William Kempner
P
Jacksonville Jumbo Shrimp
Age 25
RHP
6'0" / 222 lbs
AAA
peak 0.3 · 2027
ILInjured 15-Day (D15)
2026 ROS PROJECTION44 act + 52 ip · rates below = ROS only
wRC+ AGAINSTvL 110101vR 92
ERA3.99
FIP3.99
K%26.4%
BB%13.6%
K-BB%12.8%
ROS IP52
Value2026 · WAR
Runs saved vs league avg · 96 IP
Grades · Statcast · Contract
Statcast Percentiles
FB Velo
p6495.5
Whiff%
p9034.1%
K%
p8128.0%
xwOBA vs
p560.306
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 Stats + Projections
Viewactual = stats as recorded (seasons combined) + projected real-world MLB lines · MLE = level/park-neutral translations
Methodology▸ how WAR & MLE are computed
Stats are park-neutral MLB equivalents. The "TEAM" column shows current org affiliation only — we do NOT project at that team's park.
Rates (K%, BB%, HR-BF) are park-stripped; MiLB stat lines are translated to their MLB-equivalent via per-level MLE factors.
WAR is computed from projected runs prevented vs a replacement pitcher (the marginal arm a team would call up if this pitcher were unavailable) — calibrated to industry-standard fWAR.
| Year | Age | Lvl | Team | G | GS | IP | BF | K | BB | HR | GS% | IP/G | K% | BB% | K-BB% | HR% | ERA | FIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | 21 | MIX | 2 levels | 5 | 2 | 9 | 43 | 11 | 6 | 1 | 40% | 1.8 | 25.6% | 14.0% | 11.6% | 2.3% | 5.00 | 3.98 | — |
| 2022 | 21 | MIX | 2 levels | 5 | 2 | 9 | 43 | 11 | 6 | 1 | 40% | 1.8 | 25.6% | 14.0% | 11.6% | 2.3% | 5.00 | 4.10 | — |
| 2023 | 22 | MIX | 3 levels | 38 | 5 | 63 | 278 | 78 | 30 | 5 | 13% | 1.6 | 21.5% | 12.2% | 9.3% | 2.0% | 3.73 | 3.94 | — |
| 2023 | 22 | MIX | 3 levels | 38 | 5 | 63 | 278 | 78 | 30 | 5 | 13% | 1.6 | 28.1% | 10.8% | 17.3% | 1.8% | 3.73 | 3.08 | — |
| 2025 | 24 | MIX | 3 levels | 48 | 0 | 68 | 283 | 95 | 40 | 2 | 0% | 1.4 | 27.3% | 15.5% | 11.8% | 1.0% | 2.26 | 3.29 | — |
| 2025 | 24 | MIX | 3 levels | 48 | 0 | 68 | 283 | 95 | 40 | 2 | 0% | 1.4 | 33.6% | 14.1% | 19.4% | 0.7% | 2.26 | 2.45 | — |
| ▸ 2026 Season | |||||||||||||||||||
| 2026 | 25 | MLB | Miami Marlins | 33 | 0 | 44 | 187 | 66 | 24 | 4 | 0% | 1.3 | 32.0% | 13.4% | 18.6% | 2.3% | 3.68 | 3.36 | +0.6 |
| ROS | 25 | MLB | MIA | 49 | 0 | 52 | 219 | 58 | 30 | 6 | 0% | 1.1 | 26.4% | 13.6% | 12.8% | 2.6% | 3.99 | 3.99 | +0.3 |
| ROS | 25 | MLB | MIA | 50 | 0 | 52 | 220 | 58 | 30 | 6 | 0% | 1.0 | 26.4% | 13.6% | 12.8% | 2.6% | 3.99 | 3.99 | +0.3 |
| 2026 TOT | 25 | MLB | MIA | — | — | 96 | 406 | 124 | 54 | 10 | — | — | 30.5% | 13.2% | 17.3% | 2.4% | 3.85 | 3.70 | +1.8 |
