Players · A · Pitcher · 2026
Spencer Arrighetti
- Age
- 26
- B/T
- R/R
- Height
- 6' 2"
- Weight
- 186 lb
- Number
- #45
- Born
- January 2, 2000 in Albuquerque, NM, United States
- MLB debut
- April 10, 2024
- Drafted
- 2021, round 6
- College
- Louisiana-Lafayette
- High school
- Cinco Ranch
- dbWAR
- 1.0 3 season(s)
- IP
- 110.2
- ERA
- 4.96
- FIP
- 5.44
- K/9
- 8.6
- FIP−
- 130 100 = avg
Spencer Arrighetti is a starting pitcher for the Houston Astros. In 2026 he struck out 106 batters over 110.2 innings across 24 appearances, 19 of them starts, going 9-9. His ERA of 4.96 is 18.7% higher than the league average of 4.18 — 11th of 20 on his team, and 405th of 538 among MLB pitchers with 20+ innings. Stripping out defence, his 5.44 FIP suggests that his ERA had some help behind him. He missed bats on 25.5% of swings (10.7% of every pitch he threw), walked 13.0% of the batters he faced and struck out 21.5%. His -0.5 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, 2026.
WAR by season
Pitching
Standard and advanced, by season.
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 | 289 | 232 | 52 | 12 | 45 | 62 | .224 | .368 | .414 | .355 | 21.5% |
| vs RHB | 203 | 174 | 37 | 6 | 19 | 44 | .213 | .308 | .351 | .300 | 21.7% |
Pitch sequencing
What Spencer Arrighetti throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Spencer Arrighetti throws in it.
Pitch arsenal
What he throws, how hard, how often it misses, and what hitters do with it.
| Curveball | 665 | 76.5 | 2,825 | 42.6% | 40.3% | 140 | .157 | .513 | |
| Four-Seam Fastball | 546 | 92.4 | 2,330 | 49.5% | 18.9% | 101 | .267 | .891 | |
| Sweeper | 225 | 79.7 | 2,763 | 43.1% | 26.0% | 52 | .212 | .674 | |
| Sinker | 204 | 92.1 | 2,283 | 42.6% | 9.8% | 40 | .350 | 1.166 | |
| Changeup | 155 | 84.2 | 1,480 | 31.6% | 25.4% | 31 | .129 | .390 | |
| Cutter | 131 | 87.8 | 2,330 | 46.6% | 14.1% | 40 | .250 | .933 | |
| Slider | 16 | 82.2 | 2,672 | 37.5% | 25.0% | 3 | — | — |
Head to head
Put Spencer Arrighetti beside up to three others.
Or read one already written — Spencer Arrighetti against:
Similar players
Nearest 2026 seasons by command, run prevention and role, on rate statistics rather than totals.
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.