Pitcher · 2026
Jason Alexander
- Age
- 33
- B/T
- R/R
- Height
- 6' 2"
- Weight
- 227 lb
- Number
- #54
- Born
- March 1, 1993 in Windsor, CA, USA
- MLB debut
- June 1, 2022
- College
- Menlo
- High school
- Cardinal Newman
- dbWAR
- -.4 2 season(s)
- IP
- 18.1
- ERA
- 9.33
- FIP
- 5.87
- K/9
- 6.9
- FIP−
- 141 100 = avg
Jason Alexander is a relief pitcher for the Houston Astros. In 2026 he struck out 14 batters over 18.1 innings across 4 appearances, going 1-1. His ERA of 9.33 was 123.4% higher than the league average of 4.18. Stripping out defence, his 5.87 FIP suggests he pitched better than his ERA shows. He missed bats on 20.3% of swings (9.0% of every pitch he threw), walked 9.5% of the batters he faced and struck out 16.7%. His -0.2 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.
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 | 51 | 46 | 16 | 2 | 5 | 7 | .348 | .412 | .630 | .448 | 13.7% |
| vs RHB | 33 | 29 | 5 | 2 | 3 | 7 | .172 | .273 | .448 | .314 | 21.2% |
Pitch sequencing
What Jason Alexander throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Jason Alexander throws in it.
Pitch arsenal
What he throws, how hard, and how often it misses in 2026.
| Changeup | 105 | 80.4 | 1,818 | 30.5% | 29.4% | |
| Sinker | 70 | 91.0 | 2,057 | 54.3% | 16.7% | |
| Four-Seam Fastball | 69 | 91.5 | 2,315 | 44.9% | 11.4% | |
| Cutter | 22 | 85.4 | 2,276 | 40.9% | 11.1% | |
| Sweeper | 18 | 78.6 | 2,563 | 38.9% | 20.0% | |
| Slider | 15 | 81.8 | 2,412 | 60.0% | 22.2% |
Pitching
Standard and advanced, by season.
| Trend | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 4 | 2 | 18.1 | 1 | 1 | 0 | 21 | 19 | 14 | 8 | 9.33 | 5.87 | 1.58 | 6.9 | 3.9 | 223 | 141 | -0.2 | |
| 2025 | 18 | 13 | 77.1 | 4 | 2 | 1 | 80 | 41 | 65 | 26 | 4.77 | 5.10 | 1.37 | 7.6 | 3.0 | 115 | 123 | -0.1 |
Head to head
Put Jason Alexander 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.