| 2026 FULL | 25 | MLB | MIA | — | — | 64 | 271 | 124 | 54 | 10 | — | — | 45.6% | 19.8% | 25.8% | 3.5% | 5.75 | 3.70 | +0.7 |
| ▸ 2027+ Projections WITH CONTEXT · MLB TIME ONLY ⓘ | |||||||||||||||||||
| 2027 | 26 | MLB | MIA | 67 | 0 | 70 | 296 | 75 | 37 | 8 | 0% | 1.0 | 25.4% | 12.5% | 12.9% | 2.6% | 4.34 | 4.33 | +0.4 |
| 2028 | 27 | MLB | MIA | 66 | 0 | 69 | 291 | 73 | 36 | 8 | 0% | 1.0 | 25.2% | 12.3% | 12.9% | 2.7% | 4.36 | 4.37 | +0.3 |
| 2027 | 26 | MLB | MIA | 63 | 0 | 66 | 279 | 71 | 35 | 7 | 0% | 1.0 | 25.4% | 12.5% | 12.9% | 2.6% | 4.34 | 4.33 | +0.3 |
| 2028 | 27 | MLB | MIA | 63 | 0 | 66 | 279 | 70 | 34 | 7 | 0% | 1.0 | 25.2% | 12.3% | 12.9% | 2.7% | 4.36 | 4.37 | +0.2 |
| ▸ Career (MLB actual + context projections) | |||||||||||||||||||
| Career | — | 184 | 0 | 196 | 827 | 213 | 103 | 21 | 0% | 1.1 | 25.8% | 12.4% | 13.3% | 2.6% | 4.17 | 3.91 | +3.4 | ||
| / 200 IP | — | 188 | 0 | 200 | 842 | 217 | 105 | 21 | 0% | 1.1 | 25.8% | 12.4% | 13.3% | 2.6% | 4.17 | 3.91 | +3.5 | ||
| Career | — | 124 | 7 | 183 | 791 | 208 | 109 | 14 | 6% | 1.5 | 26.3% | 13.7% | 12.5% | 1.7% | 3.24 | 3.57 | +3.9 | ||
| / 200 IP | — | 135 | 8 | 200 | 863 | 227 | 118 | 15 | 6% | 1.5 | 26.3% | 13.7% | 12.5% | 1.7% | 3.24 | 3.57 | +4.3 | ||
Career Path Comps
What happened to similar pitchers from this age · Y-axis: ERA+ (100 = league avg, 150 = elite, 80 = below) · Bands: P10–P90 outer, P25–P75 inner · Gold: OGILVIE projection
| Profile at Match Age | Next 3 Yrs | Career | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Comp | Age | Role | FIP | K% | BB% | HR/BF | BABIP | FIP | K% | K-BB% | IP | ΔFIP | Low FIP | IP | Match |
| William Kempner (OGILVIE) | — | — | 4.51 | 24.9% | 13.6% | 2.6% | — | 4.35 | 25.3% | 12.9% | 139 | -0.16 | — | — | — |
| Jesus Pirela R 2027 · 3.91 FIP | 26 | SU | 3.91 | 23.7% | 11.6% | 2.5% | .305 | 3.92 | 17.1% | 13.9% | 45 | +0.01 | 3.21 | 161 | 89 |
| Zach Franklin R 2026 · 3.53 FIP | 25 | SU | 3.53 | 26.4% | 10.9% | 2.3% | .301 | 4.31 | 28.4% | 19.1% | 97 | +0.78 | 3.48 | 138 | 87 |
| Brooks Kriske R 2026 · 3.52 FIP | 25 | SU | 3.52 | 26.1% | 12.2% | 2.0% | .245 | 5.01 | 28.6% | 16.5% | 41 | +1.49 | 3.00 | 246 | 86 |
| Luis Ramirez R 2025 · 3.58 FIP | 24 | SU | 3.58 | 24.0% | 12.6% | 1.7% | .286 | — | — | — | — | — | 3.58 | 104 | 86 |
| Ben Hecht R 2025 · 4.56 FIP | 24 | SU | 4.56 | 22.7% | 12.9% | 3.2% | .293 | 7.95 | 14.1% | -11.4% | 13 | +3.39 | 4.55 | 155 | 86 |
| Eduard Santos R 2026 · 3.49 FIP | 25 | SU | 3.49 | 28.1% | 15.2% | 1.5% | .265 | 3.62 | 24.0% | 10.0% | 79 | +0.13 | 2.04 | 138 | 85 |
