Peyton Graham
SS Erie SeaWolves| Year | Age | Lvl / Team | PA | AVG/OBP/SLG | HR | SB | wRC+ | WAR | MLE AVG/OBP/SLG |
|---|---|---|---|---|---|---|---|---|---|
| 2024 | 23 | A+/A/INTL2 orgs | 266 | .193/.336/.271 | 2 | 10 | 44 | — | .163/.281/.227 |
| 2025 | 24 | A+DET | 409 | .283/.367/.423 | 7 | 20 | 72 | — | .225/.288/.338 |
| 2026 | 25 | AADET | 510 | .290/.401/.429 | 9 | 66 | 101 | — | .259/.347/.372 |
| 2027PROJMLE | 26 | MLBDET | 3 | .222/.302/.323 | 0 | 0 | 82 | 0.0 | |
| 2028PROJ33% MLB | 27 | MLBDET | 56 | .222/.302/.325 | 1 | 3 | 82 | 0.1 | |
| 2029PROJ50% MLB | 28 | MLBDET | 104 | .221/.301/.324 | 1 | 6 | 82 | 0.2 |
Tools · ContractCON 50 / POW 40
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) | |||||||||||||||||||||||||||||||
| 2022 | 21 | A | Lakeland Flying Tigers | — | 113 | 100 | 27 | 5 | 1 | 1 | 10 | 29 | 2 | 7 | 1 | 270 | 348 | 370 | 718 | 100 | 366 | 26 | 9 | 324 | 49 | — | — | — | — | — | — |
| 2023 | 22 | A | Lakeland Flying Tigers | — | 239 | 203 | 47 | 11 | 1 | 4 | 28 | 53 | 6 | 15 | 3 | 232 | 342 | 355 | 696 | 123 | 291 | 22 | 12 | 318 | 45 | — | — | — | — | — | — |
| 2024 | 23 | A+ | West Michigan Whitecaps | — | 202 | 162 | 30 | 7 | 0 | 1 | 31 | 46 | 8 | 8 | 2 | 185 | 343 | 247 | 590 | 62 | 250 | 23 | 15 | 290 | 40 | — | — | — | — | — | — |
| 2024 | 23 | A | Lakeland Flying Tigers | — | 34 | 28 | 7 | 1 | 0 | 1 | 6 | 5 | 0 | 2 | 0 | 250 | 382 | 393 | 775 | 143 | 273 | 15 | 18 | 355 | 68 | — | — | — | — | — | — |
| 2024 | 23 | INTL | Scottsdale Scorpions | — | 30 | 28 | 5 | 1 | 1 | 0 | 2 | 11 | 0 | 0 | 0 | 179 | 233 | 286 | 519 | 107 | 294 | 37 | 7 | 234 | 44 | — | — | — | — | — | — |
| 2025 | 24 | A+ | West Michigan Whitecaps | — | 409 | 357 | 101 | 23 | 3 | 7 | 40 | 85 | 8 | 20 | 2 | 283 | 367 | 423 | 790 | 140 | 352 | 21 | 10 | 353 | 72 | — | — | — | — | — | — |
| 2026 | 25 | AA | Erie SeaWolves | — | 510 | 424 | 123 | 22 | 5 | 9 | 64 | 106 | 15 | 66 | 7 | 290 | 401 | 429 | 830 | 139 | 362 | 21 | 13 | 371 | 101 | — | — | — | — | — | — |
| ▸ Career — adjusted (every ACTUAL line translated to park/league-neutral MLB equivalents) | |||||||||||||||||||||||||||||||
| 2022 | 21 | A MLE | Lakeland Flying Tigers | — | 113 | 103 | 22 | 4 | 1 | 1 | 7 | 40 | 2 | 7 | 1 | 214 | 277 | 301 | 578 | 87 | 315 | 35 | 6 | 241 | 49 | — | — | — | — | — | — |
| 2023 | 22 | A MLE | Lakeland Flying Tigers | — | 239 | 213 | 39 | 8 | 1 | 3 | 18 | 74 | 6 | 15 | 3 | 183 | 266 | 272 | 538 | 89 | 253 | 31 | 8 | 235 | 45 | — | — | — | — | — | — |
| 2024 | 23 | A+ MLE | West Michigan Whitecaps | — | 202 | 172 | 26 | 6 | 0 | 1 | 21 | 61 | 8 | 8 | 2 | 151 | 274 | 203 | 477 | 52 | 223 | 30 | 10 | 227 | 40 | — | — | — | — | — | — |
| 2024 | 23 | A MLE | Lakeland Flying Tigers | — | 34 | 30 | 7 | 1 | 0 | 1 | 4 | 7 | 0 | 2 | 0 | 233 | 324 | 367 | 690 | 133 | 236 | 21 | 12 | 268 | 68 | — | — | — | — | — | — |
