Arizona Diamondbacks· #29· Pitcher
Merrill Kelly “Mert”
Bats R · Throws R·Age 37 (Oct 14, 1988)·6' 2", 202 lb·Houston, TX, USA
2026 Pitching
ERA
5.38
WHIP
1.51
IP
93.2
K%
14.4
BB%
9.2
K/9
5.67
W-L
7-8
GS
16
SV
0
HLD
0
DiamondIQ WAR
93.7 IP · 2026
-0.8
-8.0 runs above replacement
FIP · 5.89 (park 1.03)0.0
vs replacement · SP, 93.7 IP-8.0
FIP-based runs above replacement, park-adjusted, scaled by innings over runs-per-win. Reliever leverage is simplified (v1). Full methodology.
Pitch Arsenal · Statcast
Four-Seam26% · 92.2 · 14% whiff
Changeup26% · 88.5 · 31% whiff
Cutter15% · 91.2 · 13% whiff
Curveball12% · 82.6 · 23% whiff
Slider11% · 86.5 · 35% whiff
Sinker10% · 92.4 · 7% whiff
Career Pitching
| Yr | Tm | W | L | ERA | G | GS | SV | IP | SO | BB | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | Arizona Diamondbacks | 7 | 8 | 5.38 | 16 | 16 | 0 | 93.2 | 59 | 38 | 1.51 | 5.67 |
| 2025 | — | 12 | 9 | 3.52 | 32 | 32 | 0 | 184.0 | 167 | 48 | 1.11 | 8.17 |
| 2025 | Texas Rangers | 3 | 3 | 4.23 | 10 | 10 | 0 | 55.1 | 46 | 10 | 1.25 | 7.48 |
| 2025 | Arizona Diamondbacks | 9 | 6 | 3.22 | 22 | 22 | 0 | 128.2 | 121 | 38 | 1.06 | 8.46 |
| 2024 | Arizona Diamondbacks | 5 | 1 | 4.03 | 13 | 13 | 0 | 73.2 | 63 | 19 | 1.17 | 7.70 |
Recent Games
Jul 9 @ San Diego PadresW
7.0 IP, 1 ER, 6 K, 3 BB
Jul 4 vs Milwaukee BrewersW
5.0 IP, 2 ER, 6 K, 2 BB
Jun 28 @ Tampa Bay RaysL
6.0 IP, 5 ER, 3 K, 2 BB
Jun 22 @ St. Louis CardinalsL
6.0 IP, 3 ER, 2 K, 3 BB
Jun 16 vs Los Angeles AngelsL
5.1 IP, 6 ER, 4 K, 1 BB
Jun 11 @ Miami MarlinsL
6.0 IP, 2 ER, 1 K, 2 BB
Jun 5 vs Washington NationalsL
5.0 IP, 7 ER, 4 K, 3 BB
May 31 @ Seattle MarinersL
5.1 IP, 2 ER, 2 K, 2 BB
May 25 @ San Francisco GiantsW
7.0 IP, 2 ER, 4 K, 2 BB
May 20 vs San Francisco GiantsW
6.0 IP, 3 ER, 4 K, 0 BB