +4 +2 +10 1.0
▸ 2027 — real world (MLB)
202736 MLB CTXNYM 100% 346311 7411110 30622 71 236308370678 134263 189 304 96 -2 +1 +3 +1 +7 1.1
▸ Career projection (2028+) — MLB context, MLB playing time (PA × MLB%)
202837 MLB MLENYM 100% 235212 49716 20441 21 231301352653 122262 199 294 85 -4 +0 -5 +1 +5 -0.3
202837 MLB CTXNYM 100% 235212 49716 20441 21 225295344639 119254 199 288 85 -4 +0 -5 +1 +5 -0.3
▸ Career Totals
▸ Career totals — MLB only (actual + projected)
Career— A+C — 78557071 176834538274 696145330 15144 250320426746 176277 189 329 106 +85 +13 +31 +56 +170 36.2
/ 162G— A+C — 650585 14729323 581202 124 251321429750 178278 189 329 106 +7 +1 +3 +5 +14 3.0
Career— MLE — 100669045 223944954335 880193550 20363 248318420738 173278 199 324 106 +83 +14 +34 +57 +178 37.3
/ 162G— MLE — 650584 14429322 571253 134 247317420736 173277 199 324 106 +7 +1 +3 +5 +14 3.0

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.

2017 A+Stockton Ports · 20 PAwOBA .441 → .398 (−43)K% 10.0% → 13.3%
ComponentRawPark ÷Level factor ×GB/FB ×Age ×= MLE
K% /PA10.00%÷1.010×1.340——13.27%
BB% (unintentional) /PA0.00%÷1.115×0.710—×0.9580.00%
HBP% /PA0.00%—×0.790—×0.9580.00%
Singles /BIP13.33%÷0.979×0.910—×0.95811.87%
Doubles /BIP20.00%÷0.972×0.820—×0.95816.16%
Triples /BIP0.00%÷0.900×0.760—×0.9580.00%
Home runs /BIP6.67%÷1.397×0.920—×0.9584.21%

Factors used: league row CAL. Park (home-season share, regressed): HR 179, 1B 96, 2B 94, 3B 80, K 102, BB 123 — applied at half strength. Age: age 27 vs a level average of 22.8 → −4.2% on BB/HBP/hit rates (4.2 yr older than average).

Result: wOBA .441 → .398; ISO .353 → .294; BABIP .294 → .248. 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).

2017 AAANashville Sounds · 15 PAwOBA .356 → .314 (−41)K% 6.7% → 8.6%
ComponentRawPark ÷Level factor ×GB/FB ×Age ×= MLE
K% /PA6.67%÷1.003×1.290——8.58%
BB% (unintentional) /PA6.67%÷1.029×0.710—×1.0034.61%
HBP% /PA0.00%—×0.980—×1.0030.00%
Singles /BIP23.08%÷0.984×0.900—×1.00321.17%
Doubles /BIP0.00%÷1.021×0.810—×1.0030.00%
Triples /BIP0.00%÷0.900×0.810—×1.0030.00%
Home runs /BIP7.69%÷0.868×0.780—×1.0036.94%

Factors used: league row PCL. Park (home-season share, regressed): HR 74, 1B 97, 2B 104, 3B 80, K 101, BB 106 — applied at half strength. Age: age 27 vs a level average of 27.2 → +0.3% on BB/HBP/hit rates (0.2 yr younger than average).

Result: wOBA .356 → .314; ISO .214 → .194; BABIP .250 → .228. 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 AAACharlotte Knights · 366 PAwOBA .380 → .327 (−52)K% 16.1% → 19.8%
ComponentRawPark ÷Level factor ×GB/FB ×Age ×= MLE
K% /PA16.12%÷0.975×1.200——19.83%
BB% (unintentional) /PA13.93%÷1.012×0.690—×1.0489.96%
HBP% /PA1.37%—×0.940—×1.0481.35%
Singles /BIP17.62%÷0.966×0.930×0.950×1.04816.90%
Doubles /BIP8.20%÷0.977×0.830×0.950×1.0486.93%
Triples /BIP1.23%÷0.910×0.970×0.950×1.0481.30%
Home runs /BIP6.15%÷1.118×0.840—×1.0484.84%

Factors used: league row IL. Park (home-season share, regressed): HR 124, 1B 93, 2B 95, 3B 82, K 95, BB 102 — applied at half strength. Age: age 24 vs a level average of 27.2 → +4.8% on BB/HBP/hit rates (3.2 yr younger than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.950.

