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Seth Halvorsen
Seth Halvorsen
Albuquerque Isotopes • Pitcher
Age 26 • 6' 2" • 225 lb
Bats: R • Throws: R
MLB Debut: 2024-08-30
Born: Chicago , IL • USA
Draft: 2023
2025 Stats
W
1
L
2
ERA
4.99
WHIP
1.56
IP
39.2
SO
36
SV
11
HLD
4
G
42
GS
0
Career Stats
W
3
L
3
ERA
4.15
WHIP
1.38
IP
52.0
SO
49
SV
13
HLD
6
G
54
GS
0
Year-by-Year Pitching
Year Team GGSIP WLSVSO ERAWHIPAwards
2024 COL 12 — 12.1 2 1 2 13 1.46 0.81
2025 COL 42 — 39.2 1 2 11 36 4.99 1.56
Spring Training
Pitching
YearTeamGGSIPWLSVSOERAWHIP
2024 COL 2—2.0 ———1 0.001.50
2025 COL 10—9.1 12—10 6.751.50
2026 COL 7—5.0 ———4 21.604.00
Game Logs
Season selector loads one year at a time.
Pitching
Date Opponent IP H R ER BB SO HR
2025-08-02 vs PIT 0.0 0 0 0 1 0 0
2025-07-28 @ CLE 1.0 1 1 1 2 1 0
2025-07-25 @ BAL 1.0 0 0 0 0 0 0
2025-07-22 vs STL 1.0 0 0 0 1 1 0
2025-07-18 vs MIN 1.0 1 0 0 0 2 0
2025-07-09 @ BOS 0.0 4 5 5 1 0 2
2025-07-06 vs CWS 1.0 0 0 0 1 0 0
2025-07-03 vs HOU 1.1 3 1 1 0 1 0
2025-06-29 @ MIL 1.0 2 0 0 1 1 0
2025-06-26 vs LAD 1.0 0 0 0 0 1 0
2025-06-22 vs AZ 1.0 1 0 0 0 1 0
2025-06-19 @ WSH 0.2 1 2 1 0 0 1
2025-06-18 @ WSH 1.0 0 0 0 0 2 0
2025-06-16 @ WSH 1.0 0 0 0 1 0 0
2025-06-12 vs SF 1.0 1 0 0 1 1 0
2025-06-10 vs SF 1.0 0 0 0 0 2 0
2025-06-08 vs NYM 1.0 3 2 2 0 2 1
2025-06-03 @ MIA 1.0 0 0 0 0 0 0
2025-06-02 @ MIA 1.0 0 0 0 0 1 0
2025-05-30 @ NYM 1.0 2 1 1 0 0 1
2025-05-27 @ CHC 1.0 0 0 0 1 0 0
2025-05-25 vs NYY 1.0 1 0 0 1 1 0
2025-05-23 vs NYY 1.0 0 0 0 1 1 0
2025-05-19 vs PHI 0.2 5 4 4 0 1 1
2025-05-17 @ AZ 1.0 0 0 0 1 0 0
2025-05-16 @ AZ 0.1 2 1 1 1 0 0
2025-05-11 vs SD 1.0 0 0 0 0 1 0
2025-05-09 vs SD 1.0 0 0 0 0 2 0
2025-05-07 vs DET 1.2 1 0 0 1 3 0
2025-05-04 @ SF 0.1 1 0 0 0 0 0
2025-04-30 vs ATL 1.0 0 0 0 0 2 0
2025-04-29 vs ATL 1.0 2 1 1 0 0 0
2025-04-26 vs CIN 1.0 0 0 0 0 0 0
2025-04-25 vs CIN 1.0 0 0 0 0 1 0
2025-04-22 @ KC 1.0 2 1 1 0 0 0
2025-04-20 vs WSH 1.1 1 0 0 0 2 0
2025-04-15 @ LAD 1.0 3 1 1 1 0 0
2025-04-10 vs MIL 1.0 0 0 0 1 1 0
2025-04-09 vs MIL 0.1 2 6 3 3 1 1
2025-04-04 vs ATH 2.0 1 0 0 0 2 0
2025-04-02 @ PHI 0.2 1 0 0 1 1 0
2025-03-29 @ TB 1.1 0 0 0 0 1 0
Transactions
Entire history • newest first.
2026-03-25
Colorado Rockies optioned RHP Seth Halvorsen to Albuquerque Isotopes.
2025-09-29
Colorado Rockies activated RHP Seth Halvorsen from the 15-day injured list.
2025-08-03
Colorado Rockies placed RHP Seth Halvorsen on the 15-day injured list. Right elbow strain.
2025-04-16
RHP Seth Halvorsen changed number to 54.
2025-04-15
RHP Seth Halvorsen changed number to 42.
2024-08-30
Colorado Rockies selected the contract of RHP Seth Halvorsen from Albuquerque Isotopes.
2024-03-11
RHP Seth Halvorsen assigned to Colorado Rockies.
2023-07-18
Colorado Rockies signed RHP Seth Halvorsen.
Scouting Report
Statcast-style percentiles • Basenerd theme
Season 2025
Ready
Basic Line
Season / Game
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Pitch Arsenal
Usage • Velo • Break • Spin • xwOBA
Pitch N Use% Velo HB IVB Spin xwOBA Whiff% Zone% Chase% BNStuff+ BNCtrl+
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Notes
Primary pitch summary
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Movement Profile (Induced Break)
Pitcher's View: HB vs Rise / Drop (in)
Circles: 12/18/24 in • Dots = pitch types (size ~ pitch count)
Pitch Location Heatmaps
KDE-style blur • fixed zone • catcher POV
vs. LHH
vs. RHH
Zone: left -0.7083 / right 0.7083 • bot 1.595 / top 3.394 • Domain: X [-2,2], Z [0,5]
Statcast Game Log
Per-game pitch metrics from Statcast
Date Pitches Velo BNStuff+ BNCtrl+ Whiff% Zone% Chase% K% BB% xwOBA
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