Players · W · Pitcher · 2026 regular season
Garrett Whitlock
- Age
- 30
- B/T
- R/R
- Height
- 6' 5"
- Weight
- 222 lb
- Number
- #22
- Born
- June 11, 1996 in Snellville, GA, United States
- MLB debut
- April 4, 2021
- Drafted
- 2017, round 18
- College
- Alabama-Birmingham
- Salary, 2026
- $7.5M
Compare with…vs Garrett Crochetvs Cade Smithvs Brandyn Garcia
- dbWAR
- 8.0 Regular season, 7 season(s)
- IP
- 52.1
- ERA
- 1.72
- FIP
- 2.11
- K/9
- 10.1
- FIP−
- 50 100 = avg
Garrett Whitlock is a relief pitcher for the Boston Red Sox. In 2026 he struck out 59 batters over 52.1 innings across 54 appearances, going 7-2. His ERA of 1.72 was 58.9% lower than the league average of 4.18 — the best on his team, and 9th of 539 among MLB pitchers with 20+ innings. Stripping out defence, his 2.11 FIP suggests that his ERA had some help behind him. He missed bats on 31.5% of swings (18.0% of every pitch he threw), walked 4.5% of the batters he faced and struck out 29.8%. His 1.6 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.
| Trend | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | BOS | 54 | 0 | 52.1 | 7 | 2 | 4 | 38 | 10 | 59 | 9 | 1.72 | 2.11 | 0.90 | 10.1 | 1.5 | 41 | 50 | 1.6 | |
| 2025 | BOS | 62 | 0 | 72.0 | 7 | 3 | 1 | 54 | 18 | 91 | 24 | 2.25 | 2.18 | 1.08 | 11.4 | 3.0 | 54 | 52 | 2.1 | |
| 2024 | BOS | 4 | 4 | 18.1 | 1 | 0 | 0 | 14 | 4 | 17 | 7 | 1.96 | 3.33 | 1.15 | 8.3 | 3.4 | 48 | 82 | 0.4 | |
| 2023 | BOS | 22 | 10 | 71.2 | 5 | 5 | 1 | 82 | 41 | 72 | 13 | 5.15 | 4.27 | 1.33 | 9.0 | 1.6 | 119 | 99 | 0.8 | |
| 2022 | BOS | 31 | 9 | 78.1 | 4 | 2 | 6 | 65 | 30 | 82 | 15 | 3.45 | 3.29 | 1.02 | 9.4 | 1.7 | 87 | 83 | 1.3 | |
| 2021 | BOS | 46 | 0 | 73.1 | 8 | 4 | 2 | 64 | 16 | 81 | 17 | 1.96 | 2.84 | 1.10 | 9.9 | 2.1 | 46 | 67 | 1.8 |
Batting Regular season
Standard and advanced, by season. Regular-season games only — postseason games are listed separately below.
| Trend | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | BOS | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 1 | .500 | .500 | .500 | .000 | 1.000 | 0.0% | 50.0% | .438 | +0.2 | 172 | 0.1 | — |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 Post | BOS | Wild Card · through Sep 30 | 1 | 0 | 1.1 | 0 | 0 | 0 | 3 | 3 | 1 | 3 | 1 | 20.25 | 4.50 | 6.8 |
| 2025 Post | BOS | Wild Card | 1 | 0 | 1.2 | 0 | 1 | 0 | 3 | 1 | 0 | 2 | 3 | 5.40 | 3.00 | 16.2 |
| 2021 Post | BOS | Postseason total | 5 | 0 | 8.1 | 1 | 0 | 0 | 4 | 2 | 2 | 2 | 5 | 2.16 | 0.72 | 5.4 |
| Wild Card | 1 | 0 | 1.0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 9.00 | 1.00 | 0.0 | ||
| ALDS | 2 | 0 | 3.1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 0.00 | 0.30 | 8.1 | ||
| ALCS | 2 | 0 | 4.0 | 0 | 0 | 0 | 3 | 1 | 1 | 1 | 2 | 2.25 | 1.00 | 4.5 | ||
| Career | Postseason total · 3 Octobers | 7 | 0 | 11.1 | 1 | 1 | 0 | 10 | 6 | 3 | 7 | 9 | 4.76 | 1.50 | 7.1 |
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 | 111 | 103 | 23 | 1 | 6 | 33 | .223 | .261 | .272 | .241 | 29.7% |
| vs RHB | 87 | 83 | 15 | 2 | 3 | 26 | .181 | .209 | .301 | .224 | 29.9% |
Pitch sequencing
What Garrett Whitlock throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Garrett Whitlock throws in it.
Pitch arsenal
What he throws, how hard, how often it misses, and what hitters do with it.
| Sinker | 416 | 94.9 | 2,176 | 55.3% | 23.4% | 87 | .230 | .548 | |
| Slider | 193 | 86.1 | 1,965 | 56.5% | 46.4% | 59 | .153 | .448 | |
| Changeup | 134 | 84.3 | 2,244 | 46.3% | 34.2% | 40 | .225 | .581 |
Compare Garrett Whitlock with…
Side by side with up to three others.
Or read one already written — Garrett Whitlock against:
- Garrett Crochet2025 Boston Red Sox
- Cade Smith2025 relievers
- Brandyn Garciasimilar 2026 seasons
- Aroldis Chapman2025 relievers
- Nate Lavendersimilar 2026 seasons
- Adrian Morejon2025 relievers
- Trevor Megillsimilar 2026 seasons
- Sean Newcomb2025 relievers
- Tanner Scottsimilar 2026 seasons
- Bryan Abreu2025 relievers
- Jhoan Duransimilar 2026 seasons
- Edwin Díaz2025 relievers
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.