Result: wOBA .380 → .327; ISO .234 → .200; BABIP .282 → .259. 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 AABirmingham Barons · 484 PAwOBA .389 → .328 (−61)K% 13.6% → 18.0%
ComponentRawPark ÷Level factor ×GB/FB ×Age ×= MLE
K% /PA13.64%÷0.926×1.220——17.96%
BB% (unintentional) /PA16.74%÷1.001×0.680—×1.02711.67%
HBP% /PA0.83%—×0.840—×1.0270.71%
Singles /BIP22.32%÷0.990×0.920×0.976×1.02720.80%
Doubles /BIP6.42%÷1.096×0.910×0.976×1.0275.35%
Triples /BIP1.53%÷1.150×0.880×0.976×1.0271.17%
Home runs /BIP4.59%÷0.991×0.800—×1.0273.80%

Factors used: league row SL. Park (home-season share, regressed): HR 98, 1B 98, 2B 119, 3B 130, K 85, BB 100 — 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 ×0.976.

Result: wOBA .389 → .328; ISO .193 → .164; BABIP .317 → .284. 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 AAACharlotte Knights · 142 PAwOBA .347 → .304 (−43)K% 16.9% → 19.8%
ComponentRawPark ÷Level factor ×GB/FB ×Age ×= MLE
K% /PA16.90%÷1.023×1.200——19.83%
BB% (unintentional) /PA9.86%÷0.939×0.690—×1.0507.61%
HBP% /PA0.70%—×0.940—×1.0500.70%
Singles /BIP16.83%÷1.004×0.930×0.950×1.05015.55%
Doubles /BIP10.89%÷1.006×0.830×0.950×1.0508.97%
Triples /BIP0.99%÷0.900×0.970×0.950×1.0501.06%
Home runs /BIP3.96%÷0.972×0.840—×1.0503.59%

Factors used: league row IL. Park (home-season share, regressed): HR 94, 1B 101, 2B 101, 3B 80, K 105, BB 88 — 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 .347 → .304; ISO .200 → .179; BABIP .293 → .260. 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).

2012 A+Winston-Salem Dash · 487 PAwOBA .358 → .291 (−67)K% 20.1% → 29.3%
ComponentRawPark ÷Level factor ×GB/FB ×Age ×= MLE
K% /PA20.12%÷0.974×1.420——29.33%
BB% (unintentional) /PA11.09%÷1.016×0.630—×1.0126.96%
HBP% /PA1.03%—×0.860—×1.0120.89%
Singles /BIP20.00%÷1.034×0.940×0.997×1.01218.34%
Doubles /BIP10.00%÷0.958×0.830×0.997×1.0128.74%
Triples /BIP1.56%÷1.030×0.800×0.997×1.0121.22%
Home runs /BIP4.38%÷0.960×0.900—×1.0124.15%

Factors used: league row CAR. Park (home-season share, regressed): HR 92, 1B 107, 2B 92, 3B 106, K 95, BB 103 — 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 ×0.997.

Result: wOBA .358 → .291; ISO .201 → .173; BABIP .327 → .292. 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).

2011 AKannapolis Intimidators · 262 PAwOBA .301 → .246 (−54)K% 20.2% → 26.0%
ComponentRawPark ÷Level factor ×GB/FB ×Age ×= MLE
K% /PA20.23%÷1.042×1.340——26.01%
BB% (unintentional) /PA8.40%÷1.032×0.660—×1.0155.45%
HBP% /PA0.76%—×0.770—×1.0150.60%
Singles /BIP21.59%÷1.055×0.920×0.967×1.01518.48%
Doubles /BIP8.52%÷0.945×0.820×0.967×1.0157.26%
Triples /BIP1.14%÷1.013×0.940×0.967×1.0151.03%
Home runs /BIP1.70%÷1.023×0.820—×1.0151.39%

Factors used: league row SAL. Park (home-season share, regressed): HR 105, 1B 111, 2B 89, 3B 103, K 108, BB 106 — applied at half strength. Age: age 21 vs a level average of 22.0 → +1.5% on BB/HBP/hit rates (1.0 yr younger than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.967.

Result: wOBA .301 → .246; ISO .122 → .105; BABIP .312 → .267. 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 — .