J.T. Arruda
SS Montgomery Biscuits| Year | Age | Lvl / Team | PA | AVG/OBP/SLG | HR | SB | wRC+ | WAR | MLE AVG/OBP/SLG |
|---|---|---|---|---|---|---|---|---|---|
| 2024 | 26 | AAWSH | 442 | .220/.301/.310 | 3 | 9 | 45 | — | .200/.257/.274 |
| 2025 | 27 | AAA/AAWSH | 235 | .252/.329/.390 | 7 | 15 | 60 | — | .213/.274/.315 |
| 2026 | 28 | AATB | 335 | .267/.381/.379 | 6 | 24 | 73 | — | .227/.305/.319 |
| 2027PROJMLE | 29 | MLBTB | 3 | .216/.284/.307 | 0 | 0 | 67 | -0.0 | |
| 2028PROJ23% MLB | 30 | MLBTB | 48 | .215/.282/.305 | 1 | 2 | 66 | -0.0 |
Tools · ContractCON 50 / POW 45
Career Stats + Projections
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.
| Year | Age | Lvl | Team | MLB% | PA | AB | H | 2B | 3B | HR | BB | SO | HBP | SB | CS | AVG | OBP | SLG | OPS | ISO | BABIP | K% | BB% | wOBA | wRC+ | BAT | RUN | FLD | POS | REP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▸ Career — actual stats, one row per stint (as recorded, no adjustments) | |||||||||||||||||||||||||||||||
| 2021 | 23 | A+ | Wilmington Blue Rocks | — | 184 | 167 | 31 | 8 | 1 | 2 | 16 | 49 | 0 | 5 | 2 | 186 | 257 | 281 | 538 | 96 | 248 | 27 | 9 | 246 | 9 | — | — | — | — | — | — |
| 2021 | 23 | A | Fredericksburg Nationals | — | 166 | 136 | 32 | 5 | 2 | 1 | 29 | 32 | 1 | 9 | 0 | 235 | 373 | 324 | 697 | 88 | 301 | 19 | 17 | 328 | 53 | — | — | — | — | — | — |
| 2022 | 24 | A | Fredericksburg Nationals | — | 210 | 170 | 47 | 9 | 3 | 4 | 35 | 45 | 0 | 17 | 3 | 276 | 400 | 435 | 835 | 159 | 347 | 21 | 17 | 368 | 82 | — | — | — | — | — | — |
| 2023 | 25 | AA | Harrisburg Senators | — | 458 | 376 | 85 | 14 | 3 | 6 | 74 | 118 | 4 | 31 | 8 | 226 | 359 | 327 | 686 | 101 | 311 | 26 | 16 | 319 | 59 | — | — | — | — | — | — |
| 2024 | 26 | AA | Harrisburg Senators | — | 442 | 387 | 85 | 20 | 3 | 3 | 41 | 93 | 4 | 9 | 2 | 220 | 301 | 310 | 611 | 90 | 279 | 21 | 9 | 275 | 45 | — | — | — | — | — | — |
| 2025 | 27 | AAA | Rochester Red Wings | — | 199 | 176 | 44 | 4 | 1 | 5 | 21 | 43 | 1 | 13 | 0 | 250 | 333 | 369 | 703 | 119 | 305 | 22 | 11 | 318 | 58 | — | — | — | — | — | — |
| 2025 | 27 | AA | Harrisburg Senators | — | 36 | 34 | 9 | 2 | 0 | 2 | 1 | 11 | 1 | 2 | 0 | 265 | 306 | 500 | 806 | 235 | 333 | 31 | 3 | 352 | 71 | — | — | — | — | — | — |
| 2026 | 28 | AA | Montgomery Biscuits | — | 335 | 277 | 74 | 13 | 0 | 6 | 50 | 86 | 1 | 24 | 4 | 267 | 381 | 379 | 760 | 112 | 360 | 26 | 15 | 342 | 73 | — | — | — | — | — | — |
| ▸ Career — adjusted (every ACTUAL line translated to park/league-neutral MLB equivalents) | |||||||||||||||||||||||||||||||
| 2021 | 23 | A+ MLE | Wilmington Blue Rocks | — | 184 | 172 | 24 | 6 | 1 | 2 | 11 | 68 | 0 | 5 | 2 | 140 | 191 | 221 | 412 | 81 | 214 | 37 | 6 | 182 | 9 | — | — | — | — | — | — |