| 2025 | 24 | A+ MLE | West Michigan Whitecaps | — | 409 | 373 | 84 | 18 | 3 | 6 | 25 | 112 | 8 | 20 | 2 | 225 | 288 | 338 | 626 | 113 | 299 | 27 | 6 | 275 | 72 | — | — | — | — | — | — |
| 2026 | 25 | AA MLE | Erie SeaWolves | — | 510 | 444 | 115 | 19 | 5 | 7 | 45 | 130 | 15 | 66 | 7 | 259 | 347 | 372 | 719 | 113 | 335 | 25 | 9 | 317 | 101 | — | — | — | — | — | — |
| 2022 | 21 | A MLE | Lakeland Flying Tigers | — | 113 | 103 | 22 | 4 | 1 | 1 | 7 | 40 | 2 | 7 | 1 | 214 | 277 | 301 | 578 | 87 | 333 | 35 | 6 | 241 | 49 | — | — | — | — | — | — |
| 2022 | 21 | A RAW | Lakeland Flying Tigers | — | 113 | 100 | 27 | 5 | 1 | 1 | 10 | 29 | 2 | 7 | 1 | 270 | 348 | 370 | 718 | 100 | 366 | 26 | 9 | 324 | 49 | — | — | — | — | — | — |
| 2023 | 22 | A MLE | Lakeland Flying Tigers | — | 239 | 213 | 39 | 8 | 1 | 3 | 18 | 74 | 6 | 15 | 3 | 183 | 266 | 272 | 538 | 89 | 261 | 31 | 8 | 235 | 45 | — | — | — | — | — | — |
| 2023 | 22 | A RAW | Lakeland Flying Tigers | — | 239 | 203 | 47 | 11 | 1 | 4 | 28 | 53 | 6 | 15 | 3 | 232 | 342 | 355 | 696 | 123 | 291 | 22 | 12 | 318 | 45 | — | — | — | — | — | — |
| 2024 | 23 | A+ MLE | 3 teams | — | 266 | 228 | 37 | 8 | 0 | 2 | 29 | 76 | 8 | 10 | 2 | 162 | 279 | 224 | 503 | 61 | 232 | 29 | 11 | 233 | 44 | — | — | — | — | — | — |
| 2024 | 23 | A+ RAW | 3 teams | — | 266 | 218 | 42 | 9 | 1 | 2 | 39 | 62 | 8 | 10 | 2 | 193 | 336 | 271 | 606 | 78 | 258 | 23 | 15 | 292 | 44 | — | — | — | — | — | — |
| 2025 | 24 | A+ MLE | West Michigan Whitecaps | — | 409 | 373 | 84 | 18 | 3 | 6 | 25 | 112 | 8 | 20 | 2 | 225 | 288 | 338 | 626 | 113 | 304 | 27 | 6 | 275 | 72 | — | — | — | — | — | — |
| 2025 | 24 | A+ RAW | West Michigan Whitecaps | — | 409 | 357 | 101 | 23 | 3 | 7 | 40 | 85 | 8 | 20 | 2 | 283 | 367 | 423 | 790 | 140 | 352 | 21 | 10 | 353 | 72 | — | — | — | — | — | — |
| 2026 | 25 | AA MLE | Erie SeaWolves | — | 510 | 444 | 115 | 19 | 5 | 7 | 45 | 130 | 15 | 66 | 7 | 259 | 347 | 372 | 719 | 113 | 345 | 25 | 9 | 317 | 101 | — | — | — | — | — | — |
| 2026 | 25 | AA RAW | Erie SeaWolves | — | 510 | 424 | 123 | 22 | 5 | 9 | 64 | 106 | 15 | 66 | 7 | 290 | 401 | 429 | 830 | 139 | 362 | 21 | 13 | 371 | 101 | — | — | — | — | — | — |
| 2022 | 21 | A MLE | Lakeland Flying Tigers | — | 113 | 103 | 22 | 4 | 1 | 1 | 7 | 40 | 2 | 7 | 1 | 214 | 277 | 301 | 578 | 87 | 315 | 35 | 6 | 241 | 49 | — | — | — | — | — | — |
| 2023 | 22 | A MLE | Lakeland Flying Tigers | — | 239 | 213 | 39 | 8 | 1 | 3 | 18 | 74 | 6 | 15 | 3 | 183 | 266 | 272 | 538 | 89 | 253 | 31 | 8 | 235 | 45 | — | — | — | — | — | — |
| 2024 | 23 | A+ MLE | 3 teams | — | 266 | 227 | 37 | 8 | 0 | 2 | 29 | 76 | 8 | 10 | 2 | 163 | 279 | 225 | 504 | 62 | 225 | 29 | 11 | 233 | 44 | — | — | — | — | — | — |
| 2025 | 24 | A+ MLE | West Michigan Whitecaps | — | 409 | 373 | 84 | 18 | 3 | 6 | 25 | 112 | 8 | 20 | 2 | 225 | 288 | 338 | 626 | 113 | 299 | 27 | 6 | 275 | 72 | — | — | — | — | — | — |
