Juan Montero
C Greenville Drive| Year | Age | Lvl / Team | PA | AVG/OBP/SLG | HR | SB | wRC+ | WAR | MLE AVG/OBP/SLG |
|---|---|---|---|---|---|---|---|---|---|
| 2023 | 21 | ASalem Red Sox | 81 | .247/.321/.342 | 0 | 0 | 38 | — | .187/.247/.253 |
| 2024 | 22 | A+/A/INTL3 orgs | 194 | .205/.346/.295 | 1 | 3 | 46 | — | .155/.271/.235 |
| 2025 | 23 | A+BOS | 88 | .203/.330/.230 | 0 | 0 | 14 | — | .150/.227/.162 |
| 2027PROJMLE | 25 | MLBBOS | 200 | .206/.278/.308 | 3 | 1 | 67 | 0.0 | |
| 2028PROJ30% MLB | 26 | MLBBOS | 24 | .215/.286/.325 | 0 | 0 | 70 | 0.0 | |
| 2029PROJ42% MLB | 27 | MLBBOS | 57 | .216/.287/.327 | 1 | 0 | 71 | 0.0 |
Tools · Contract
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. Catcher framing: only 2027 Statcast framing is modeled (Baseball Savant server-caches the leaderboard to the current season); prior-year framing is unmodeled — projections for established framers may run 1-3 WAR low.
| 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 | 19 | ROK | FCL Red Sox | — | 50 | 39 | 7 | 3 | 0 | 1 | 11 | 13 | 0 | 1 | 1 | 179 | 360 | 333 | 693 | 154 | 240 | 26 | 22 | 326 | 33 | — | — | — | — | — | — |
| 2022 | 20 | ROK | FCL Red Sox | — | 39 | 31 | 8 | 5 | 0 | 0 | 3 | 12 | 4 | 0 | 0 | 258 | 395 | 419 | 814 | 161 | 400 | 31 | 8 | 363 | 36 | — | — | — | — | — | — |
| 2022 | 20 | INTL | Leones de Ponce | — | 28 | 25 | 3 | 1 | 0 | 0 | 2 | 8 | 1 | 1 | 0 | 120 | 214 | 160 | 374 | 40 | 176 | 29 | 7 | 187 | 12 | — | — | — | — | — | — |
| 2023 | 21 | A | Salem Red Sox | — | 81 | 73 | 18 | 7 | 0 | 0 | 6 | 20 | 2 | 0 | 2 | 247 | 321 | 342 | 663 | 96 | 340 | 25 | 7 | 304 | 38 | — | — | — | — | — | — |
| 2024 | 22 | A+ | Greenville Drive | — | 59 | 48 | 9 | 3 | 1 | 0 | 8 | 17 | 1 | 0 | 0 | 188 | 316 | 292 | 607 | 104 | 273 | 29 | 14 | 276 | 28 | — | — | — | — | — | — |
| 2024 | 22 | A | Salem Red Sox | — | 117 | 92 | 19 | 4 | 1 | 1 | 16 | 30 | 7 | 2 | 1 | 207 | 362 | 304 | 666 | 98 | 290 | 26 | 14 | 315 | 50 | — | — | — | — | — | — |
| 2024 | 22 | INTL | Leones de Ponce | — | 18 | 16 | 4 | 0 | 0 | 0 | 1 | 7 | 1 | 1 | 0 | 250 | 333 | 250 | 583 | 444 | 39 | 6 | 281 | 76 | — | — | — | — | — | — | |
| 2025 | 23 | A+ | Greenville Drive | — | 88 | 74 | 15 | 2 | 0 | 0 | 13 | 25 | 1 | 0 | 0 | 203 | 330 | 230 | 559 | 27 | 306 | 28 | 15 | 274 | 14 | — | — | — | — | — | — |
| ▸ Career — adjusted (every ACTUAL line translated to park/league-neutral MLB equivalents) | |||||||||||||||||||||||||||||||
| 2021 | 19 | ROK MLE | FCL Red Sox | — | 50 | 43 | 5 | 2 | 0 | 1 | 7 | 19 | 0 | 1 | 1 | 116 | 240 | 233 | 473 | 116 | 184 | 38 | 14 | 217 | 33 | — | — | — | — | — | — |
