Pitcher · 2026
Matt Krook
- Age
- 32
- B/T
- L/L
- Height
- 6' 4"
- Weight
- 225 lb
- Born
- October 21, 1994 in Hillsborough, CA, USA
- MLB debut
- June 16, 2023
- Drafted
- 2013, round CB-A
- College
- Oregon
- High school
- Saint Ignatius
- dbWAR
- -.4 3 season(s)
- IP
- 8.1
- ERA
- 10.80
- FIP
- 8.37
- K/9
- 9.7
- FIP−
- 200 100 = avg
Matt Krook is a relief pitcher for the Washington Nationals. In 2026 he struck out 9 batters over 8.1 innings across 11 appearances, going 0-1. His ERA of 10.80 was 158.6% higher than the league average of 4.18. Stripping out defence, his 8.37 FIP suggests he pitched better than his ERA shows. He missed bats on 25.7% of swings (10.6% of every pitch he threw), walked 21.7% of the batters he faced and struck out 19.6%. His -0.3 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 | 22 | 18 | 4 | 2 | 4 | 6 | .222 | .364 | .667 | .431 | 27.3% |
| vs RHB | 24 | 16 | 5 | 0 | 6 | 3 | .313 | .542 | .313 | .429 | 12.5% |
Pitch sequencing
What Matt Krook throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Matt Krook throws in it.
Pitch arsenal
What he throws, how hard, and how often it misses in 2026.
| Sweeper | 93 | 82.1 | 2,715 | 43.0% | 33.3% | |
| Sinker | 78 | 89.6 | 2,007 | 43.6% | 16.1% |
Pitching
Standard and advanced, by season.
| Trend | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 11 | 0 | 8.1 | 0 | 1 | 0 | 9 | 10 | 9 | 10 | 10.80 | 8.37 | 2.28 | 9.7 | 10.8 | 259 | 200 | -0.3 | |
| 2025 | 3 | 0 | 3.1 | 0 | 0 | 0 | 5 | 2 | 3 | 1 | 5.40 | 2.24 | 1.80 | 8.1 | 2.7 | 130 | 54 | 0.1 | |
| 2024 | 1 | 0 | 1.0 | 0 | 0 | 0 | 1 | 2 | 2 | 1 | 18.00 | 15.17 | 2.00 | 18.0 | 9.0 | 441 | 372 | -0.1 |
Head to head
Put Matt Krook 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.