| 2021 | 23 | A MLE | Fredericksburg Nationals | — | 166 | 148 | 28 | 4 | 2 | 1 | 17 | 45 | 1 | 9 | 0 | 189 | 277 | 264 | 541 | 74 | 266 | 27 | 10 | 246 | 53 | — | — | — | — | — | — |
| 2022 | 24 | A MLE | Fredericksburg Nationals | — | 210 | 181 | 41 | 8 | 3 | 3 | 24 | 63 | 0 | 17 | 3 | 227 | 317 | 354 | 671 | 127 | 306 | 30 | 11 | 290 | 82 | — | — | — | — | — | — |
| 2023 | 25 | AA MLE | Harrisburg Senators | — | 458 | 401 | 78 | 12 | 3 | 4 | 49 | 143 | 4 | 31 | 8 | 195 | 289 | 269 | 558 | 75 | 286 | 31 | 11 | 256 | 59 | — | — | — | — | — | — |
| 2024 | 26 | AA MLE | Harrisburg Senators | — | 442 | 401 | 80 | 18 | 3 | 2 | 27 | 113 | 4 | 9 | 2 | 200 | 257 | 274 | 531 | 75 | 261 | 26 | 6 | 235 | 45 | — | — | — | — | — | — |
| 2025 | 27 | AAA MLE | Rochester Red Wings | — | 199 | 182 | 39 | 3 | 1 | 4 | 15 | 50 | 1 | 13 | 0 | 214 | 278 | 308 | 585 | 93 | 269 | 25 | 8 | 254 | 58 | — | — | — | — | — | — |
| 2025 | 27 | AA MLE | Harrisburg Senators | — | 36 | 34 | 7 | 2 | 0 | 1 | 1 | 13 | 1 | 2 | 0 | 206 | 250 | 353 | 603 | 147 | 305 | 36 | 3 | 273 | 71 | — | — | — | — | — | — |
| 2026 | 28 | AA MLE | Montgomery Biscuits | — | 335 | 295 | 67 | 12 | 0 | 5 | 32 | 105 | 1 | 24 | 4 | 227 | 305 | 319 | 624 | 92 | 316 | 31 | 10 | 276 | 73 | — | — | — | — | — | — |
| 2021 | 23 | A+ MLE | 2 teams | — | 350 | 319 | 51 | 10 | 3 | 2 | 29 | 113 | 1 | 14 | 2 | 160 | 232 | 229 | 461 | 69 | 239 | 32 | 8 | 212 | 30 | — | — | — | — | — | — |
| 2021 | 23 | A+ RAW | 2 teams | — | 350 | 303 | 63 | 13 | 3 | 3 | 45 | 81 | 1 | 14 | 2 | 208 | 312 | 300 | 613 | 92 | 273 | 23 | 13 | 285 | 30 | — | — | — | — | — | — |
| 2022 | 24 | A MLE | Fredericksburg Nationals | — | 210 | 181 | 41 | 8 | 3 | 3 | 24 | 63 | 0 | 17 | 3 | 227 | 317 | 354 | 671 | 127 | 322 | 30 | 11 | 290 | 82 | — | — | — | — | — | — |
| 2022 | 24 | A RAW | Fredericksburg Nationals | — | 210 | 170 | 47 | 9 | 3 | 4 | 35 | 45 | 0 | 17 | 3 | 276 | 400 | 435 | 835 | 159 | 347 | 21 | 17 | 368 | 82 | — | — | — | — | — | — |
| 2023 | 25 | AA MLE | Harrisburg Senators | — | 458 | 401 | 78 | 12 | 3 | 4 | 49 | 143 | 4 | 31 | 8 | 195 | 289 | 269 | 558 | 75 | 289 | 31 | 11 | 256 | 59 | — | — | — | — | — | — |
| 2023 | 25 | AA RAW | Harrisburg Senators | — | 458 | 376 | 85 | 14 | 3 | 6 | 74 | 118 | 4 | 31 | 8 | 226 | 359 | 327 | 686 | 101 | 311 | 26 | 16 | 319 | 59 | — | — | — | — | — | — |
| 2024 | 26 | AA MLE | Harrisburg Senators | — | 442 | 401 | 80 | 18 | 3 | 2 | 27 | 113 | 4 | 9 | 2 | 200 | 257 | 274 | 531 | 75 | 270 | 26 | 6 | 235 | 45 | — | — | — | — | — | — |