| 2022 | 20 | ROK MLE | FCL Red Sox | — | 39 | 32 | 5 | 3 | 0 | 0 | 2 | 17 | 4 | 0 | 0 | 156 | 289 | 250 | 539 | 94 | 265 | 44 | 5 | 222 | 36 | — | — | — | — | — | — |
| 2023 | 21 | A MLE | Salem Red Sox | — | 81 | 75 | 14 | 5 | 0 | 0 | 4 | 28 | 2 | 0 | 2 | 187 | 247 | 253 | 500 | 67 | 292 | 35 | 5 | 224 | 38 | — | — | — | — | — | — |
| 2024 | 22 | A+ MLE | Greenville Drive | — | 59 | 51 | 7 | 2 | 1 | 0 | 5 | 23 | 1 | 0 | 0 | 137 | 228 | 216 | 444 | 78 | 228 | 39 | 8 | 210 | 28 | — | — | — | — | — | — |
| 2024 | 22 | A MLE | Salem Red Sox | — | 117 | 98 | 16 | 3 | 1 | 1 | 11 | 43 | 7 | 2 | 1 | 163 | 293 | 245 | 538 | 82 | 264 | 37 | 9 | 242 | 50 | — | — | — | — | — | — |
| 2025 | 23 | A+ MLE | Greenville Drive | — | 88 | 80 | 12 | 1 | 0 | 0 | 7 | 35 | 1 | 0 | 0 | 150 | 227 | 163 | 390 | 13 | 265 | 40 | 8 | 189 | 14 | — | — | — | — | — | — |
| 2021 | 19 | ROK MLE | FCL Red Sox | — | 50 | 43 | 5 | 2 | 0 | 1 | 7 | 19 | 0 | 1 | 1 | 116 | 240 | 233 | 473 | 116 | 174 | 38 | 14 | 217 | 33 | — | — | — | — | — | — |
| 2021 | 19 | ROK RAW | FCL Red Sox | — | 50 | 39 | 7 | 3 | 0 | 1 | 11 | 13 | 0 | 1 | 1 | 179 | 360 | 333 | 693 | 154 | 240 | 26 | 22 | 326 | 33 | — | — | — | — | — | — |
| 2022 | 20 | ROK MLE | 2 teams | — | 67 | 58 | 9 | 5 | 0 | 0 | 3 | 30 | 5 | 1 | 0 | 155 | 258 | 241 | 499 | 86 | 310 | 45 | 4 | 222 | 36 | — | — | — | — | — | — |
| 2022 | 20 | ROK RAW | 2 teams | — | 67 | 56 | 11 | 6 | 0 | 0 | 5 | 20 | 5 | 1 | 0 | 196 | 318 | 304 | 622 | 107 | 297 | 30 | 7 | 289 | 36 | — | — | — | — | — | — |
| 2023 | 21 | A MLE | Salem Red Sox | — | 81 | 75 | 14 | 5 | 0 | 0 | 4 | 28 | 2 | 0 | 2 | 187 | 247 | 253 | 500 | 67 | 298 | 35 | 5 | 224 | 38 | — | — | — | — | — | — |
| 2023 | 21 | A RAW | Salem Red Sox | — | 81 | 73 | 18 | 7 | 0 | 0 | 6 | 20 | 2 | 0 | 2 | 247 | 321 | 342 | 663 | 96 | 340 | 25 | 7 | 304 | 38 | — | — | — | — | — | — |
| 2024 | 22 | A MLE | 3 teams | — | 194 | 164 | 26 | 6 | 2 | 1 | 18 | 73 | 9 | 3 | 1 | 159 | 277 | 238 | 515 | 79 | 269 | 38 | 9 | 231 | 43 | — | — | — | — | — | — |
| 2024 | 22 | A RAW | 3 teams | — | 194 | 156 | 32 | 7 | 2 | 1 | 25 | 54 | 9 | 3 | 1 | 205 | 346 | 295 | 640 | 90 | 298 | 28 | 13 | 300 | 43 | — | — | — | — | — | — |
| 2025 | 23 | A+ MLE | Greenville Drive | — | 88 | 80 | 12 | 1 | 0 | 0 | 7 | 35 | 1 | 0 | 0 | 150 | 227 | 163 | 390 | 13 | 267 | 40 | 8 | 189 | 14 | — | — | — | — | — | — |
| 2025 | 23 | A+ RAW | Greenville Drive | — | 88 | 74 | 15 | 2 | 0 | 0 | 13 | 25 | 1 | 0 | 0 | 203 | 330 | 230 | 559 | 27 | 306 | 28 | 15 | 274 | 14 | — | — | — | — | — | — |
