Luis Guerrero
P Durham Bulls| Year | Age | Lvl / Team | G | GS | IP | ERA | FIP | K% | BB% | WAR | MLE rates |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | 23 | MIX2 levels | 51 | 0 | 64 | 2.80 | 3.16 | 32.0% | 12.4% | 1.1 | K 28.4% · BB 12.1% · FIP 3.75 |
| 2025 | 24 | MIX4 levels | 39 | 0 | 48 | 4.47 | 5.40 | 17.5% | 18.9% | -0.5 | K 15.8% · BB 15.6% · FIP 5.37 |
| 2026 | 25 | MIX2 levels | 38 | 1 | 48 | 8.69 | 7.32 | 21.9% | 13.6% | — | K 18.5% · BB 12.9% · FIP 7.46 |
| 2027PROJ | 26 | MLBTB | 6 | 0 | 6 | 5.55 | 6.16 | 20.1% | 16.4% | -0.1 | |
| 2028PROJ43% MLB | 27 | MLBTB | 17 | 0 | 18 | 5.75 | 6.01 | 20.4% | 15.7% | -0.3 | |
| 2029PROJ63% MLB | 28 | MLBTB | 21 | 0 | 22 | 5.83 | 5.97 | 20.5% | 15.4% | -0.3 |
Grades · Statcast · Contract
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
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) | |||||||||||||||||||
| 2022 | 21 | MIX MLE | 3 levels | 27 | 0 | 39 | 166 | 59 | 16 | 1 | 0% | 1.4 | 26.4% | 11.8% | 14.6% | 0.9% | 3.23 | 2.88 | — |
| 2022 | 21 | MIX RAW | 3 levels | 27 | 0 | 39 | 166 | 59 | 16 | 1 | 0% | 1.4 | 35.5% | 9.6% | 25.9% | 0.6% | 3.23 | 1.64 | — |
| 2023 | 22 | MIX MLE | 2 levels | 49 | 0 | 54 | 237 | 68 | 36 | 3 | 0% | 1.1 | 22.5% | 15.0% | 7.5% | 1.1% | 2.32 | 3.70 | — |
| 2023 | 22 | MIX RAW | 2 levels | 49 | 0 | 54 | 237 | 68 | 36 | 3 | 0% | 1.1 | 28.7% | 15.2% | 13.5% | 1.3% | 2.32 | 3.30 | — |
| 2024 | 23 | MIX MLE | 2 levels | 51 | 0 | 64 | 275 | 88 | 34 | 6 | 0% | 1.3 | 28.4% | 12.1% | 16.4% | 2.8% | 2.80 | 3.75 | +0.6 |
| 2024 | 23 | MIX MLE | 2 levels | 51 | 0 | 64 | 275 | 88 | 34 | 6 | 0% | 1.3 | 28.4% | 12.1% | 16.4% | 2.8% | 2.80 | 3.75 | +0.6 |
| 2024 | 23 | MIX RAW | 2 levels | 51 | 0 | 64 | 275 | 88 | 34 | 6 | 0% | 1.3 | 32.0% | 12.4% | 19.6% | 2.2% | 2.80 | 3.16 | +1.1 |
| 2025 | 24 | MIX MLE | 4 levels | 39 | 0 | 48 | 212 | 37 | 40 | 5 | 0% | 1.2 | 15.8% | 15.6% | 0.3% | 3.0% | 4.47 | 5.37 | -0.5 |
| 2025 | 24 | MIX MLE | 4 levels | 39 | 0 | 48 | 212 | 37 | 40 | 5 | 0% | 1.2 | 15.8% | 15.6% | 0.3% | 3.0% | 4.47 | 5.37 | -0.5 |
| 2025 | 24 | MIX RAW | 4 levels | 39 | 0 | 48 | 212 | 37 | 40 | 5 | 0% | 1.2 | 17.5% | 18.9% | -1.4% | 2.4% | 4.47 | 5.40 | -0.5 |
| 2026 | 25 | MIX MLE | 2 levels | 38 | 1 | 48 | 228 | 50 | 31 | 16 | 3% | 1.3 | 18.5% | 12.9% | 5.5% | 7.8% | 8.69 | 7.46 | — |
| 2026 | 25 | MIX MLE | 2 levels | 38 | 1 | 48 | 228 | 50 | 31 | 16 | 3% | 1.3 | 18.5% | 12.9% | 5.5% | 7.8% | 8.69 | 7.46 | — |
| 2026 | 25 | MIX RAW | 2 levels | 38 | 1 | 48 | 228 | 50 | 31 | 16 | 3% | 1.3 | 21.9% | 13.6% | 8.3% | 7.0% | 8.69 | 7.32 | — |
| ▸ Career totals (raw MLB only — as recorded) | |||||||||||||||||||
| MLB Career | — | 22 | 0 | 27 | 108 | 19 | 16 | 0 | 0% | 1.2 | 17.6% | 14.8% | 2.8% | 0.0% | 2.63 | 3.47 | +0.4 | ||
| ▸ 2027 season — projected remainder (no 2027 stats recorded) | |||||||||||||||||||