| 2026 | 25 | AA MLE | Erie SeaWolves | — | 510 | 445 | 115 | 19 | 5 | 7 | 45 | 130 | 15 | 66 | 7 | 258 | 347 | 371 | 718 | 112 | 335 | 25 | 9 | 317 | 101 | — | — | — | — | — | — |
| ▸ Model inputs — neutral MLE (past 3 seasons) | |||||||||||||||||||||||||||||||
| 2024 | 23 | A+ MLE | 3 teams | — | 266 | 227 | 37 | 8 | 0 | 2 | 29 | 76 | 8 | 10 | 2 | 163 | 279 | 225 | 504 | 62 | 225 | 29 | 11 | 233 | 44 | — | — | — | — | — | — |
| 2025 | 24 | A+ MLE | West Michigan Whitecaps | — | 409 | 373 | 84 | 18 | 3 | 6 | 25 | 112 | 8 | 20 | 2 | 225 | 288 | 338 | 626 | 113 | 299 | 27 | 6 | 275 | 72 | — | — | — | — | — | — |
| 2026 | 25 | AA MLE | Erie SeaWolves | — | 510 | 445 | 115 | 19 | 5 | 7 | 45 | 130 | 15 | 66 | 7 | 258 | 347 | 371 | 718 | 112 | 335 | 25 | 9 | 317 | 101 | — | — | — | — | — | — |
| ▸ 2027 season | |||||||||||||||||||||||||||||||
| ▸ 2027 — full MLE projection (neutral park, full availability) | |||||||||||||||||||||||||||||||
| 2027 | 26 | MLB MLE | DET | 2% | 380 | 338 | 76 | 14 | 3 | 5 | 31 | 98 | 8 | 24 | 3 | 225 | 305 | 330 | 636 | 105 | 298 | 26 | 8 | 289 | 82 | -8 | +4 | +0 | +4 | +8 | 0.4 |
| ▸ 2027 — real world (MLB) | |||||||||||||||||||||||||||||||
| 2027 | 26 | MLB CTX | DET | 2% | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 222 | 302 | 323 | 625 | 102 | 294 | 33 | 0 | 285 | 82 | -0 | +0 | +0 | +0 | +0 | 0.0 |
| ▸ Career projection (2028+) — MLB context, MLB playing time (PA × MLB%) | |||||||||||||||||||||||||||||||
| 2028 | 27 | MLB MLE | DET | 33% | 167 | 148 | 33 | 6 | 1 | 2 | 14 | 43 | 3 | 10 | 1 | 225 | 305 | 332 | 637 | 106 | 298 | 26 | 8 | 290 | 82 | -4 | +2 | +0 | +2 | +4 | 0.4 |
| 2029 | 28 | MLB MLE | DET | 50% | 209 | 186 | 42 | 8 | 1 | 3 | 17 | 54 | 4 | 12 | 1 | 225 | 304 | 331 | 635 | 106 | 296 | 26 | 8 | 289 | 82 | -5 | +2 | -1 | +2 | +5 | 0.4 |
| 2028 | 27 | MLB CTX | DET | 33% | 56 | 50 | 11 | 2 | 0 | 1 | 5 | 14 | 1 | 3 | 0 | 222 | 302 | 325 | 627 | 103 | 293 | 25 | 9 | 286 | 82 | -1 | +1 | +0 | +1 | +1 | 0.1 |
| 2029 | 28 | MLB CTX | DET | 50% | 104 | 93 | 21 | 4 | 1 | 1 | 8 | 27 | 2 | 6 | 1 | 221 | 301 | 324 | 625 | 103 | 292 | 26 | 8 | 285 | 82 | -2 | +1 | -0 | +1 | +2 | 0.2 |
| ▸ Career Totals | |||||||||||||||||||||||||||||||
| ▸ Career totals — MLB only (actual + projected) | |||||||||||||||||||||||||||||||
| Career | — | A+C | — | 160 | 143 | 32 | 6 | 1 | 2 | 13 | 41 | 3 | 9 | 1 | 224 | 302 | 322 | 624 | 98 | 297 | 26 | 8 | 285 | 74 | -3 | +1 | -0 | +2 | +3 | 0.3 | |
| / 162G | — | A+C | — | 650 | 581 | 129 | 24 | 4 | 8 | 53 | 167 | 12 | 37 | 4 | 222 | 300 | 318 | 619 | 96 | 295 | 26 | 8 | 285 | 74 | -14 | +6 | -1 | +7 | +14 | 1.2 | |
| Career | — | MLE | — | 2068 | 1833 | 403 | 77 | 13 | 26 | 168 | 569 | 49 | 150 | 18 | 220 | 302 | 319 | 621 | 99 | 301 | 28 | 8 | 277 | 74 | -11 | +5 | -1 | +6 | +12 | 1.0 | |