| 2021 | 19 | ROK MLE | FCL Red Sox | — | 50 | 43 | 5 | 2 | 0 | 1 | 7 | 19 | 0 | 1 | 1 | 116 | 240 | 233 | 473 | 116 | 184 | 38 | 14 | 217 | 33 | — | — | — | — | — | — |
| 2022 | 20 | ROK MLE | 2 teams | — | 67 | 59 | 9 | 5 | 0 | 0 | 3 | 30 | 5 | 1 | 0 | 153 | 258 | 237 | 495 | 85 | 265 | 45 | 4 | 222 | 36 | — | — | — | — | — | — |
| 2023 | 21 | A MLE | Salem Red Sox | — | 81 | 75 | 14 | 5 | 0 | 0 | 4 | 28 | 2 | 0 | 2 | 187 | 247 | 253 | 500 | 67 | 292 | 35 | 5 | 224 | 38 | — | — | — | — | — | — |
| 2024 | 22 | A MLE | 3 teams | — | 194 | 165 | 26 | 6 | 2 | 1 | 18 | 73 | 9 | 3 | 1 | 158 | 277 | 236 | 514 | 79 | 252 | 38 | 9 | 231 | 43 | — | — | — | — | — | — |
| 2025 | 23 | A+ MLE | Greenville Drive | — | 88 | 80 | 12 | 1 | 0 | 0 | 7 | 35 | 1 | 0 | 0 | 150 | 227 | 163 | 390 | 13 | 265 | 40 | 8 | 189 | 14 | — | — | — | — | — | — |
| ▸ Model inputs — neutral MLE (past 3 seasons) | |||||||||||||||||||||||||||||||
| 2024 | 22 | A MLE | 3 teams | — | 194 | 165 | 26 | 6 | 2 | 1 | 18 | 73 | 9 | 3 | 1 | 158 | 277 | 236 | 514 | 79 | 252 | 38 | 9 | 231 | 43 | — | — | — | — | — | — |
| 2025 | 23 | A+ MLE | Greenville Drive | — | 88 | 80 | 12 | 1 | 0 | 0 | 7 | 35 | 1 | 0 | 0 | 150 | 227 | 163 | 390 | 13 | 265 | 40 | 8 | 189 | 14 | — | — | — | — | — | — |
| ▸ 2027 season | |||||||||||||||||||||||||||||||
| ▸ 2027 — full MLE projection (neutral park, full availability) | |||||||||||||||||||||||||||||||
| 2027 | 25 | MLB MLE | BOS | 0% | 200 | 180 | 37 | 7 | 1 | 3 | 15 | 60 | 3 | 1 | 0 | 206 | 278 | 308 | 586 | 102 | 288 | 30 | 8 | 267 | 67 | -8 | +0 | +0 | +4 | +4 | 0.0 |
| ▸ Career projection (2028+) — MLB context, MLB playing time (PA × MLB%) | |||||||||||||||||||||||||||||||
| 2028 | 26 | MLB MLE | BOS | 30% | 80 | 73 | 14 | 3 | 0 | 1 | 6 | 24 | 1 | 0 | 0 | 209 | 281 | 317 | 598 | 108 | 288 | 30 | 8 | 271 | 70 | -3 | +0 | +0 | +1 | +2 | 0.0 |
| 2029 | 27 | MLB MLE | BOS | 42% | 136 | 122 | 26 | 5 | 1 | 2 | 11 | 40 | 2 | 0 | 0 | 210 | 282 | 319 | 601 | 109 | 287 | 29 | 8 | 272 | 71 | -5 | +0 | +0 | +2 | +3 | 0.1 |
| 2030 | 28 | MLB MLE | BOS | 48% | 176 | 158 | 33 | 6 | 1 | 3 | 14 | 52 | 2 | 0 | 0 | 210 | 282 | 319 | 600 | 109 | 286 | 30 | 8 | 272 | 70 | -6 | +0 | -1 | +3 | +4 | 0.0 |
| 2028 | 26 | MLB CTX | BOS | 30% | 24 | 22 | 4 | 1 | 0 | 0 | 2 | 7 | 0 | 0 | 0 | 215 | 286 | 325 | 611 | 110 | 297 | 29 | 8 | 277 | 70 | -1 | +0 | +0 | +0 | +1 | 0.0 |
| 2029 | 27 | MLB CTX | BOS | 42% | 57 | 52 | 11 | 2 | 0 | 1 | 4 | 17 | 1 | 0 | 0 | 216 | 287 | 327 | 614 | 112 | 297 | 30 | 7 | 278 | 71 | -2 | +0 | +0 | +1 | +1 | 0.0 |
