Chantz Mack
| Year | Age | Lvl / Team | PA | AVG/OBP/SLG | HR | SB | wRC+ | WAR | MLE AVG/OBP/SLG |
|---|---|---|---|---|---|---|---|---|---|
| 2015 | 24 | A+/A2 orgs | 503 | .252/.350/.384 | 9 | 6 | 58 | — | .197/.271/.299 |
| 2016 | 25 | AA/A+2 orgs | 586 | .284/.390/.429 | 14 | 5 | 78 | — | .227/.302/.345 |
| 2017 | 26 | AASEA | 108 | .184/.343/.253 | 1 | 0 | 39 | — | .149/.259/.202 |
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) | |||||||||||||||||||||||||||||||
| 2013 | 22 | AA | Jackson Generals | — | 22 | 22 | 5 | 0 | 0 | 0 | 0 | 5 | 0 | 1 | 0 | 227 | 227 | 227 | 455 | 294 | 23 | 0 | 206 | 2 | — | — | — | — | — | — | |
| 2013 | 22 | ROK | AZL Mariners | — | 60 | 46 | 14 | 5 | 1 | 0 | 11 | 16 | 1 | 0 | 3 | 304 | 448 | 457 | 905 | 152 | 438 | 27 | 18 | 395 | 74 | — | — | — | — | — | — |
| 2014 | 23 | A+ | High Desert Mavericks | — | 67 | 63 | 14 | 3 | 0 | 2 | 4 | 13 | 0 | 2 | 1 | 222 | 269 | 365 | 634 | 143 | 250 | 19 | 6 | 283 | 35 | — | — | — | — | — | — |
| 2014 | 23 | A | Clinton LumberKings | — | 310 | 273 | 77 | 11 | 4 | 8 | 29 | 40 | 2 | 7 | 3 | 282 | 355 | 440 | 795 | 158 | 301 | 13 | 9 | 348 | 76 | — | — | — | — | — | — |
| 2015 | 24 | A+ | Bakersfield Blaze | — | 137 | 122 | 28 | 4 | 1 | 8 | 11 | 35 | 1 | 3 | 2 | 230 | 299 | 475 | 774 | 246 | 244 | 26 | 8 | 331 | 59 | — | — | — | — | — | — |
| 2015 | 24 | A | Clinton LumberKings | — | 366 | 310 | 81 | 16 | 4 | 1 | 49 | 79 | 4 | 3 | 5 | 261 | 369 | 348 | 718 | 87 | 345 | 22 | 13 | 329 | 57 | — | — | — | — | — | — |
| 2016 | 25 | AA | Jackson Generals | — | 23 | 20 | 5 | 0 | 1 | 0 | 3 | 2 | 0 | 0 | 0 | 250 | 348 | 350 | 698 | 100 | 278 | 9 | 13 | 319 | 63 | — | — | — | — | — | — |
| 2016 | 25 | A+ | Bakersfield Blaze | — | 563 | 476 | 136 | 18 | 5 | 14 | 80 | 123 | 3 | 5 | 3 | 286 | 392 | 433 | 825 | 147 | 356 | 22 | 14 | 369 | 79 | — | — | — | — | — | — |
| 2017 | 26 | AA | Arkansas Travelers | — | 108 | 87 | 16 | 3 | 0 | 1 | 21 | 22 | 0 | 0 | 0 | 184 | 343 | 253 | 595 | 69 | 234 | 20 | 19 | 291 | 39 | — | — | — | — | — | — |
| ▸ Career — adjusted (every ACTUAL line translated to park/league-neutral MLB equivalents) | |||||||||||||||||||||||||||||||
| 2013 | 22 | AA MLE | Jackson Generals | — | 22 | 22 | 4 | 0 | 0 | 0 | 0 | 6 | 0 | 1 | 0 | 182 | 182 | 182 | 364 | 269 | 27 | 0 | 171 | 2 | — | — | — | — | — | — | |
| 2013 | 22 | ROK MLE | AZL Mariners | — | 60 | 50 | 10 | 3 | 1 | 0 | 7 | 23 | 1 | 0 | 3 | 200 | 310 | 300 | 610 | 100 | 331 | 38 | 12 | 277 | 74 | — | — | — | — | — | — |