| / 162G | — | MLE | — | 650 | 576 | 126 | 24 | 4 | 8 | 53 | 179 | 15 | 47 | 6 | 219 | 301 | 316 | 617 | 97 | 299 | 28 | 8 | 277 | 74 | -14 | +6 | -1 | +7 | +14 | 1.3 | |
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 AAErie SeaWolves · 510 PAwOBA .367 → .317 (−50)K% 20.8% → 25.4%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 20.78% | ÷1.000 | ×1.220 | — | — | 25.36% |
| BB% (unintentional) /PA | 12.55% | ÷1.000 | ×0.700 | — | ×0.998 | 8.77% |
| HBP% /PA | 2.94% | — | ×0.850 | — | ×0.998 | 2.49% |
| Singles /BIP | 27.36% | ÷1.000 | ×0.970 | ×0.985 | ×0.998 | 26.10% |
| Doubles /BIP | 6.92% | ÷1.000 | ×0.860 | ×0.985 | ×0.998 | 5.85% |
| Triples /BIP | 1.57% | ÷1.000 | ×0.950 | ×0.985 | ×0.998 | 1.47% |
| Home runs /BIP | 2.83% | ÷1.000 | ×0.780 | — | ×0.998 | 2.20% |
Factors used: league row EL. Park (home-season share, regressed): no park row on file (treated as neutral) — applied at half strength. Age: age 25 vs a level average of 24.8 → −0.2% on BB/HBP/hit rates (0.2 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.985.
Result: wOBA .367 → .317; ISO .139 → .117; BABIP .362 → .335. 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 A+West Michigan Whitecaps · 409 PAwOBA .345 → .275 (−71)K% 20.8% → 27.5%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 20.78% | ÷0.960 | ×1.270 | — | — | 27.49% |
| BB% (unintentional) /PA | 9.78% | ÷1.106 | ×0.710 | — | ×0.988 | 6.20% |
| HBP% /PA | 1.96% | — | ×0.790 | — | ×0.988 | 1.53% |
| Singles /BIP | 25.00% | ÷1.027 | ×0.920 | ×0.971 | ×0.988 | 21.48% |
| Doubles /BIP | 8.46% | ÷0.948 | ×0.810 | ×0.971 | ×0.988 | 6.93% |
| Triples /BIP | 1.10% | ÷0.900 | ×0.850 | ×0.971 | ×0.988 | 1.00% |
| Home runs /BIP | 2.57% | ÷0.850 | ×0.800 | — | ×0.988 | 2.39% |
Factors used: league row Midwest League. Park (home-season share, regressed): HR 70, 1B 105, 2B 90, 3B 80, K 92, BB 121 — 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 ×0.971.
Result: wOBA .345 → .275; ISO .140 → .120; BABIP .352 → .299. 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 A+West Michigan Whitecaps · 202 PAwOBA .285 → .227 (−58)K% 22.8% → 30.2%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 22.77% | ÷0.957 | ×1.270 | — | — | 30.23% |
| BB% (unintentional) /PA | 15.35% | ÷1.026 | ×0.710 | — | ×0.998 | 10.60% |
| HBP% /PA | 3.96% | — | ×0.790 | — | ×0.998 | 3.12% |
| Singles /BIP | 18.97% | ÷1.021 | ×0.920 | ×0.991 | ×0.998 | 16.91% |
| Doubles /BIP | 6.03% | ÷0.892 | ×0.810 | ×0.991 | ×0.998 | 5.42% |
| Triples /BIP | 0.00% | ÷0.900 | ×0.850 | ×0.991 | ×0.998 | 0.00% |
| Home runs /BIP | 0.86% | ÷0.889 | ×0.800 | — | ×0.998 | 0.77% |
Factors used: league row Midwest League. Park (home-season share, regressed): HR 78, 1B 104, 2B 78, 3B 80, K 91, BB 105 — applied at half strength. Age: age 23 vs a level average of 22.8 → −0.2% on BB/HBP/hit rates (0.2 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.991.
