Jon Kemmer
PosLF
B/TL/L
Born1990-11-17
Age (2026)35
Contract
No contract data on file. Pre-MLB players and minor-league free agents do not yet have salary projections — entries are added at first 40-man roster placement.
Career Projections (MLE)
All seasons translated to park-neutral MLB-equivalent (MLE) and combined per year. 2026 = actual YTD + projected ROS + total. 2027+ via Advanced Marcel + aging curve.
| Year | Age | Lvl | Team | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2014 | 23 | A | 2 teams | 363 | 341 | 82 | 20 | 2 | 12 | 16 | 95 | 4 | 3 | 2 | .240 | .283 | .416 | .699 | .176 | .298 | 26 | 4 | .295 | 84 | -7 | -0 | +0 | -4 | +10 | -0.0 |
| 2015 | 24 | AA | Corpus Christi Hooks | 425 | 379 | 102 | 23 | 5 | 15 | 30 | 121 | 12 | 9 | 1 | .269 | .342 | .475 | .817 | .206 | .352 | 28 | 7 | .350 | 126 | +12 | +1 | +0 | -5 | +12 | 2.2 |
| 2016 | 25 | AAA | Fresno Grizzlies | 452 | 418 | 82 | 17 | 2 | 12 | 27 | 166 | 5 | 8 | 10 | .196 | .253 | .333 | .586 | .136 | .289 | 37 | 6 | .257 | 55 | -23 | -2 | +0 | -5 | +13 | -1.8 |
| 2017 | 26 | AAA | Fresno Grizzlies | 358 | 318 | 74 | 14 | 1 | 12 | 30 | 124 | 8 | 6 | 2 | .233 | .315 | .396 | .711 | .164 | .337 | 35 | 8 | .316 | 100 | +0 | +0 | +0 | -4 | +10 | 0.7 |
| 2018 | 27 | AAA | Rochester Red Wings | 463 | 425 | 84 | 19 | 4 | 15 | 27 | 153 | 9 | 5 | 2 | .198 | .260 | .367 | .627 | .169 | .266 | 33 | 6 | .273 | 67 | -17 | +0 | +0 | -5 | +13 | -0.9 |
| 2019 | 28 | AAA | 2 teams | 479 | 424 | 97 | 18 | 0 | 23 | 37 | 156 | 17 | 2 | 1 | .229 | .316 | .434 | .750 | .205 | .301 | 33 | 8 | .328 | 109 | +5 | +0 | +0 | -5 | +14 | 1.4 |
| 2020 | 29 | INTL | Aguilas Cibaenas | 15 | 12 | 3 | 1 | 0 | 0 | 2 | 3 | 1 | 0 | 0 | .250 | .400 | .333 | .733 | .083 | .333 | 20 | 13 | — | — | — | — | +0 | -0 | — | — |
| ▸ Career Totals (MLE all levels + projections) | ||||||||||||||||||||||||||||||
| Career | — | 2555 | 2317 | 524 | 112 | 14 | 89 | 169 | 818 | 56 | 33 | 18 | .226 | .295 | .402 | .696 | .176 | .306 | 32 | 7 | .301 | 88 | -33 | -1 | +0 | -27 | +72 | 1.1 | ||
| / 162G | — | 650 | 589 | 134 | 28 | 4 | 23 | 43 | 208 | 14 | 8 | 5 | .228 | .295 | .406 | .701 | .178 | .307 | 32 | 7 | .301 | 88 | -9 | -0 | +0 | -7 | +18 | 0.3 | ||
Historical Stats — Raw (Per Stint)
Actual MLB + MiLB stats as they happened, one row per stint at each level. Use this to see what really got recorded; the table above shows MLB-equivalent translations + projections.
| Year | Age | Lvl | Team | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2014 | 23 | A+ | Lancaster JetHawks | 159 | 153 | 45 | 10 | 1 | 12 | 4 | 33 | 1 | 0 | 1 | .294 | .316 | .608 | .924 | .314 | .303 | 21 | 3 | .395 | 161 | +11 | -0 | — | — | +5 | 1.5 |
| 2014 | 23 | A | Quad Cities River Bandits | 204 | 180 | 52 | 15 | 1 | 4 | 20 | 39 | 3 | 3 | 1 | .289 | .369 | .450 | .819 | .161 | .350 | 19 | 10 | .364 | 137 | +9 | +0 | — | — | +6 | 1.5 |
| 2015 | 24 | AA | Corpus Christi Hooks | 425 | 364 | 119 | 28 | 4 | 18 | 45 | 89 | 12 | 9 | 1 | .327 | .418 | .574 | .992 | .247 | .387 | 21 | 11 | .429 | 187 | +42 | +1 | — | — | +12 | 5.6 |
| 2016 | 25 | AAA | Fresno Grizzlies | 452 | 407 | 108 | 24 | 4 | 18 | 38 | 128 | 5 | 8 | 10 | .265 | .336 | .477 | .812 | .211 | .342 | 28 | 8 | .356 | 131 | +16 | -2 | — | — | +13 | 2.7 |
| 2017 | 26 | AAA | Fresno Grizzlies | 358 | 304 | 91 | 17 | 3 | 16 | 44 | 95 | 8 | 6 | 2 | .299 | .402 | .533 | .935 | .234 | .385 | 27 | 12 | .409 | 171 | +29 | +0 | — | — | +10 | 4.0 |
| 2018 | 27 | AAA | Rochester Red Wings | 463 | 410 | 100 | 24 | 5 | 17 | 42 | 125 | 9 | 5 | 2 | .244 | .328 | .451 | .779 | .207 | .307 | 27 | 9 | .344 | 121 | +11 | +0 | — | — | +13 | 2.5 |
| 2019 | 28 | AAA | Oklahoma City Dodgers | 401 | 339 | 108 | 21 | 0 | 27 | 45 | 102 | 16 | 1 | 1 | .319 | .422 | .619 | 1.042 | .301 | .384 | 25 | 11 | .450 | 203 | +47 | -0 | — | — | +11 | 5.9 |
| 2019 | 28 | INTL | Algodoneros de Guasave | 78 | 72 | 14 | 3 | 0 | 0 | 5 | 29 | 1 | 1 | 0 | .194 | .256 | .236 | .493 | .042 | .326 | 37 | 6 | .231 | 35 | -6 | +0 | — | — | +2 | -0.3 |
| 2020 | 29 | INTL | Aguilas Cibaenas | 15 | 12 | 3 | 1 | 0 | 0 | 2 | 3 | 1 | 0 | 0 | .250 | .400 | .333 | .733 | .083 | .333 | 20 | 13 | .348 | 125 | +0 | +0 | — | — | +0 | 0.1 |