Boston Bateman
P Frederick Keys| Year | Age | Lvl / Team | G | GS | IP | ERA | FIP | K% | BB% | WAR | MLE rates |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | 19 | MIX2 levels | 20 | 20 | 87 | 4.14 | 2.55 | 24.7% | 10.0% | — | K 18.4% · BB 11.7% · FIP 3.38 |
| 2026 | 20 | A+BAL | 24 | 21 | 86 | 3.65 | 2.81 | 31.6% | 13.0% | — | K 24.3% · BB 14.9% · FIP 3.86 |
| 2027PROJ | 21 | MLBBAL | — | — | 0 | 4.61 | 4.61 | 23.4% | 13.6% | — | |
| 2028PROJ49% MLB | 22 | MLBBAL | 7 | 7 | 35 | 4.48 | 4.37 | 24.3% | 11.9% | 0.4 | |
| 2029PROJ73% MLB | 23 | MLBBAL | 10 | 10 | 52 | 4.29 | 4.17 | 24.9% | 10.7% | 0.8 |
Contract
Career Stats + Projections
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 the standard WAR scale.
| Year | Age | Lvl | Team | G | GS | IP | BF | K | BB | HR | GS% | IP/G | K% | BB% | K-BB% | HR% | ERA | FIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▸ Career — actual stats, one row per year (as recorded, no adjustments) | |||||||||||||||||||
| ▸ Career — adjusted (each season translated to a park/league-neutral MLB-equivalent line; levels combined per year) | |||||||||||||||||||
| ▸ Model inputs — neutral MLE (past 3 seasons + 2027 so far) | |||||||||||||||||||
| 2025 | 19 | MIX MLE | 2 levels | 20 | 20 | 87 | 380 | 94 | 38 | 2 | 100% | 4.3 | 18.4% | 11.7% | 6.7% | 0.6% | 4.14 | 3.38 | — |
| 2025 | 19 | MIX MLE | 2 levels | 20 | 20 | 87 | 380 | 94 | 38 | 2 | 100% | 4.3 | 18.4% | 11.7% | 6.7% | 0.6% | 4.14 | 3.38 | — |
| 2025 | 19 | MIX RAW | 2 levels | 20 | 20 | 87 | 380 | 94 | 38 | 2 | 100% | 4.3 | 24.7% | 10.0% | 14.7% | 0.5% | 4.14 | 2.55 | — |
| 2026 | 20 | A+ MLE | Frederick Keys | 24 | 21 | 86 | 370 | 117 | 48 | 5 | 88% | 3.6 | 24.3% | 14.9% | 9.4% | 1.7% | 3.65 | 3.86 | — |
| 2026 | 20 | A+ MLE | Frederick Keys | 24 | 21 | 86 | 370 | 117 | 48 | 5 | 88% | 3.6 | 24.3% | 14.9% | 9.4% | 1.7% | 3.65 | 3.86 | — |
| 2026 | 20 | A+ RAW | Frederick Keys | 24 | 21 | 86 | 370 | 117 | 48 | 5 | 88% | 3.6 | 31.6% | 13.0% | 18.6% | 1.4% | 3.65 | 2.81 | — |
| ▸ 2027 season — projected remainder (no 2027 stats recorded) | |||||||||||||||||||
| 2027 | 21 | MLB | BAL | — | — | 0 | — | — | — | — | — | — | 23.4% | 13.6% | 9.8% | 2.5% | 4.61 | 4.61 | — |
| ▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%) | |||||||||||||||||||
| 2028 | 22 | MLB MLE | BAL | 14 | 14 | 71 | 299 | 73 | 35 | 8 | 100% | 5.0 | 24.3% | 11.9% | 12.4% | 2.5% | 4.42 | 4.31 | +0.9 |
| 2029 | 23 | MLB MLE | BAL | 13 | 13 | 71 | 299 | 74 | 32 | 7 | 100% | 5.4 | 24.9% | 10.7% | 14.2% | 2.5% | 4.23 | 4.11 | +1.1 |
| 2030 | 24 | MLB MLE | BAL | 13 | 13 | 71 | 299 | 75 | 30 | 7 | 100% | 5.4 | 25.3% | 9.9% | 15.4% | 2.5% | 4.08 | 3.97 | +1.2 |
| 2031 | 25 | MLB MLE | BAL | 12 | 12 | 68 | 287 | 73 | 27 | 7 | 100% | 5.7 | 25.6% | 9.5% | 16.1% | 2.5% | 3.97 | 3.89 | +1.2 |
| 2032 | 26 | MLB MLE | BAL | 11 | 11 | 68 | 289 | 74 | 27 | 7 | 100% | 6.2 | 25.8% | 9.4% | 16.4% | 2.5% | 3.91 | 3.87 | +1.3 |
| 2033 | 27 | MLB MLE | BAL | 11 | 11 | 67 | 282 | 73 | 27 | 7 | 100% | 6.1 | 25.8% | 9.5% | 16.3% | 2.5% | 3.91 | 3.90 | +1.2 |