| 2030 | 28 | MLB CTX | BOS | 48% | 84 | 76 | 15 | 3 | 0 | 1 | 7 | 25 | 1 | 0 | 0 | 216 | 287 | 327 | 614 | 111 | 296 | 30 | 8 | 278 | 70 | -3 | +0 | -0 | +1 | +2 | 0.0 |
| ▸ Career Totals | |||||||||||||||||||||||||||||||
| ▸ Career totals — MLB only (actual + projected) | |||||||||||||||||||||||||||||||
| Career | — | A+C | — | 165 | 150 | 30 | 6 | 0 | 2 | 13 | 49 | 2 | 0 | 0 | 200 | 273 | 280 | 553 | 80 | 283 | 30 | 8 | 278 | 52 | -6 | +0 | -0 | +3 | +4 | 0.0 | |
| / 162G | — | A+C | — | 650 | 591 | 119 | 24 | 0 | 8 | 51 | 193 | 8 | 0 | 0 | 201 | 274 | 283 | 556 | 81 | 285 | 30 | 8 | 278 | 52 | -23 | +0 | -1 | +12 | +14 | 0.1 | |
| Career | — | MLE | — | 919 | 815 | 148 | 35 | 4 | 9 | 74 | 315 | 23 | 5 | 4 | 182 | 269 | 267 | 536 | 86 | 280 | 34 | 8 | 244 | 52 | -16 | +0 | -1 | +8 | +10 | 0.1 | |
| / 162G | — | MLE | — | 650 | 576 | 105 | 25 | 3 | 6 | 52 | 223 | 16 | 4 | 3 | 182 | 268 | 267 | 536 | 85 | 282 | 34 | 8 | 244 | 52 | -23 | +0 | -1 | +12 | +14 | 0.1 | |
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.
2025 A+Greenville Drive · 88 PAwOBA .268 → .189 (−80)K% 28.4% → 39.8%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 28.41% | ÷0.936 | ×1.310 | — | — | 39.78% |
| BB% (unintentional) /PA | 14.77% | ÷1.050 | ×0.600 | — | ×0.998 | 8.43% |
| HBP% /PA | 1.14% | — | ×0.770 | — | ×0.998 | 0.87% |
| Singles /BIP | 26.53% | ÷0.974 | ×0.870 | ×0.999 | ×0.998 | 23.62% |
| Doubles /BIP | 4.08% | ÷1.099 | ×0.780 | ×0.999 | ×0.998 | 2.89% |
| Triples /BIP | 0.00% | ÷1.011 | ×0.850 | ×0.999 | ×0.998 | 0.00% |
| Home runs /BIP | 0.00% | ÷1.117 | ×0.880 | — | ×0.998 | 0.00% |
Factors used: league row South Atlantic League. Park (home-season share, regressed): HR 123, 1B 95, 2B 120, 3B 102, K 87, BB 110 — 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 ×0.999.
Result: wOBA .268 → .189; ISO .027 → .017; BABIP .306 → .265. 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 ASalem Red Sox · 117 PAwOBA .311 → .242 (−69)K% 25.6% → 36.8%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 25.64% | ÷0.948 | ×1.360 | — | — | 36.78% |
| BB% (unintentional) /PA | 13.68% | ÷1.011 | ×0.690 | — | — | 9.33% |
| HBP% /PA | 5.98% | — | ×0.780 | — | — | 4.67% |
| Singles /BIP | 20.97% | ÷0.989 | ×0.920 | ×1.023 | — | 19.95% |
| Doubles /BIP | 6.45% | ÷1.051 | ×0.830 | ×1.023 | — | 5.21% |
| Triples /BIP | 1.61% | ÷1.150 | ×0.910 | ×1.023 | — | 1.31% |
| Home runs /BIP | 1.61% | ÷0.933 | ×0.800 | — | — | 1.38% |
Factors used: level-wide A factors (no league-specific row for this league/era). Park (home-season share, regressed): HR 87, 1B 98, 2B 110, 3B 130, K 90, BB 102 — 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 ×1.023.
