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Seth Halvorsen COL RP R 15IL 

Born: 02/18/2000 Age: 25

FanGraphs Player Page

2025 OPL OPL Player Page

Signed By

Wyoming State Penitentiary AllStars for $6

On MLB 40-man: YES
Acquired: Drafted 7th Rd '23

Wed 8/27 Thu 8/28 Fri 8/29
@HOU 0-1 7 @HOU 2:10 PM EDT CHC 8:40 PM EDT

Positions
RP
2026 Earned Positions
RP

All Leagues
Average $2.36 Median $1.00
Old School (5x5)
Average $2.76 Median $2.00

All Leagues
Average $2.00 Median $2.00
Old School (5x5)
Average $2.50 Median $2.00

Roster%
20.49%
Change
7Day 2.14%
30Day 15.6%

2025 OPL 2025 OPL Round 7
OPL Roster%
0.00%
OPL Average Salary
$0.00


August 21, 2025 9:33 AM : Halvorsen (elbow) is continuing his rehab, but he will not begin the next steps toward his return to the field until early September, MLB.com reports.
Analysis: The Rockies continue to say that Halvorsen could return this season, but it appears that he will only be available for a few weeks at best. His role upon his return could also be murky, as Victor Vodnik has turned in five consecutive scoreless appearances, piling up four saves and a win.

MLB Stats

Pitching

YearTeamGGSIP WINS SV K ERA WHIP
2024COL12012.122131.459460.81081
2025COL42039.2111364.991601.56303

MILB Stats

Pitching

YearTeamGGSIP WINS SV K ERA WHIP
2023COL (CPX)202.12030.000001.28572
2023COL (A+)505.00053.600001.40000
2023COL (AA)606.00053.000001.33333
2024COL (AA)33035.148414.839621.50000
2024COL (AAA)809.011153.000001.33333

Recent Games

Last 10 MLB Games

DateTeamOpponentGSWinSaveHoldIPTBF RERHKBBHBPHR
Aug 2, 2025 COL PIT 0 0 0 0 0.0 1 0 0 0 0 1 0 0
Jul 28, 2025 COL @CLE 0 0 1 0 1.0 5 1 1 1 1 2 0 0
Jul 25, 2025 COL @BAL 0 0 1 0 1.0 3 0 0 0 0 0 0 0
Jul 22, 2025 COL STL 0 0 0 0 1.0 4 0 0 0 1 1 0 0
Jul 18, 2025 COL MIN 0 0 1 0 1.0 4 0 0 1 2 0 0 0
Jul 9, 2025 COL @BOS 0 0 0 0 0.0 5 5 5 4 0 1 0 2
Jul 6, 2025 COL CHW 0 0 1 0 1.0 4 0 0 0 0 1 0 0
Jul 3, 2025 COL HOU 0 0 1 0 1.1 7 1 1 3 1 0 0 0
Jun 29, 2025 COL @MIL 0 0 0 0 1.0 6 0 0 2 1 1 0 0
Jun 26, 2025 COL LAD 0 0 0 0 1.0 3 0 0 0 1 0 0 0
Totals 0 0 5 0 8.1 42 7 7 11 7 7 0 2

Last 10 MILB Games

DateLevelTeamOpponentGSWinSave IPTBFRERHKBBHBPHR
Aug 27, 2024 AAA ABQ RNO 0 0 0 1.0 4 0 0 0 3 1 0 0
Aug 23, 2024 AAA ABQ @SUG 0 0 0 1.0 4 0 0 0 2 1 0 0
Aug 22, 2024 AAA ABQ @SUG 0 0 1 1.0 3 0 0 0 0 0 0 0
Aug 18, 2024 AAA ABQ @RR 0 0 0 1.0 3 0 0 0 3 0 0 0
Aug 15, 2024 AAA ABQ @RR 0 1 0 1.0 7 2 2 5 1 0 0 0
Aug 10, 2024 AAA ABQ SAC 0 0 0 2.0 8 0 0 1 2 1 0 0
Aug 8, 2024 AAA ABQ SAC 0 0 0 1.0 3 0 0 0 2 0 0 0
Aug 3, 2024 AAA ABQ @LV 0 0 0 1.0 6 1 1 2 2 1 0 1
Jul 30, 2024 AA HFD @REA 0 0 0 0.2 5 1 1 2 0 2 0 0
Jul 26, 2024 AA HFD HBG 0 1 0 1.0 4 1 1 1 1 0 0 0
Totals 0 2 1 10.2 47 5 5 11 16 6 0 1

Avg Salary & Roster%

Last 30 days

2026 Position Eligibility Progress

To gain eligibility, a player must have 5 GS or 10 G at a position in the majors, or 20 G at a position in the minors.

Transaction History

Date Transaction Type Team Salary
March 16, 2025 8:26 PM add @BuntSingles $1
April 30, 2025 9:42 AM cut @BuntSingles $1
July 2, 2025 11:13 AM add Wyoming State Penitentiary AllStars $6

Recent Trades for Seth Halvorsen in Old School (5x5)

Date Proposing Team Proposing Team Gives Accepting Team Accepting Team Gives
July 8, 2025 1:01 PM Black Beard's Delight Clayton Kershaw LAD SP L $1 
Yu Darvish SDP SP R $4 
Seth Halvorsen COL RP R $4 15IL 
$8 loan 		Luck Dragons James Tibbs III LAD AA OF L $1
April 16, 2025 10:15 AM Sandlot Legend Mason Miller ATH RP R $13
 Rock River Sharks 🦈 Tommy Kahnle DET RP R $6
Jhoan Duran MIN RP R $14 
Seth Halvorsen COL RP R $4 15IL 
$11 loan
April 4, 2025 4:12 PM Buster Olney Fans Luke Weaver NYY RP R $4
Austin Riley ATL 3B R $42 10IL 
Seth Halvorsen COL RP R $10 15IL 
$19 loan 		Never Endy Story Jackson Jobe DET SP R $26 60IL
Cam Smith HOU 3B/OF R $10 
March 30, 2025 11:52 AM The Reggie Jefferson's Seth Halvorsen COL RP R $3 15IL 
 Reverse Cowgill 🏇🏻 Masataka Yoshida BOS Util L $15 
$20 loan
March 17, 2025 10:29 AM Velachery (she/her) Cristopher Sanchez PHI SP L $5 
 SeaWolves Jesus Sanchez MIA OF L $3 
Joey Bart PIT C R $1 
Jack Leiter TEX SP/RP R $4 
Seth Halvorsen COL RP R $1 15IL 
March 12, 2025 9:02 AM Van Buren Boys Brandon Pfaadt ARI SP R $5 
$1 loan 		Kramerica Industries Seth Halvorsen COL RP R $4 15IL