| 2027 | 26 | MLB | TB | 6 | 0 | 6 | 25 | 5 | 4 | 1 | 0% | 1.0 | 20.1% | 16.4% | 3.8% | 4.2% | 5.55 | 6.16 | -0.1 |
| ▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%) | |||||||||||||||||||
| 2028 | 27 | MLB MLE | TB | 39 | 0 | 41 | 174 | 36 | 27 | 7 | 0% | 1.1 | 20.4% | 15.7% | 4.7% | 4.1% | 5.75 | 6.01 | -0.6 |
| 2029 | 28 | MLB MLE | TB | 33 | 0 | 35 | 147 | 30 | 23 | 6 | 0% | 1.1 | 20.5% | 15.4% | 5.1% | 4.1% | 5.83 | 5.97 | -0.5 |
| 2028 | 27 | MLB CTX | TB | 17 | 0 | 18 | 76 | 16 | 12 | 3 | 0% | 1.1 | 20.4% | 15.7% | 4.7% | 4.1% | 5.75 | 6.01 | -0.3 |
| 2029 | 28 | MLB CTX | TB | 21 | 0 | 22 | 93 | 19 | 14 | 4 | 0% | 1.0 | 20.5% | 15.4% | 5.1% | 4.1% | 5.83 | 5.97 | -0.3 |
| ▸ Career totals — MLB only (actual + projected) | |||||||||||||||||||
| Career | — | RAW | 59 | 0 | 67 | 274 | 53 | 42 | 7 | 0% | 1.1 | 19.3% | 15.2% | 4.1% | 2.5% | 4.50 | 4.77 | -0.2 | |
| / 200 IP | — | RAW | 178 | 0 | 200 | 822 | 159 | 126 | 21 | 0% | 1.1 | 19.3% | 15.2% | 4.1% | 2.5% | 4.50 | 4.77 | -0.5 | |
| Career | — | MLE | 204 | 1 | 254 | 1118 | 251 | 151 | 36 | 0% | 1.2 | 22.5% | 13.5% | 9.0% | 3.2% | 4.19 | 4.67 | -0.9 | |
| / 200 IP | — | MLE | 161 | 1 | 200 | 881 | 198 | 119 | 28 | 0% | 1.2 | 22.5% | 13.5% | 9.0% | 3.2% | 4.19 | 4.67 | -1.8 | |
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 AAADurham Bulls · 37 IPFIP 7.61 → 8.10 (+0.49)K% 18.3% → 15.7%
| Component | Raw | Park ÷ | Level factor × | = MLE |
|---|---|---|---|---|
| K% /BF | 18.29% | — | ×0.860 | 15.73% |
| BB% (unintentional) /BF | 13.14% | — | ×0.900 | 11.83% |
| HR / BF /BF | 8.00% | ÷1.000 | ×1.100 | 8.80% |
Factors used: pitcher AAA level factors (Triple-A 2023+ robo-zone set: walks improve on promotion) — K ×0.86, BB ×0.90, HR ×1.10. 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 7.61 → 8.10, 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).
2026 AAMontgomery Biscuits · 10 IPFIP 4.22 → 5.37 (+1.15)K% 34.0% → 27.5%
| Component | Raw | Park ÷ | Level factor × | = MLE |
|---|---|---|---|---|
| K% /BF | 33.96% | — | ×0.810 | 27.51% |
| BB% (unintentional) /BF | 15.09% | — | ×1.100 | 16.60% |
| HR / BF /BF | 3.77% | ÷1.000 | ×1.200 | 4.53% |
Factors used: pitcher AA level factors — K ×0.81, BB ×1.10, HR ×1.20. 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 4.22 → 5.37, 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 AAAWorcester Red Sox · 27 IPFIP 5.65 → 5.97 (+0.33)K% 19.8% → 17.1%
| Component | Raw | Park ÷ | Level factor × | = MLE |
|---|---|---|---|---|
| K% /BF | 19.83% | — | ×0.860 | 17.05% |
| BB% (unintentional) /BF | 14.66% | — | ×0.900 | 13.19% |
| HR / BF /BF | 4.31% | ÷0.984 | ×1.100 | 4.82% |
Factors used: pitcher AAA level factors (Triple-A 2023+ robo-zone set: walks improve on promotion) — K ×0.86, BB ×0.90, HR ×1.10. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 97).