Result: wOBA .311 → .242; ISO .098 → .075; BABIP .290 → .264. 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+Greenville Drive · 59 PAwOBA .280 → .210 (−69)K% 28.8% → 39.3%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 28.81% | ÷0.960 | ×1.310 | — | — | 39.32% |
| BB% (unintentional) /PA | 13.56% | ÷0.924 | ×0.600 | — | ×1.012 | 8.91% |
| HBP% /PA | 1.69% | — | ×0.770 | — | ×1.012 | 1.32% |
| Singles /BIP | 16.13% | ÷1.013 | ×0.870 | — | ×1.012 | 14.02% |
| Doubles /BIP | 9.68% | ÷1.037 | ×0.780 | — | ×1.012 | 7.37% |
| Triples /BIP | 3.23% | ÷0.927 | ×0.850 | — | ×1.012 | 2.99% |
| Home runs /BIP | 0.00% | ÷1.043 | ×0.880 | — | ×1.012 | 0.00% |
Factors used: league row South Atlantic League. Park (home-season share, regressed): HR 109, 1B 103, 2B 107, 3B 85, K 92, BB 85 — 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).
Result: wOBA .280 → .210; ISO .104 → .083; BABIP .273 → .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).
2023 ASalem Red Sox · 81 PAwOBA .296 → .224 (−72)K% 24.7% → 34.2%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 24.69% | ÷0.982 | ×1.360 | — | — | 34.20% |
| BB% (unintentional) /PA | 7.41% | ÷1.052 | ×0.690 | — | ×1.015 | 4.93% |
| HBP% /PA | 2.47% | — | ×0.780 | — | ×1.015 | 1.95% |
| Singles /BIP | 20.75% | ÷1.023 | ×0.920 | ×0.950 | ×1.015 | 17.99% |
| Doubles /BIP | 13.21% | ÷0.942 | ×0.830 | ×0.950 | ×1.015 | 11.22% |
| Triples /BIP | 0.00% | ÷1.000 | ×0.910 | ×0.950 | ×1.015 | 0.00% |
| Home runs /BIP | 0.00% | ÷0.999 | ×0.800 | — | ×1.015 | 0.00% |
Factors used: level-wide A factors (no league-specific row for this league/era). Park (home-season share, regressed): HR 100, 1B 105, 2B 88, 3B 100, K 96, BB 110 — 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 .296 → .224; ISO .096 → .073; BABIP .340 → .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).
2022 ROKFCL Red Sox · 39 PAwOBA .364 → .222 (−141)K% 30.8% → 44.3%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 30.77% | ÷1.000 | ×1.440 | — | — | 44.29% |
| BB% (unintentional) /PA | 7.69% | ÷1.080 | ×0.620 | — | ×0.995 | 4.40% |
| HBP% /PA | 10.26% | — | ×0.720 | — | ×0.995 | 7.35% |
| Singles /BIP | 15.79% | ÷1.010 | ×0.820 | — | ×0.995 | 12.75% |
| Doubles /BIP | 26.32% | ÷1.229 | ×0.720 | — | ×0.995 | 15.33% |
| Triples /BIP | 0.00% | ÷0.908 | ×0.720 | — | ×0.995 | 0.00% |
| Home runs /BIP | 0.00% | ÷0.943 | ×0.780 | — | ×0.995 | 0.00% |
Factors used: level-wide ROK factors (no league-specific row for this league/era). Park (home-season share, regressed): HR 89, 1B 102, 2B 146, 3B 82, K 100, BB 116 — applied at half strength. Age: age 20 vs a level average of 19.5 → −0.5% on BB/HBP/hit rates (0.5 yr older than average).
Result: wOBA .364 → .222; ISO .161 → .085; BABIP .400 → .265. 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 ROKFCL Red Sox · 50 PAwOBA .319 → .217 (−102)K% 26.0% → 37.5%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 26.00% | ÷0.999 | ×1.440 | — | — | 37.49% |
| BB% (unintentional) /PA | 22.00% | ÷0.997 | ×0.620 | — | ×1.008 | 13.79% |
| HBP% /PA | 0.00% | — | ×0.720 | — | ×1.008 | 0.00% |
| Singles /BIP | 11.54% | ÷0.980 | ×0.820 | — | ×1.008 | 9.73% |
| Doubles /BIP | 11.54% | ÷1.029 | ×0.720 | — | ×1.008 | 8.13% |
| Triples /BIP | 0.00% | ÷0.951 | ×0.720 | — | ×1.008 | 0.00% |
| Home runs /BIP | 3.85% | ÷0.951 | ×0.780 | — | ×1.008 | 3.18% |
Factors used: level-wide ROK factors (no league-specific row for this league/era). Park (home-season share, regressed): HR 90, 1B 96, 2B 106, 3B 90, K 100, BB 99 — applied at half strength. Age: age 19 vs a level average of 19.5 → +0.8% on BB/HBP/hit rates (0.5 yr younger than average).
Result: wOBA .319 → .217; ISO .154 → .110; BABIP .240 → .184. 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 — .