| 2024 | 26 | AA RAW | Harrisburg Senators | — | 442 | 387 | 85 | 20 | 3 | 3 | 41 | 93 | 4 | 9 | 2 | 220 | 301 | 310 | 611 | 90 | 279 | 21 | 9 | 275 | 45 | — | — | — | — | — | — |
| 2025 | 27 | AAA MLE | 2 teams | — | 235 | 217 | 46 | 5 | 1 | 5 | 15 | 64 | 2 | 15 | 0 | 212 | 269 | 313 | 583 | 101 | 277 | 27 | 6 | 257 | 60 | — | — | — | — | — | — |
| 2025 | 27 | AAA RAW | 2 teams | — | 235 | 210 | 53 | 6 | 1 | 7 | 22 | 54 | 2 | 15 | 0 | 252 | 329 | 390 | 720 | 138 | 309 | 23 | 9 | 323 | 60 | — | — | — | — | — | — |
| 2026 | 28 | AA MLE | Montgomery Biscuits | — | 335 | 295 | 67 | 12 | 0 | 5 | 32 | 105 | 1 | 24 | 4 | 227 | 305 | 319 | 624 | 92 | 328 | 31 | 10 | 276 | 73 | — | — | — | — | — | — |
| 2026 | 28 | AA RAW | Montgomery Biscuits | — | 335 | 277 | 74 | 13 | 0 | 6 | 50 | 86 | 1 | 24 | 4 | 267 | 381 | 379 | 760 | 112 | 360 | 26 | 15 | 342 | 73 | — | — | — | — | — | — |
| 2021 | 23 | A+ MLE | 2 teams | — | 350 | 317 | 51 | 10 | 3 | 2 | 29 | 113 | 1 | 14 | 2 | 161 | 232 | 230 | 462 | 69 | 239 | 32 | 8 | 212 | 30 | — | — | — | — | — | — |
| 2022 | 24 | A MLE | Fredericksburg Nationals | — | 210 | 184 | 41 | 8 | 3 | 3 | 24 | 63 | 0 | 17 | 3 | 223 | 317 | 348 | 665 | 125 | 306 | 30 | 11 | 290 | 82 | — | — | — | — | — | — |
| 2023 | 25 | AA MLE | Harrisburg Senators | — | 458 | 402 | 78 | 12 | 3 | 4 | 49 | 143 | 4 | 31 | 8 | 194 | 289 | 269 | 557 | 75 | 286 | 31 | 11 | 256 | 59 | — | — | — | — | — | — |
| 2024 | 26 | AA MLE | Harrisburg Senators | — | 442 | 408 | 80 | 18 | 3 | 2 | 27 | 113 | 4 | 9 | 2 | 196 | 257 | 270 | 527 | 74 | 261 | 26 | 6 | 235 | 45 | — | — | — | — | — | — |
| 2025 | 27 | AAA MLE | 2 teams | — | 235 | 216 | 46 | 5 | 1 | 5 | 15 | 64 | 2 | 15 | 0 | 213 | 269 | 315 | 584 | 102 | 275 | 27 | 6 | 257 | 60 | — | — | — | — | — | — |
| 2026 | 28 | AA MLE | Montgomery Biscuits | — | 335 | 299 | 67 | 12 | 0 | 5 | 32 | 105 | 1 | 24 | 4 | 224 | 305 | 314 | 619 | 90 | 316 | 31 | 10 | 276 | 73 | — | — | — | — | — | — |
| ▸ Model inputs — neutral MLE (past 3 seasons) | |||||||||||||||||||||||||||||||
| 2024 | 26 | AA MLE | Harrisburg Senators | — | 442 | 408 | 80 | 18 | 3 | 2 | 27 | 113 | 4 | 9 | 2 | 196 | 257 | 270 | 527 | 74 | 261 | 26 | 6 | 235 | 45 | — | — | — | — | — | — |
| 2025 | 27 | AAA MLE | 2 teams | — | 235 | 216 | 46 | 5 | 1 | 5 | 15 | 64 | 2 | 15 | 0 | 213 | 269 | 315 | 584 | 102 | 275 | 27 | 6 | 257 | 60 | — | — | — | — | — | — |
| 2026 | 28 | AA MLE | Montgomery Biscuits | — | 335 | 299 | 67 | 12 | 0 | 5 | 32 | 105 | 1 | 24 | 4 | 224 | 305 | 314 | 619 | 90 | 316 | 31 | 10 | 276 | 73 | — | — | — | — | — | — |
| ▸ 2027 season | |||||||||||||||||||||||||||||||
| ▸ 2027 — full MLE projection (neutral park, full availability) | |||||||||||||||||||||||||||||||