| 2014 | 23 | A+ MLE | High Desert Mavericks | — | 67 | 64 | 12 | 2 | 0 | 2 | 3 | 19 | 0 | 2 | 1 | 188 | 224 | 312 | 536 | 125 | 230 | 28 | 4 | 220 | 35 | — | — | — | — | — | — |
| 2014 | 23 | A MLE | Clinton LumberKings | — | 310 | 283 | 68 | 9 | 4 | 6 | 19 | 53 | 2 | 7 | 3 | 240 | 293 | 364 | 657 | 124 | 264 | 17 | 6 | 280 | 76 | — | — | — | — | — | — |
| 2015 | 24 | A+ MLE | Bakersfield Blaze | — | 137 | 125 | 22 | 3 | 1 | 6 | 8 | 48 | 1 | 3 | 2 | 176 | 231 | 360 | 591 | 184 | 208 | 35 | 6 | 256 | 59 | — | — | — | — | — | — |
| 2015 | 24 | A MLE | Clinton LumberKings | — | 366 | 326 | 67 | 12 | 4 | 1 | 33 | 112 | 4 | 3 | 5 | 206 | 287 | 276 | 563 | 71 | 303 | 31 | 9 | 253 | 57 | — | — | — | — | — | — |
| 2016 | 25 | AA MLE | Jackson Generals | — | 23 | 21 | 5 | 0 | 1 | 0 | 2 | 2 | 0 | 0 | 0 | 238 | 304 | 333 | 638 | 95 | 249 | 9 | 9 | 261 | 63 | — | — | — | — | — | — |
| 2016 | 25 | A+ MLE | Bakersfield Blaze | — | 563 | 504 | 114 | 13 | 4 | 13 | 52 | 163 | 3 | 5 | 3 | 226 | 302 | 345 | 648 | 119 | 299 | 29 | 9 | 285 | 79 | — | — | — | — | — | — |
| 2017 | 26 | AA MLE | Arkansas Travelers | — | 108 | 94 | 14 | 2 | 0 | 1 | 14 | 28 | 0 | 0 | 0 | 149 | 259 | 202 | 461 | 53 | 209 | 26 | 13 | 226 | 39 | — | — | — | — | — | — |
| 2013 | 22 | ROK MLE | 2 teams | — | 82 | 72 | 15 | 3 | 1 | 0 | 7 | 29 | 1 | 1 | 3 | 208 | 287 | 278 | 565 | 69 | 333 | 35 | 9 | 249 | 54 | — | — | — | — | — | — |
| 2013 | 22 | ROK RAW | 2 teams | — | 82 | 68 | 19 | 5 | 1 | 0 | 11 | 21 | 1 | 1 | 3 | 279 | 388 | 382 | 770 | 103 | 388 | 26 | 13 | 344 | 54 | — | — | — | — | — | — |
| 2014 | 23 | A MLE | 2 teams | — | 377 | 347 | 80 | 12 | 4 | 7 | 22 | 72 | 2 | 9 | 4 | 231 | 280 | 349 | 629 | 118 | 268 | 19 | 6 | 269 | 68 | — | — | — | — | — | — |
| 2014 | 23 | A RAW | 2 teams | — | 377 | 336 | 91 | 14 | 4 | 10 | 33 | 53 | 2 | 9 | 4 | 271 | 340 | 426 | 765 | 155 | 292 | 14 | 9 | 336 | 68 | — | — | — | — | — | — |
| 2015 | 24 | A MLE | 2 teams | — | 503 | 451 | 90 | 16 | 5 | 7 | 41 | 160 | 5 | 6 | 7 | 200 | 274 | 304 | 577 | 104 | 287 | 32 | 8 | 254 | 58 | — | — | — | — | — | — |
| 2015 | 24 | A RAW | 2 teams | — | 503 | 432 | 109 | 20 | 5 | 9 | 60 | 114 | 5 | 6 | 7 | 252 | 350 | 384 | 734 | 132 | 318 | 23 | 12 | 330 | 58 | — | — | — | — | — | — |
| 2016 | 25 | A+ MLE | 2 teams | — | 586 | 525 | 119 | 13 | 5 | 13 | 54 | 166 | 3 | 5 | 3 | 227 | 302 | 345 | 647 | 118 | 303 | 28 | 9 | 284 | 78 | — | — | — | — | — | — |
| 2016 | 25 | A+ RAW | 2 teams | — | 586 | 496 | 141 | 18 | 6 | 14 | 83 | 125 | 3 | 5 | 3 | 284 | 390 | 429 | 819 | 145 | 352 | 21 | 14 | 367 | 78 | — | — | — | — | — | — |