Result: wOBA .285 → .227; ISO .062 → .054; BABIP .250 → .223. 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 ALakeland Flying Tigers · 34 PAwOBA .347 → .268 (−79)K% 14.7% → 19.5%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 14.71% | ÷1.028 | ×1.360 | — | — | 19.46% |
| BB% (unintentional) /PA | 17.65% | ÷1.061 | ×0.690 | — | ×0.990 | 11.36% |
| HBP% /PA | 0.00% | — | ×0.780 | — | ×0.990 | 0.00% |
| Singles /BIP | 21.74% | ÷0.980 | ×0.920 | — | ×0.990 | 20.21% |
| Doubles /BIP | 4.35% | ÷1.351 | ×0.830 | — | ×0.990 | 2.64% |
| Triples /BIP | 0.00% | ÷1.106 | ×0.910 | — | ×0.990 | 0.00% |
| Home runs /BIP | 4.35% | ÷1.099 | ×0.800 | — | ×0.990 | 3.13% |
Factors used: level-wide A factors (no league-specific row for this league/era). Park (home-season share, regressed): HR 120, 1B 96, 2B 170, 3B 121, K 106, BB 112 — applied at half strength. Age: age 23 vs a level average of 22.0 → −1.0% on BB/HBP/hit rates (1.0 yr older than average).
Result: wOBA .347 → .268; ISO .143 → .101; BABIP .273 → .236. 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 ALakeland Flying Tigers · 239 PAwOBA .313 → .235 (−78)K% 22.2% → 30.9%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 22.18% | ÷0.975 | ×1.360 | — | — | 30.92% |
| BB% (unintentional) /PA | 11.72% | ÷1.089 | ×0.690 | — | — | 7.43% |
| HBP% /PA | 2.51% | — | ×0.780 | — | — | 1.96% |
| Singles /BIP | 20.67% | ÷0.957 | ×0.920 | ×0.961 | — | 19.10% |
| Doubles /BIP | 7.33% | ÷1.056 | ×0.830 | ×0.961 | — | 5.54% |
| Triples /BIP | 0.67% | ÷1.020 | ×0.910 | ×0.961 | — | 0.57% |
| Home runs /BIP | 2.67% | ÷1.216 | ×0.800 | — | — | 1.75% |
Factors used: level-wide A factors (no league-specific row for this league/era). Park (home-season share, regressed): HR 143, 1B 91, 2B 111, 3B 104, K 95, BB 118 — applied at half strength. Age: age 22 vs a level average of 22.0 → +0.0% on BB/HBP/hit rates (0.0 yr younger than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.961.
Result: wOBA .313 → .235; ISO .123 → .084; BABIP .291 → .253. 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 ALakeland Flying Tigers · 113 PAwOBA .319 → .241 (−78)K% 25.7% → 35.5%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 25.66% | ÷0.982 | ×1.360 | — | — | 35.55% |
| BB% (unintentional) /PA | 8.85% | ÷0.998 | ×0.690 | — | ×1.015 | 6.21% |
| HBP% /PA | 1.77% | — | ×0.780 | — | ×1.015 | 1.40% |
| Singles /BIP | 28.17% | ÷1.009 | ×0.920 | ×0.950 | ×1.015 | 24.78% |
| Doubles /BIP | 7.04% | ÷0.974 | ×0.830 | ×0.950 | ×1.015 | 5.79% |
| Triples /BIP | 1.41% | ÷1.039 | ×0.910 | ×0.950 | ×1.015 | 1.19% |
| Home runs /BIP | 1.41% | ÷1.279 | ×0.800 | — | ×1.015 | 0.89% |
Factors used: level-wide A factors (no league-specific row for this league/era). Park (home-season share, regressed): HR 156, 1B 102, 2B 95, 3B 108, K 96, BB 100 — 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 ×0.950.
Result: wOBA .319 → .241; ISO .100 → .070; BABIP .366 → .315. 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 — .