| 2027 | 29 | MLB MLE | TB | 2% | 376 | 341 | 72 | 13 | 1 | 5 | 30 | 105 | 2 | 15 | 2 | 214 | 282 | 307 | 589 | 93 | 289 | 28 | 8 | 268 | 67 | -15 | +2 | +0 | +4 | +8 | 0.1 |
| ▸ 2027 — real world (MLB) | |||||||||||||||||||||||||||||||
| 2027 | 29 | MLB CTX | TB | 2% | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 216 | 284 | 307 | 591 | 91 | 292 | 33 | 0 | 269 | 67 | -0 | +0 | +0 | +0 | +0 | -0.0 |
| ▸ Career projection (2028+) — MLB context, MLB playing time (PA × MLB%) | |||||||||||||||||||||||||||||||
| 2028 | 30 | MLB MLE | TB | 23% | 211 | 191 | 41 | 7 | 1 | 3 | 17 | 59 | 1 | 7 | 1 | 213 | 280 | 305 | 585 | 92 | 287 | 28 | 8 | 266 | 66 | -8 | +1 | -2 | +2 | +5 | -0.3 |
| 2028 | 30 | MLB CTX | TB | 23% | 48 | 44 | 10 | 2 | 0 | 1 | 4 | 13 | 0 | 2 | 0 | 215 | 282 | 305 | 587 | 90 | 291 | 27 | 8 | 267 | 66 | -2 | +0 | -0 | +1 | +1 | -0.0 |
| ▸ Career Totals | |||||||||||||||||||||||||||||||
| ▸ Career totals — MLB only (actual + projected) | |||||||||||||||||||||||||||||||
| Career | — | A+C | — | 48 | 44 | 10 | 2 | 0 | 1 | 4 | 13 | 0 | 2 | 0 | 227 | 292 | 341 | 633 | 114 | 300 | 27 | 8 | 267 | 58 | -2 | +0 | -0 | +1 | +1 | -0.0 | |
| / 162G | — | A+C | — | 650 | 596 | 136 | 27 | 0 | 14 | 54 | 176 | 0 | 27 | 0 | 228 | 292 | 344 | 636 | 116 | 300 | 27 | 8 | 267 | 58 | -26 | +5 | -6 | +7 | +14 | -0.6 | |
| Career | — | MLE | — | 2396 | 2146 | 433 | 77 | 14 | 26 | 205 | 703 | 14 | 123 | 21 | 202 | 276 | 287 | 563 | 85 | 284 | 29 | 9 | 253 | 58 | -14 | +2 | -2 | +4 | +8 | -0.3 | |
| / 162G | — | MLE | — | 650 | 582 | 118 | 21 | 4 | 7 | 56 | 191 | 4 | 33 | 6 | 203 | 277 | 289 | 566 | 86 | 286 | 29 | 9 | 253 | 58 | -26 | +3 | -4 | +7 | +14 | -0.5 | |
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 AAMontgomery Biscuits · 335 PAwOBA .337 → .276 (−61)K% 25.7% → 31.3%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 25.67% | ÷1.000 | ×1.220 | — | — | 31.32% |
| BB% (unintentional) /PA | 14.63% | ÷1.000 | ×0.680 | — | ×0.958 | 9.53% |
| HBP% /PA | 0.30% | — | ×0.840 | — | ×0.958 | 0.24% |
| Singles /BIP | 28.80% | ÷1.000 | ×0.920 | ×1.005 | ×0.958 | 25.51% |
| Doubles /BIP | 6.81% | ÷1.000 | ×0.910 | ×1.005 | ×0.958 | 5.97% |
| Triples /BIP | 0.00% | ÷1.000 | ×0.880 | ×1.005 | ×0.958 | 0.00% |
| Home runs /BIP | 3.14% | ÷1.000 | ×0.800 | — | ×0.958 | 2.41% |
Factors used: league row SL. Park (home-season share, regressed): no park row on file (treated as neutral) — applied at half strength. Age: age 29 vs a level average of 24.8 → −4.2% on BB/HBP/hit rates (4.2 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×1.005.
Result: wOBA .337 → .276; ISO .112 → .094; BABIP .360 → .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).