| 2017 | 26 | AA MLE | Arkansas Travelers | — | 108 | 94 | 14 | 2 | 0 | 1 | 14 | 28 | 0 | 0 | 0 | 149 | 259 | 202 | 461 | 53 | 200 | 26 | 13 | 226 | 39 | — | — | — | — | — | — |
| 2017 | 26 | AA RAW | Arkansas Travelers | — | 108 | 87 | 16 | 3 | 0 | 1 | 21 | 22 | 0 | 0 | 0 | 184 | 343 | 253 | 595 | 69 | 234 | 20 | 19 | 291 | 39 | — | — | — | — | — | — |
| 2013 | 22 | ROK MLE | 2 teams | — | 82 | 74 | 15 | 3 | 1 | 0 | 7 | 29 | 1 | 1 | 3 | 203 | 287 | 270 | 558 | 68 | 314 | 35 | 9 | 249 | 54 | — | — | — | — | — | — |
| 2014 | 23 | A MLE | 2 teams | — | 377 | 350 | 80 | 12 | 4 | 7 | 22 | 72 | 2 | 9 | 4 | 229 | 280 | 346 | 626 | 117 | 258 | 19 | 6 | 269 | 68 | — | — | — | — | — | — |
| 2015 | 24 | A MLE | 2 teams | — | 503 | 452 | 90 | 16 | 5 | 7 | 41 | 160 | 5 | 6 | 7 | 199 | 274 | 303 | 577 | 104 | 277 | 32 | 8 | 254 | 58 | — | — | — | — | — | — |
| 2016 | 25 | A+ MLE | 2 teams | — | 586 | 524 | 119 | 13 | 5 | 13 | 54 | 166 | 3 | 5 | 3 | 227 | 302 | 345 | 648 | 118 | 297 | 28 | 9 | 284 | 78 | — | — | — | — | — | — |
| 2017 | 26 | AA MLE | Arkansas Travelers | — | 108 | 93 | 14 | 2 | 0 | 1 | 14 | 28 | 0 | 0 | 0 | 151 | 259 | 204 | 464 | 54 | 209 | 26 | 13 | 226 | 39 | — | — | — | — | — | — |
| ▸ Career Totals | |||||||||||||||||||||||||||||||
| Career | — | MLE | — | 1656 | 1489 | 318 | 46 | 15 | 28 | 138 | 455 | 11 | 21 | 17 | 214 | 285 | 321 | 606 | 107 | 284 | 27 | 8 | 266 | 66 | -67 | -3 | +0 | -18 | +36 | -5.2 | |
| / 162G | — | MLE | — | 650 | 584 | 125 | 18 | 6 | 11 | 54 | 179 | 4 | 8 | 7 | 214 | 285 | 322 | 607 | 108 | 285 | 28 | 8 | 266 | 66 | -26 | -1 | +0 | -7 | +14 | -2.1 | |
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.
2017 AAArkansas Travelers · 108 PAwOBA .285 → .226 (−59)K% 20.4% → 25.5%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 20.37% | ÷0.973 | ×1.220 | — | — | 25.54% |
| BB% (unintentional) /PA | 19.44% | ÷1.005 | ×0.700 | — | ×0.988 | 13.38% |
| HBP% /PA | 0.00% | — | ×0.870 | — | ×0.988 | 0.00% |
| Singles /BIP | 18.46% | ÷0.974 | ×0.920 | ×0.979 | ×0.988 | 16.88% |
| Doubles /BIP | 4.62% | ÷0.993 | ×0.840 | ×0.979 | ×0.988 | 3.78% |
| Triples /BIP | 0.00% | ÷1.150 | ×0.940 | ×0.979 | ×0.988 | 0.00% |
| Home runs /BIP | 1.54% | ÷1.024 | ×0.800 | — | ×0.988 | 1.19% |
Factors used: league row TL. Park (home-season share, regressed): HR 105, 1B 95, 2B 99, 3B 130, K 95, BB 101 — 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 ×0.979.
Result: wOBA .285 → .226; ISO .069 → .056; BABIP .234 → .209. 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).
