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Seth Halvorsen
Colorado Rockies · RHP
#
34
Team
COL · P
Debut
2024 · 3 MLB seasons

Seth Halvorsen

Age 26
Contract Value $686,651/yr
Size 6' 2" · 243
Throws RHP
Bats Right
From Chicago, IL
0-1 W-L
Team profile →Rotation →
4.74
ERA
1.95
WHIP
8.1
K/9
7.1
BB/9
19.0
Innings
0
Starts
15-day ILSeth Halvorsen is on the injured list since Jul 4, 2026.
Seth Halvorsen season snapshot
Season stats
ERA
4.74
WHIP
1.95
K/9
8.1
BB/9
7.1
HR/9
1.42
IP
19.0
GS
0
W-L
0-1
Seth Halvorsen ERA trend
Last 6
Earned runs per start
Avg 1.0 ER / start
↑ ERA trending up over recent starts.

Seth Halvorsen game log

2026 season
DateOpponentIPHERKBBERA
Jun 30Miami Marlins1430127.00
Jun 28Minnesota Twins0.2310045.00
Jun 26Minnesota Twins100100.00
Jun 15Chicago Cubs01001—
Jun 13Athletics0.200110.00
Jun 12Athletics0.2221190.00
Jun 9Chicago Cubs100010.00
Jun 5Milwaukee Brewers0.200110.00
Jun 3Los Angeles Angels110010.00
Jun 1Los Angeles Angels1.110100.00
May 29San Francisco Giants1.210200.00
May 24Arizona Diamondbacks1321018.00
May 23Arizona Diamondbacks0.100100.00
May 21Arizona Diamondbacks100220.00
May 19Texas Rangers121029.00
May 17Arizona Diamondbacks110200.00
May 15Arizona Diamondbacks110110.00
May 12Pittsburgh Pirates100100.00
May 10Philadelphia Phillies121019.00
Apr 26New York Mets100010.00
Apr 23San Diego Padres100210.00

Seth Halvorsen season splits

Home / away / vs L-R · 2026
Home ERA
ERA4.32
Away ERA
ERA5.06
vs Left AVG
AVG0.406
vs Right AVG
AVG0.184
Seth Halvorsen monthly splits
ERA · IP · K · BB · WHIP per month
MonthGSERAIPKBBWHIP
Apr00.002.0221.00
May04.009.01061.78
Jun06.758.0572.38
Pitch arsenal
Usage and average velocity · 2026
FFFour-seam FB
62.7%98.8 mph
SLSlider
29.3%86.2 mph
FSSplitter
8.0%90.2 mph

Performance vs teams

2026 starts · sorted by ERA
TeamERAGS
Chicago Cubs
0.00
1
Milwaukee Brewers
0.00
1
Los Angeles Angels
0.00
2
San Francisco Giants
0.00
1
Pittsburgh Pirates
0.00
1
New York Mets
0.00
1
San Diego Padres
0.00
1
Arizona Diamondbacks
4.39
5
Minnesota Twins
7.50
2
Texas Rangers
9.00
1
Philadelphia Phillies
9.00
1
Miami Marlins
27.00
1
Athletics
45.00
2

Hot / Cold zones

Opponent results by strike zone area

AVG by zone

  • Zone 01: .250
  • Zone 02: .667
  • Zone 03: .500
  • Zone 04: .250
  • Zone 05: .200
  • Zone 06: .400
  • Zone 07: .000
  • Zone 08: .364
  • Zone 09: .143
  • Zone 11: .200
  • Zone 12: .250
  • Zone 13: .250
  • Zone 14: .000

OPS by zone

  • Zone 01: 1.250
  • Zone 02: 1.833
  • Zone 03: 1.000
  • Zone 04: .500
  • Zone 05: .533
  • Zone 06: 1.200
  • Zone 07: .000
  • Zone 08: .818
  • Zone 09: .714
  • Zone 11: .667
  • Zone 12: .667
  • Zone 13: .750
  • Zone 14: .500

SLG by zone

  • Zone 01: 1.000
  • Zone 02: 1.167
  • Zone 03: .500
  • Zone 04: .250
  • Zone 05: .333
  • Zone 06: .800
  • Zone 07: .000
  • Zone 08: .455
  • Zone 09: .571
  • Zone 11: .200
  • Zone 12: .250
  • Zone 13: .500
  • Zone 14: .000

OBP by zone

  • Zone 01: .250
  • Zone 02: .667
  • Zone 03: .571
  • Zone 04: .250
  • Zone 05: .200
  • Zone 06: .400
  • Zone 07: .000
  • Zone 08: .364
  • Zone 09: .143
  • Zone 11: .556
  • Zone 12: .500
  • Zone 13: .250
  • Zone 14: .500

numberOfStrikes by zone

  • Zone 01: 14.00
  • Zone 02: 21.00
  • Zone 03: 10.00
  • Zone 04: 10.00
  • Zone 05: 13.00
  • Zone 06: 16.00
  • Zone 07: 3.00
  • Zone 08: 10.00
  • Zone 09: 15.00
  • Zone 11: 10.00
  • Zone 12: 11.00
  • Zone 13: 6.00
  • Zone 14: 20.00

numberOfPitches by zone

  • Zone 01: 17.00
  • Zone 02: 26.00
  • Zone 03: 17.00
  • Zone 04: 13.00
  • Zone 05: 28.00
  • Zone 06: 20.00
  • Zone 07: 6.00
  • Zone 08: 20.00
  • Zone 09: 20.00
  • Zone 11: 60.00
  • Zone 12: 51.00
  • Zone 13: 16.00
  • Zone 14: 81.00

earnedRunAverage by zone

  • Zone 01: -
  • Zone 02: -
  • Zone 03: -
  • Zone 04: -
  • Zone 05: -
  • Zone 06: -
  • Zone 07: -
  • Zone 08: -
  • Zone 09: -
  • Zone 11: -
  • Zone 12: -
  • Zone 13: -
  • Zone 14: -
0.4000.3000.200
.250.200.250.000.250.667.500.250.200.400.000.364.143
0.4000.3000.200

Last 10 matchups

vs Miami Marlins — 2026-06-30
3ER · 1ip
→
vs Minnesota Twins — 2026-06-28
1ER · 0.2ip
→
vs Minnesota Twins — 2026-06-26
0ER · 1ip
→
vs Chicago Cubs — 2026-06-15
0ER · 0ip
→
vs Athletics — 2026-06-13
0ER · 0.2ip
→
vs Athletics — 2026-06-12
2ER · 0.2ip
→
vs Chicago Cubs — 2026-06-09
0ER · 1ip
→
vs Milwaukee Brewers — 2026-06-05
0ER · 0.2ip
→
vs Los Angeles Angels — 2026-06-03
0ER · 1ip
→
vs Los Angeles Angels — 2026-06-01
0ER · 1.1ip
→

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