Colorado Rockies· #54· Pitcher
Seth Halvorsen
Bats R · Throws R·Age 26 (Feb 18, 2000)·6' 2", 243 lb·Chicago, IL, USA
2026 Pitching
ERA
4.74
WHIP
1.95
IP
19.0
K%
17.7
BB%
15.6
K/9
8.05
W-L
0-1
GS
0
SV
0
HLD
2
DiamondIQ WAR
19.0 IP · 2026
-0.1
-1.3 runs above replacement
FIP · 5.72 (park 1.15)0.0
vs replacement · RP, 19.0 IP-1.3
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-Seam63% · 98.8 · 13% whiff
Slider29% · 86.2 · 43% whiff
Splitter8% · 90.2 · 38% whiff
Career Pitching
| Yr | Tm | W | L | ERA | G | GS | SV | IP | SO | BB | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | Colorado Rockies | 0 | 1 | 4.74 | 21 | 0 | 0 | 19.0 | 17 | 15 | 1.95 | 8.05 |
| 2025 | Colorado Rockies | 1 | 2 | 4.99 | 42 | 0 | 11 | 39.2 | 36 | 21 | 1.56 | 8.17 |
| 2024 | Colorado Rockies | 2 | 1 | 1.46 | 12 | 0 | 2 | 12.1 | 13 | 2 | 0.81 | 9.49 |
Recent Games
Jun 30 vs Miami MarlinsL
1.0 IP, 3 ER, 0 K, 1 BB
Jun 28 @ Minnesota TwinsL
0.2 IP, 1 ER, 0 K, 0 BB
Jun 26 @ Minnesota TwinsL
1.0 IP, 0 ER, 1 K, 0 BB
Jun 15 @ Chicago CubsL
0.0 IP, 0 ER, 0 K, 1 BB
Jun 13 @ AthleticsL
0.2 IP, 0 ER, 1 K, 1 BB
Jun 12 @ AthleticsL
0.2 IP, 2 ER, 1 K, 1 BB
Jun 9 vs Chicago CubsW
1.0 IP, 0 ER, 0 K, 1 BB
Jun 5 vs Milwaukee BrewersL
0.2 IP, 0 ER, 1 K, 1 BB
Jun 3 @ Los Angeles AngelsL
1.0 IP, 0 ER, 0 K, 1 BB
Jun 1 @ Los Angeles AngelsW
1.1 IP, 0 ER, 1 K, 0 BB