2016 A+Bakersfield Blaze · 563 PAwOBA .362 → .285 (−77)K% 21.8% → 29.0%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 21.85% | ÷1.008 | ×1.340 | — | — | 29.03% |
| BB% (unintentional) /PA | 14.03% | ÷1.045 | ×0.710 | — | ×0.978 | 9.32% |
| HBP% /PA | 0.53% | — | ×0.790 | — | ×0.978 | 0.41% |
| Singles /BIP | 28.05% | ÷1.038 | ×0.910 | ×1.010 | ×0.978 | 24.29% |
| Doubles /BIP | 5.10% | ÷1.120 | ×0.820 | ×1.010 | ×0.978 | 3.69% |
| Triples /BIP | 1.42% | ÷0.900 | ×0.760 | ×1.010 | ×0.978 | 1.18% |
| Home runs /BIP | 3.97% | ÷0.973 | ×0.920 | — | ×0.978 | 3.67% |
Factors used: league row CAL. Park (home-season share, regressed): HR 95, 1B 108, 2B 124, 3B 80, K 102, BB 109 — applied at half strength. Age: age 25 vs a level average of 22.8 → −2.2% on BB/HBP/hit rates (2.2 yr older than average). Ground-ball/fly-ball mix moves 1B/2B/3B by ×1.010.
Result: wOBA .362 → .285; ISO .147 → .123; BABIP .356 → .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).
2016 AAJackson Generals · 23 PAwOBA .311 → .261 (−50)K% 8.7% → 10.6%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 8.70% | ÷1.001 | ×1.220 | — | — | 10.60% |
| BB% (unintentional) /PA | 13.04% | ÷1.011 | ×0.680 | — | ×0.998 | 8.76% |
| HBP% /PA | 0.00% | — | ×0.840 | — | ×0.998 | 0.00% |
| Singles /BIP | 22.22% | ÷0.989 | ×0.920 | — | ×0.998 | 20.64% |
| Doubles /BIP | 0.00% | ÷0.889 | ×0.910 | — | ×0.998 | 0.00% |
| Triples /BIP | 5.56% | ÷1.138 | ×0.880 | — | ×0.998 | 4.29% |
| Home runs /BIP | 0.00% | ÷0.992 | ×0.800 | — | ×0.998 | 0.00% |
Factors used: league row SL. Park (home-season share, regressed): HR 98, 1B 98, 2B 78, 3B 128, K 100, BB 102 — 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).
Result: wOBA .311 → .261; ISO .100 → .080; BABIP .278 → .249. 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 AClinton LumberKings · 366 PAwOBA .323 → .253 (−70)K% 21.6% → 30.6%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 21.58% | ÷0.958 | ×1.360 | — | — | 30.64% |
| BB% (unintentional) /PA | 13.39% | ÷1.007 | ×0.690 | — | ×0.980 | 8.99% |
| HBP% /PA | 1.09% | — | ×0.780 | — | ×0.980 | 0.84% |
| Singles /BIP | 25.97% | ÷1.031 | ×0.920 | ×1.014 | ×0.980 | 23.04% |
| Doubles /BIP | 6.93% | ÷1.003 | ×0.830 | ×1.014 | ×0.980 | 5.70% |
| Triples /BIP | 1.73% | ÷0.900 | ×0.910 | ×1.014 | ×0.980 | 1.74% |
| Home runs /BIP | 0.43% | ÷0.847 | ×0.800 | — | ×0.980 | 0.40% |
Factors used: level-wide A factors (no league-specific row for this league/era). Park (home-season share, regressed): HR 69, 1B 106, 2B 101, 3B 80, K 92, BB 102 — 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 ×1.014.
Result: wOBA .323 → .253; ISO .087 → .073; BABIP .345 → .303. 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 A+Bakersfield Blaze · 137 PAwOBA .329 → .256 (−73)K% 25.5% → 34.7%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 25.55% | ÷0.988 | ×1.340 | — | — | 34.67% |
| BB% (unintentional) /PA | 8.03% | ÷0.999 | ×0.710 | — | ×0.988 | 5.64% |
| HBP% /PA | 0.73% | — | ×0.790 | — | ×0.988 | 0.57% |
| Singles /BIP | 17.24% | ÷0.995 | ×0.910 | ×0.970 | ×0.988 | 15.12% |
| Doubles /BIP | 4.60% | ÷0.930 | ×0.820 | ×0.970 | ×0.988 | 3.89% |
| Triples /BIP | 1.15% | ÷0.900 | ×0.760 | ×0.970 | ×0.988 | 0.93% |
| Home runs /BIP | 9.20% | ÷1.077 | ×0.920 | — | ×0.988 | 7.76% |
Factors used: league row CAL. Park (home-season share, regressed): HR 115, 1B 99, 2B 86, 3B 80, K 98, BB 100 — 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 ×0.970.
