Players · J · Pitcher · 2026 regular season
Alek Jacob
- Age
- 28
- B/T
- L/R
- Height
- 6' 3"
- Weight
- 190 lb
- Number
- #37
- Born
- June 16, 1998 in Spokane, WA, United States
- MLB debut
- July 15, 2023
- Drafted
- 2021, round 16
- College
- Gonzaga
- dbWAR
- .0 Regular season, 4 season(s)
- IP
- 5.0
- ERA
- 5.40
- FIP
- 5.10
- K/9
- 10.8
- FIP−
- 122 100 = avg
Alek Jacob is a relief pitcher for the San Diego Padres. In 2026 he struck out 6 batters over 5.0 innings across 3 appearances, going 1-0. His ERA of 5.40 was 29.1% higher than the league average of 4.18. Stripping out defence, his 5.10 FIP suggests the ERA was no fluke. He missed bats on 37.8% of swings (19.5% of every pitch he threw), walked 8.7% of the batters he faced and struck out 26.1%. 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, 2026 regular season.
WAR by season
Pitching Regular season
Standard and advanced, by season. Regular-season games only — postseason games are listed separately below.
Separate from the regular season
Postseason Postseason
Wild Card through World Series. These games are counted on their own: none of them are in the regular-season tables, career totals, league context, leaderboards or dbWAR on this page.
Postseason pitching
| Season | Team | Round | G | GS | IP | W | L | SV | H | ER | HR | BB | SO | ERA | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 Post | SD | NLDS | 2 | 0 | 2.0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 2 | 4.50 | 1.00 | 9.0 |
Box-score and rate statistics only. wOBA, wRC+, FIP and dbWAR are measured against a full league season, and a postseason is a few teams playing each other for a month, so they are not computed for October.
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 | 14 | 12 | 1 | 0 | 1 | 5 | .083 | .214 | .167 | .195 | 35.7% |
| vs RHB | 9 | 8 | 4 | 1 | 1 | 1 | .500 | .556 | .875 | .603 | 11.1% |
Pitch sequencing
What Alek Jacob throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Alek Jacob throws in it.
Pitch arsenal
What he throws, how hard, how often it misses, and what hitters do with it.
| Four-Seam Fastball | 37 | 84.3 | 2,306 | 48.6% | 26.3% | 9 | — | — | |
| Changeup | 30 | 73.6 | 2,140 | 60.0% | 70.6% | 6 | — | — | |
| Sinker | 17 | 83.9 | 2,211 | 35.3% | 0.0% | 4 | — | — |
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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.