| Randall Delgado R 2026 · 3.57 FIP | 25 | SU | 3.57 | 23.7% | 10.1% | 2.2% | .284 | 3.71 | 20.3% | 12.4% | 167 | +0.14 | 3.05 | 290 | 85 |
| Tommy Kahnle R 2026 · 4.00 FIP | 25 | SU | 4.00 | 23.8% | 14.8% | 1.9% | .284 | 2.56 | 30.9% | 21.0% | 165 | -1.44 | 1.52 | 452 | 85 |
| Zac Leigh R 2026 · 3.72 FIP | 25 | SU | 3.72 | 28.1% | 11.7% | 2.8% | .282 | 4.81 | 20.3% | 2.9% | 127 | +1.09 | 3.72 | 197 | 84 |
| Maikel Cleto R 2027 · 3.54 FIP | 26 | SU | 3.54 | 25.8% | 12.1% | 2.0% | .214 | 3.04 | 25.0% | 15.3% | 55 | -0.50 | 2.59 | 156 | 84 |
| Jason Stoffel R 2027 · 3.54 FIP | 26 | SU | 3.54 | 23.4% | 10.1% | 2.1% | .267 | 3.70 | 27.2% | 19.2% | 59 | +0.16 | 3.54 | 103 | 84 |
| Dusty Isaacs R 2026 · 3.81 FIP | 25 | SU | 3.81 | 23.1% | 10.8% | 2.4% | .255 | 4.69 | 21.6% | 9.9% | 86 | +0.88 | 3.16 | 253 | 84 |
| Antonio Menendez R 2026 · 3.70 FIP | 25 | SU | 3.70 | 23.6% | 14.2% | 1.5% | .292 | 4.23 | 18.8% | 4.6% | 87 | +0.53 | 2.97 | 231 | 84 |
| Brandon Cunniff R 2027 · 4.16 FIP | 26 | SU | 4.16 | 24.5% | 13.2% | 2.6% | .256 | 4.34 | 20.3% | 9.0% | 115 | +0.18 | 3.78 | 180 | 84 |
| Pat Light R 2026 · 4.11 FIP | 25 | SU | 4.11 | 21.1% | 13.1% | 2.1% | .276 | 4.66 | 11.8% | -2.3% | 55 | +0.55 | 4.11 | 172 | 83 |
| Jackson Hicks R 2026 · 3.94 FIP | 25 | SU | 3.94 | 22.6% | 10.5% | 2.6% | .336 | — | — | — | — | — | 2.17 | 116 | 83 |
| Steven Wilson R 2025 · 4.13 FIP | 24 | SU | 4.13 | 27.2% | 10.7% | 3.6% | .271 | 3.80 | 29.3% | 19.9% | 92 | -0.33 | 3.36 | 311 | 83 |
| Jhan Mariñez R 2027 · 3.46 FIP | 26 | SU | 3.46 | 23.1% | 9.3% | 2.1% | .244 | 3.76 | 18.9% | 11.1% | 168 | +0.30 | 3.23 | 253 | 83 |
| Chris Jefferson R 2026 · 3.74 FIP | 25 | SU | 3.74 | 22.4% | 10.2% | 2.3% | .330 | 4.97 | 16.5% | 3.9% | 101 | +1.23 | 3.74 | 140 | 83 |
| Justin Evans R 2026 · 3.73 FIP | 25 | SU | 3.73 | 23.6% | 14.3% | 1.5% | .323 | 4.80 | 16.4% | -7.9% | 14 | +1.07 | 3.73 | 105 | 83 |
Career Comps
Retired MLB careers whose totals most resemble what we're projecting for this player. Pool: 327 completed pitcher careers (2015-2024).
| Player | Yrs | IP/yr | K% | BB% | HR/9 | ERA |
|---|---|---|---|---|---|---|
| OGILVIE CAREER PROJECTION | 3 | 68 | 25.2% | 12.8% | 1.01 | 4.40 |
| Fernando Rodney ('19) | 5 | 59 | 24.6% | 11.8% | 0.88 | 4.21 |
| Daniel Bard ('23) | 4 | 50 | 25.1% | 13.5% | 0.81 | 3.82 |
| Greg Holland ('21) | 6 | 45 | 25.4% | 12.3% | 0.87 | 4.03 |
| José Cisnero ('23) | 5 | 42 | 24.8% | 11.3% | 0.94 | 3.84 |
| Lucas Sims ('24) | 6 | 47 | 27.6% | 11.6% | 1.24 | 4.22 |
| Keegan Thompson ('24) | 4 | 57 | 23.0% | 11.3% | 1.19 | 3.64 |