Pitcher · 2025
Luis F. Castillo
- Age
- 30
- B/T
- R/R
- Height
- 6' 3"
- Weight
- 212 lb
- Born
- March 10, 1995 in Fantino, Dominican Republic
- MLB debut
- August 6, 2022
- dbWAR
- .0 1 season(s)
- IP
- 7.0
- ERA
- 7.71
- FIP
- 4.71
- K/9
- 6.4
- FIP−
- 113 100 = avg
Luis F. Castillo is a starting pitcher for the Seattle Mariners. In 2025 he struck out 5 batters over 7.0 innings across 2 appearances, 2 of them starts, going 0-0. His ERA of 7.71 was 85.5% higher than the league average of 4.16. Stripping out defence, his 4.71 FIP suggests he pitched better than his ERA shows. He missed bats on 20.3% of swings (8.9% of every pitch he threw), walked 17.1% of the batters he faced and struck out 12.2%. His 0.0 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.
League context
Percentile among qualified pitchers, 2025.
Platoon splits
How left- and right-handed hitters fare against him.
| Split | PA | AB | H | HR | BB | SO | AVG | OBP | SLG | wOBA | K% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| vs LHB | 13 | 12 | 5 | 0 | 1 | 0 | .417 | .462 | .667 | .482 | 0.0% |
| vs RHB | 28 | 21 | 7 | 0 | 6 | 5 | .333 | .481 | .333 | .390 | 17.9% |
Pitch sequencing
What Luis F. Castillo throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Luis F. Castillo throws in it.
Pitch arsenal
What he throws, how hard, and how often it misses in 2025.
| Four-Seam Fastball | 77 | 92.2 | 2,056 | 45.5% | 10.3% | |
| Sweeper | 42 | 80.7 | 2,359 | 26.2% | 46.2% | |
| Sinker | 27 | 91.1 | 2,120 | 51.9% | 10.0% | |
| Changeup | 22 | 86.3 | 1,595 | 31.8% | 33.3% |
Pitching
Standard and advanced, by season.
| Trend | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | 2 | 2 | 7.0 | 0 | 0 | 0 | 12 | 6 | 5 | 7 | 7.71 | 4.71 | 2.71 | 6.4 | 9.0 | 186 | 113 | 0.0 | — |
Head to head
Put Luis F. Castillo beside up to three others.
wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.