| 2034 | 28 | MLB MLE | BAL | 11 | 11 | 64 | 269 | 69 | 26 | 7 | 100% | 5.8 | 25.7% | 9.7% | 16.0% | 2.6% | 3.96 | 3.99 | +1.1 |
| 2035 | 29 | MLB MLE | BAL | 10 | 10 | 59 | 250 | 64 | 25 | 7 | 100% | 5.9 | 25.4% | 9.9% | 15.5% | 2.8% | 4.06 | 4.12 | +0.9 |
| 2036 | 30 | MLB MLE | BAL | 10 | 10 | 59 | 249 | 67 | 23 | 7 | 100% | 5.9 | 27.1% | 9.4% | 17.7% | 3.0% | 4.04 | 4.03 | +1.0 |
| 2037 | 31 | MLB MLE | BAL | 9 | 9 | 52 | 220 | 59 | 21 | 7 | 100% | 5.8 | 26.7% | 9.7% | 16.9% | 3.2% | 4.15 | 4.23 | +0.7 |
| 2038 | 32 | MLB MLE | BAL | 8 | 8 | 45 | 191 | 50 | 19 | 7 | 100% | 5.7 | 26.2% | 10.1% | 16.1% | 3.5% | 4.33 | 4.46 | +0.5 |
| 2039 | 33 | MLB MLE | BAL | 6 | 6 | 39 | 164 | 42 | 17 | 6 | 100% | 6.5 | 25.7% | 10.6% | 15.1% | 3.7% | 4.56 | 4.71 | +0.3 |
| 2028 | 22 | MLB CTX | BAL | 7 | 7 | 35 | 148 | 36 | 18 | 4 | 100% | 5.0 | 24.3% | 11.9% | 12.4% | 2.6% | 4.48 | 4.37 | +0.4 |
| 2029 | 23 | MLB CTX | BAL | 10 | 10 | 52 | 220 | 55 | 23 | 6 | 100% | 5.2 | 24.9% | 10.7% | 14.2% | 2.6% | 4.29 | 4.17 | +0.8 |
| 2030 | 24 | MLB CTX | BAL | 11 | 11 | 59 | 249 | 63 | 25 | 7 | 100% | 5.4 | 25.3% | 9.9% | 15.4% | 2.6% | 4.14 | 4.03 | +1.0 |
| 2031 | 25 | MLB CTX | BAL | 10 | 10 | 60 | 253 | 65 | 24 | 7 | 100% | 6.0 | 25.6% | 9.5% | 16.1% | 2.6% | 4.03 | 3.95 | +1.1 |
| 2032 | 26 | MLB CTX | BAL | 10 | 10 | 62 | 262 | 68 | 25 | 7 | 100% | 6.2 | 25.8% | 9.4% | 16.4% | 2.6% | 3.97 | 3.93 | +1.1 |
| 2033 | 27 | MLB CTX | BAL | 10 | 10 | 62 | 262 | 67 | 25 | 7 | 100% | 6.2 | 25.8% | 9.5% | 16.3% | 2.7% | 3.97 | 3.96 | +1.1 |
| 2034 | 28 | MLB CTX | BAL | 10 | 10 | 60 | 253 | 65 | 24 | 7 | 100% | 6.0 | 25.7% | 9.7% | 16.0% | 2.8% | 4.03 | 4.06 | +1.0 |
| 2035 | 29 | MLB CTX | BAL | 9 | 9 | 56 | 236 | 60 | 23 | 7 | 100% | 6.2 | 25.4% | 9.9% | 15.5% | 2.9% | 4.13 | 4.19 | +0.8 |
| 2036 | 30 | MLB CTX | BAL | 9 | 9 | 56 | 236 | 64 | 22 | 7 | 100% | 6.2 | 27.1% | 9.4% | 17.7% | 3.1% | 4.11 | 4.10 | +0.9 |
| 2037 | 31 | MLB CTX | BAL | 8 | 8 | 50 | 211 | 56 | 21 | 7 | 100% | 6.2 | 26.7% | 9.7% | 16.9% | 3.4% | 4.23 | 4.31 | +0.7 |
| 2038 | 32 | MLB CTX | BAL | 7 | 7 | 43 | 182 | 48 | 18 | 7 | 100% | 6.1 | 26.2% | 10.1% | 16.1% | 3.6% | 4.42 | 4.55 | +0.5 |
| 2039 | 33 | MLB CTX | BAL | 6 | 6 | 37 | 156 | 40 | 17 | 6 | 100% | 6.2 | 25.7% | 10.6% | 15.1% | 3.9% | 4.65 | 4.80 | +0.3 |
| ▸ Career totals — MLB only (actual + projected) | |||||||||||||||||||
| Career | — | RAW | 108 | 108 | 631 | 2665 | 686 | 264 | 78 | 100% | 5.8 | 25.7% | 9.9% | 15.8% | 2.9% | 4.17 | 3.78 | +12.3 | |
| / 200 IP | — | RAW | 34 | 34 | 200 | 844 | 217 | 84 | 25 | 100% | 5.8 | 25.7% | 9.9% | 15.8% | 2.9% | 4.17 | 3.78 | +3.9 | |
| Career | — | MLE | 44 | 41 | 173 | 750 | 160 | 100 | 9 | 93% | 3.9 | 21.3% | 13.3% | 8.0% | 1.2% | 3.89 | 3.62 | +11.3 | |
| / 200 IP | — | MLE | 51 | 47 | 200 | 865 | 185 | 115 | 10 | 93% | 3.9 | 21.3% | 13.3% | 8.0% | 1.2% | 3.89 | 3.62 | +3.1 | |
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.