Result: FIP 5.65 → 5.97, 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).
2024 AAAWorcester Red Sox · 54 IPFIP 3.38 → 3.75 (+0.37)K% 33.1% → 28.4%
| Component | Raw | Park ÷ | Level factor × | = MLE |
|---|---|---|---|---|
| K% /BF | 33.05% | — | ×0.860 | 28.43% |
| BB% (unintentional) /BF | 13.39% | — | ×0.900 | 12.05% |
| HR / BF /BF | 2.51% | ÷0.996 | ×1.100 | 2.77% |
Factors used: pitcher AAA level factors (Triple-A 2023+ robo-zone set: walks improve on promotion) — K ×0.86, BB ×0.90, HR ×1.10. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 99).
Result: FIP 3.38 → 3.75, 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).
2023 AAPortland Sea Dogs · 50 IPFIP 3.00 → 3.70 (+0.69)K% 27.8% → 22.5%
| Component | Raw | Park ÷ | Level factor × | = MLE |
|---|---|---|---|---|
| K% /BF | 27.83% | — | ×0.810 | 22.54% |
| BB% (unintentional) /BF | 13.68% | — | ×1.100 | 15.05% |
| HR / BF /BF | 0.94% | ÷1.048 | ×1.200 | 1.08% |
Factors used: pitcher AA level factors — K ×0.81, BB ×1.10, HR ×1.20. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 110).
Result: FIP 3.00 → 3.70, 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).
2023 AAAWorcester Red Sox · 5 IPFIP 5.80 → 6.07 (+0.27)K% 36.0% → 31.0%
| Component | Raw | Park ÷ | Level factor × | = MLE |
|---|---|---|---|---|
| K% /BF | 36.00% | — | ×0.860 | 30.96% |
| BB% (unintentional) /BF | 28.00% | — | ×0.900 | 25.20% |
| HR / BF /BF | 4.00% | ÷1.008 | ×1.100 | 4.37% |
Factors used: pitcher AAA level factors (Triple-A 2023+ robo-zone set: walks improve on promotion) — K ×0.86, BB ×0.90, HR ×1.10. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 102).
Result: FIP 5.80 → 6.07, 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).
2022 ASalem Red Sox · 24 IPFIP 2.21 → 3.53 (+1.32)K% 35.6% → 26.3%
| Component | Raw | Park ÷ | Level factor × | = MLE |
|---|---|---|---|---|
| K% /BF | 35.58% | — | ×0.740 | 26.33% |
| BB% (unintentional) /BF | 12.50% | — | ×1.180 | 14.75% |
| HR / BF /BF | 0.96% | ÷0.873 | ×1.300 | 1.43% |
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 75).
Result: FIP 2.21 → 3.53, 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).
2022 A+Greenville Drive · 13 IPFIP 0.87 → 1.65 (+0.77)K% 34.5% → 26.6%
| Component | Raw | Park ÷ | Level factor × | = MLE |
|---|---|---|---|---|
| K% /BF | 34.55% | — | ×0.770 | 26.60% |
| BB% (unintentional) /BF | 5.45% | — | ×1.150 | 6.27% |
| HR / BF /BF | 0.00% | ÷0.996 | ×1.250 | 0.00% |
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 99).
Result: FIP 0.87 → 1.65, 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 | 0.8 | 53 | 19.9% | 15.7% | 1.35 | 5.16 |
| Doug Creek ('05) | 1.4 | 58 | 22.2% | 15.1% | 1.52 | 5.32 |
| Richie Lewis ('98) | 1.5 | 59 | 18.1% | 14.1% | 1.38 | 4.88 |
| Doug Bochtler ('00) | 1.3 | 65 | 18.6% | 14.4% | 1.25 | 4.57 |
| Ed Glynn ('75-'85, -0 WAR*) | 1.3 | 53 | 23.5%* | 12.9%* | 1.22* | 4.69* |
| Dwayne Henry ('84-'95, -1 WAR*) | 1.7 | 67 | 23.8%* | 14.2%* | 0.90* | 5.02* |
| Gene Harris ('89-'95, -1 WAR*) | 1.2 | 40 | 20.0%* | 12.5%* | 0.98* | 4.96* |