2025 AAARochester Red Wings · 199 PAwOBA .310 → .254 (−56)K% 21.6% → 25.2%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 21.61% | ÷1.028 | ×1.200 | — | — | 25.23% |
| BB% (unintentional) /PA | 10.55% | ÷0.978 | ×0.690 | — | ×0.992 | 7.39% |
| HBP% /PA | 0.50% | — | ×0.940 | — | ×0.992 | 0.47% |
| Singles /BIP | 25.56% | ÷0.987 | ×0.930 | ×0.970 | ×0.992 | 23.17% |
| Doubles /BIP | 3.01% | ÷1.000 | ×0.830 | ×0.970 | ×0.992 | 2.40% |
| Triples /BIP | 0.75% | ÷1.150 | ×0.970 | ×0.970 | ×0.992 | 0.61% |
| Home runs /BIP | 3.76% | ÷0.960 | ×0.700 | — | ×0.992 | 2.72% |
Factors used: league row International League. Park (home-season share, regressed): HR 92, 1B 97, 2B 100, 3B 130, K 106, BB 96 — applied at half strength. Age: age 28 vs a level average of 27.2 → −0.8% on BB/HBP/hit rates (0.8 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.970.
Result: wOBA .310 → .254; ISO .119 → .089; BABIP .305 → .269. 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).
2025 AAHarrisburg Senators · 36 PAwOBA .342 → .273 (−69)K% 30.6% → 37.4%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 30.56% | ÷0.997 | ×1.220 | — | — | 37.41% |
| BB% (unintentional) /PA | 2.78% | ÷0.967 | ×0.700 | — | ×0.968 | 1.95% |
| HBP% /PA | 2.78% | — | ×0.850 | — | ×0.968 | 2.29% |
| Singles /BIP | 21.74% | ÷1.009 | ×0.970 | — | ×0.968 | 20.24% |
| Doubles /BIP | 8.70% | ÷0.887 | ×0.860 | — | ×0.968 | 8.16% |
| Triples /BIP | 0.00% | ÷0.913 | ×0.950 | — | ×0.968 | 0.00% |
| Home runs /BIP | 8.70% | ÷0.963 | ×0.780 | — | ×0.968 | 6.82% |
Factors used: league row EL. Park (home-season share, regressed): HR 93, 1B 102, 2B 77, 3B 83, K 99, BB 93 — applied at half strength. Age: age 28 vs a level average of 24.8 → −3.2% on BB/HBP/hit rates (3.2 yr older than average).
Result: wOBA .342 → .273; ISO .235 → .177; BABIP .333 → .305. 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 AAHarrisburg Senators · 442 PAwOBA .270 → .235 (−35)K% 21.0% → 25.5%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 21.04% | ÷1.008 | ×1.220 | — | — | 25.46% |
| BB% (unintentional) /PA | 9.28% | ÷1.051 | ×0.700 | — | ×0.978 | 6.04% |
| HBP% /PA | 0.90% | — | ×0.850 | — | ×0.978 | 0.75% |
| Singles /BIP | 20.07% | ÷1.010 | ×0.970 | ×1.013 | ×0.978 | 19.09% |
| Doubles /BIP | 6.80% | ÷0.964 | ×0.860 | ×1.013 | ×0.978 | 6.01% |
| Triples /BIP | 1.02% | ÷0.915 | ×0.950 | ×1.013 | ×0.978 | 1.05% |
| Home runs /BIP | 1.02% | ÷0.990 | ×0.780 | — | ×0.978 | 0.79% |
Factors used: league row EL. Park (home-season share, regressed): HR 98, 1B 102, 2B 93, 3B 83, K 102, BB 110 — applied at half strength. Age: age 27 vs a level average of 24.8 → −2.2% on BB/HBP/hit rates (2.2 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×1.013.
Result: wOBA .270 → .235; ISO .090 → .081; BABIP .279 → .261. 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 AAHarrisburg Senators · 458 PAwOBA .312 → .256 (−56)K% 25.8% → 31.3%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 25.76% | ÷1.005 | ×1.220 | — | — | 31.29% |
| BB% (unintentional) /PA | 15.94% | ÷1.016 | ×0.700 | — | ×0.988 | 10.85% |
| HBP% /PA | 0.87% | — | ×0.850 | — | ×0.988 | 0.73% |
| Singles /BIP | 24.03% | ÷1.013 | ×0.970 | ×0.998 | ×0.988 | 22.69% |
| Doubles /BIP | 5.43% | ÷1.033 | ×0.860 | ×0.998 | ×0.988 | 4.46% |
| Triples /BIP | 1.16% | ÷0.935 | ×0.950 | ×0.998 | ×0.988 | 1.17% |
| Home runs /BIP | 2.33% | ÷1.115 | ×0.780 | — | ×0.988 | 1.61% |
Factors used: league row EL. Park (home-season share, regressed): HR 123, 1B 103, 2B 107, 3B 87, K 101, BB 103 — applied at half strength. Age: age 26 vs a level average of 24.8 → −1.2% on BB/HBP/hit rates (1.2 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.998.
