Pitcher · 2025
Casey Kelly
- Age
- 36
- B/T
- R/R
- Height
- 6' 3"
- Weight
- 215 lb
- Number
- #60
- Born
- October 4, 1989 in Sarasota, FL, USA
- MLB debut
- August 27, 2012
- Drafted
- 2008, round 1
- High school
- Sarasota
- dbWAR
- -.0 2 season(s)
- IP
- 1.2
- ERA
- 0.00
- FIP
- 4.94
- K/9
- 0.0
- FIP−
- 119 100 = avg
Casey Kelly is a relief pitcher for the Arizona Diamondbacks. In 2025 he struck out 0 batters over 1.2 innings across 2 appearances, going 0-0. His ERA of 0.00 was 100.0% lower than the league average of 4.16. Stripping out defence, his 4.94 FIP suggests that his ERA had some help behind him. He missed bats on 20.0% of swings (8.3% of every pitch he threw), walked 16.7% of the batters he faced and struck out 0.0%. 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, 2025.
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 | 1 | 1 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0.0% |
| vs RHB | 5 | 4 | 1 | 0 | 1 | 0 | .250 | .400 | .250 | .321 | 0.0% |
Pitch sequencing
What Casey Kelly throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Casey Kelly throws in it.
Pitch arsenal
What he throws, how hard, and how often it misses in 2025.
| Four-Seam Fastball | 10 | 91.5 | 2,281 | 40.0% | 0.0% |
Pitching
Standard and advanced, by season.
| Trend | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | 2 | 0 | 1.2 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0.00 | 4.94 | 1.20 | 0.0 | 5.4 | 0 | 119 | -0.0 | |
| 2024 | 2 | 0 | 5.1 | 0 | 0 | 1 | 5 | 3 | 4 | 1 | 5.06 | 4.67 | 1.13 | 6.8 | 1.7 | 124 | 114 | -0.0 |
Head to head
Put Casey Kelly 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.