Result: wOBA .329 → .256; ISO .246 → .193; BABIP .244 → .208. 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 AClinton LumberKings · 310 PAwOBA .343 → .280 (−63)K% 12.9% → 17.2%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 12.90% | ÷1.018 | ×1.360 | — | — | 17.23% |
| BB% (unintentional) /PA | 9.35% | ÷1.068 | ×0.690 | — | ×0.990 | 5.98% |
| HBP% /PA | 0.65% | — | ×0.780 | — | ×0.990 | 0.50% |
| Singles /BIP | 23.18% | ÷0.999 | ×0.920 | ×0.982 | ×0.990 | 20.75% |
| Doubles /BIP | 4.72% | ÷0.969 | ×0.830 | ×0.982 | ×0.990 | 3.93% |
| Triples /BIP | 1.72% | ÷1.023 | ×0.910 | ×0.982 | ×0.990 | 1.48% |
| Home runs /BIP | 3.43% | ÷1.129 | ×0.800 | — | ×0.990 | 2.41% |
Factors used: level-wide A factors (no league-specific row for this league/era). Park (home-season share, regressed): HR 126, 1B 100, 2B 94, 3B 105, K 104, BB 114 — 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). Ground-ball/fly-ball mix moves 1B/2B/3B by ×0.982.
Result: wOBA .343 → .280; ISO .158 → .122; BABIP .301 → .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).
2014 A+High Desert Mavericks · 67 PAwOBA .275 → .220 (−55)K% 19.4% → 28.1%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 19.40% | ÷0.925 | ×1.340 | — | — | 28.10% |
| BB% (unintentional) /PA | 5.97% | ÷0.961 | ×0.710 | — | ×0.998 | 4.40% |
| HBP% /PA | 0.00% | — | ×0.790 | — | ×0.998 | 0.00% |
| Singles /BIP | 18.00% | ÷0.981 | ×0.910 | ×1.035 | ×0.998 | 17.25% |
| Doubles /BIP | 6.00% | ÷1.015 | ×0.820 | ×1.035 | ×0.998 | 5.01% |
| Triples /BIP | 0.00% | ÷1.001 | ×0.760 | ×1.035 | ×0.998 | 0.00% |
| Home runs /BIP | 4.00% | ÷1.097 | ×0.920 | — | ×0.998 | 3.35% |
Factors used: league row CAL. Park (home-season share, regressed): HR 119, 1B 96, 2B 103, 3B 100, K 85, BB 92 — 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 ×1.035.
Result: wOBA .275 → .220; ISO .143 → .108; BABIP .250 → .230. 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 ROKAZL Mariners · 60 PAwOBA .399 → .277 (−122)K% 26.7% → 38.4%
| Component | Raw | Park ÷ | Level factor × | GB/FB × | Age × | = MLE |
|---|---|---|---|---|---|---|
| K% /PA | 26.67% | ÷1.000 | ×1.440 | — | — | 38.40% |
| BB% (unintentional) /PA | 18.33% | ÷1.000 | ×0.620 | — | ×0.975 | 11.08% |
| HBP% /PA | 1.67% | — | ×0.720 | — | ×0.975 | 1.17% |
| Singles /BIP | 26.67% | ÷1.000 | ×0.820 | — | ×0.975 | 21.32% |
| Doubles /BIP | 16.67% | ÷1.000 | ×0.720 | — | ×0.975 | 11.70% |
| Triples /BIP | 3.33% | ÷1.000 | ×0.720 | — | ×0.975 | 2.34% |
| Home runs /BIP | 0.00% | ÷1.000 | ×0.780 | — | ×0.975 | 0.00% |
Factors used: level-wide ROK factors (no league-specific row for this league/era). Park (home-season share, regressed): no park row on file (treated as neutral) — applied at half strength. Age: age 22 vs a level average of 19.5 → −2.5% on BB/HBP/hit rates (2.5 yr older than average).
Result: wOBA .399 → .277; ISO .152 → .105; BABIP .438 → .331. 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).