Result: wOBA .312 → .256; ISO .101 → .081; BABIP .311 → .286. 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).
2022 AFredericksburg Nationals · 210 PAwOBA .364 → .290 (−74)K% 21.4% → 30.2%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 21.43% | ÷0.966 | ×1.360 | — | — | 30.17% |
| BB% (unintentional) /PA | 16.67% | ÷0.970 | ×0.690 | — | ×0.970 | 11.51% |
| HBP% /PA | 0.00% | — | ×0.780 | — | ×0.970 | 0.00% |
| Singles /BIP | 24.80% | ÷0.986 | ×0.920 | ×0.990 | ×0.970 | 22.22% |
| Doubles /BIP | 7.20% | ÷0.933 | ×0.830 | ×0.990 | ×0.970 | 6.15% |
| Triples /BIP | 2.40% | ÷0.910 | ×0.910 | ×0.990 | ×0.970 | 2.30% |
| Home runs /BIP | 3.20% | ÷1.074 | ×0.800 | — | ×0.970 | 2.31% |
Factors used: level-wide A factors (no league-specific row for this league/era). Park (home-season share, regressed): HR 115, 1B 97, 2B 87, 3B 82, K 93, BB 94 — applied at half strength. Age: age 25 vs a level average of 22.0 → −3.0% on BB/HBP/hit rates (3.0 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.990.
Result: wOBA .364 → .290; ISO .159 → .127; BABIP .347 → .306. 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).
2021 A+Wilmington Blue Rocks · 184 PAwOBA .241 → .182 (−59)K% 26.6% → 37.2%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 26.63% | ÷0.965 | ×1.350 | — | — | 37.24% |
| BB% (unintentional) /PA | 8.70% | ÷0.984 | ×0.710 | — | ×0.988 | 6.20% |
| HBP% /PA | 0.00% | — | ×0.810 | — | ×0.988 | 0.00% |
| Singles /BIP | 16.95% | ÷0.997 | ×0.910 | ×0.964 | ×0.988 | 14.73% |
| Doubles /BIP | 6.78% | ÷0.916 | ×0.830 | ×0.964 | ×0.988 | 5.85% |
| Triples /BIP | 0.85% | ÷0.900 | ×0.820 | ×0.964 | ×0.988 | 0.74% |
| Home runs /BIP | 1.69% | ÷0.906 | ×0.830 | — | ×0.988 | 1.53% |
Factors used: level-wide A+ factors (no league-specific row for this league/era). Park (home-season share, regressed): HR 81, 1B 99, 2B 83, 3B 80, K 93, BB 97 — applied at half strength. Age: age 24 vs a level average of 22.8 → −1.2% on BB/HBP/hit rates (1.2 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.964.
Result: wOBA .241 → .182; ISO .096 → .074; BABIP .248 → .214. 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).
2021 AFredericksburg Nationals · 166 PAwOBA .318 → .246 (−73)K% 19.3% → 27.1%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 19.28% | ÷0.967 | ×1.360 | — | — | 27.10% |
| BB% (unintentional) /PA | 16.87% | ÷1.100 | ×0.690 | — | ×0.980 | 10.37% |
| HBP% /PA | 0.60% | — | ×0.780 | — | ×0.980 | 0.46% |
| Singles /BIP | 23.08% | ÷1.006 | ×0.920 | ×0.986 | ×0.980 | 20.41% |
| Doubles /BIP | 4.81% | ÷0.942 | ×0.830 | ×0.986 | ×0.980 | 4.10% |
| Triples /BIP | 1.92% | ÷0.901 | ×0.910 | ×0.986 | ×0.980 | 1.88% |
| Home runs /BIP | 0.96% | ÷1.159 | ×0.800 | — | ×0.980 | 0.65% |
Factors used: level-wide A factors (no league-specific row for this league/era). Park (home-season share, regressed): HR 132, 1B 101, 2B 88, 3B 80, K 93, BB 120 — applied at half strength. Age: age 24 vs a level average of 22.0 → −2.0% on BB/HBP/hit rates (2.0 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.986.
Result: wOBA .318 → .246; ISO .088 → .074; BABIP .301 → .266. 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).