2026 A+Frederick Keys · 86 IPFIP 2.81 → 3.86 (+1.05)K% 31.6% → 24.3%
| Component | Raw | Park ÷ | Level factor × | = MLE |
|---|---|---|---|---|
| K% /BF | 31.62% | — | ×0.770 | 24.35% |
| BB% (unintentional) /BF | 12.97% | — | ×1.150 | 14.92% |
| HR / BF /BF | 1.35% | ÷1.000 | ×1.250 | 1.69% |
Factors used: pitcher A+ level factors — K ×0.77, BB ×1.15, HR ×1.25. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 100).
Result: FIP 2.81 → 3.86, computed from the rates in the table with the same formula before and after. The MLE line is not regressed to the mean — regression is applied when seasons are blended into a projection (how).
2025 ADelmarva Shorebirds · 76 IPFIP 2.21 → 3.03 (+0.81)K% 25.0% → 18.5%
| Component | Raw | Park ÷ | Level factor × | = MLE |
|---|---|---|---|---|
| K% /BF | 25.00% | — | ×0.740 | 18.50% |
| BB% (unintentional) /BF | 8.33% | — | ×1.180 | 9.83% |
| HR / BF /BF | 0.31% | ÷0.899 | ×1.300 | 0.45% |
Factors used: pitcher A level factors — K ×0.74, BB ×1.18, HR ×1.30. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 80).
Result: FIP 2.21 → 3.03, computed from the rates in the table with the same formula before and after. The MLE line is not regressed to the mean — regression is applied when seasons are blended into a projection (how).
2025 A+Aberdeen IronBirds · 11 IPFIP 4.61 → 5.45 (+0.84)K% 23.2% → 17.9%
| Component | Raw | Park ÷ | Level factor × | = MLE |
|---|---|---|---|---|
| K% /BF | 23.21% | — | ×0.770 | 17.88% |
| BB% (unintentional) /BF | 19.64% | — | ×1.150 | 22.59% |
| HR / BF /BF | 1.79% | ÷1.229 | ×1.250 | 1.82% |
Factors used: pitcher A+ level factors — K ×0.77, BB ×1.15, HR ×1.25. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 146).
Result: FIP 4.61 → 5.45, computed from the rates in the table with the same formula before and after. The MLE line is not regressed to the mean — regression is applied when seasons are blended into a projection (how).
Career Comps
Completed MLB careers (no pro action in 2+ yrs) whose totals — actual + projected — most resemble this player's. Pool: 1,234 reliever careers (754 from 1990-2025 + 480 historical, 1901-2023), also matched on career-to-date at the same age. * Historical (Lahman) careers: rates era-adjusted to 2001-24 league levels; WAR is an OGILVIE proxy.
| Player | 162s | IP/yr | K% | BB% | HR/9 | ERA |
|---|---|---|---|---|---|---|
| OGILVIE CAREER PROJECTION | 4.0 | 61 | 25.5% | 10.3% | 1.06 | 4.15 |
| Jason Grilli ('17) | 3.4 | 53 | 23.4% | 9.8% | 1.00 | 4.22 |
| Andrew Miller ('21) | 4.1 | 59 | 27.1% | 10.6% | 0.87 | 4.03 |
| Brian Fuentes ('12) | 3.1 | 56 | 24.4% | 9.8% | 0.94 | 3.62 |
| Tim Stoddard ('75-'89, 4 WAR*) | 3.6 | 66 | 26.2%* | 11.2%* | 1.14* | 4.24* |
| Rob Murphy ('85-'95, 6 WAR*) | 3.1 | 69 | 25.2%* | 9.2%* | 1.07* | 3.94* |
| Jeff Parrett ('86-'96, 6 WAR*) | 3.6 | 72 | 24.8%* | 11.0%* | 1.02* | 4.07* |