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Seth Halvorsen

#56 - Relief Pitcher

Los Angeles Dodgers

Bats / Throws Right / Right
Date of Birth 2/18/2000 (26)
Height, Weight 6'2", 243 lb
Hometown Chicago, IL

2026 Season Stats

MLB Rank MLB Average
Sv IP ERA WHIP K% BB%
0 20.0 4.50 1.90 17.0% 16.0%
210th 3
Sv
293rd 40.0
IP
215th 4.29
ERA
335th 1.35
WHIP
290th 22.4%
K%
336th 9.9%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
98.9 10.6% 23.6% 44.6% 4.7% 4.54 5.68
9th 94.7
FB MPH
240th 12.1%
SwStr%
333rd 28.5%
CSW%
336th 51.1%
Str-ICR
183rd 4.7%
MTK%
352nd 4.94
PLV
351st 3.57
PLA
Holds List
Rank
123rd

Articles

8/12/2026Fantasy Baseball Relief Pitcher Roundup: 8/11Rick Graham

7/21/2026MLB News & Moments: Caleb Durbin Dinger Pushes Red Sox's Streak To 14Steve Drumwright

7/5/2026MLB News & Moments: Yordan Calls GameJosh Shaw

6/29/2026Fantasy Baseball Relief Pitcher Roundup: 6/28Rick Graham

6/27/2026Fantasy Baseball Relief Pitcher Roundup: 6/26Rick Graham

See More Articles
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Seth Halvorsen Overview

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team G GS IP W-L Sv Hld ERA WHIP xERA FIP xFIP PLA K% BB% H/9 HR/9 BABIP HR/FB% LOB% ICR% GB% SwStr% CSW% IPR% PLV
2024 COL 12 0 12.1 2-1 2 2 1.46 0.81 2.75 3.91 2.94 2.45 28.3% 4.3% 5.8 1.46 .214 33.3% 97.6% 23.3% 48.3% 15.7% 33.7% 0.69 5.18
2025 COL 42 0 39.2 1-2 11 4 4.99 1.56 5.72 5.23 4.40 3.68 20.9% 11.6% 9.3 1.59 .315 29.2% 69.0% 32.8% 56.5% 14.2% 28.6% 0.46 4.82
2026 COL/LAD 22 0 20.0 1-1 0 2 4.50 1.90 6.63 5.73 5.48 5.68 17.0% 16.0% 9.9 1.35 .297 21.4% 82.8% 43.3% 47.0% 10.6% 23.6% 0.32 4.54
RP MLB Percentile 30 0 15 21-57 0 37 38 5 3 11 10 1 18 4 19 32 42 30 88 11 65 30 5 5 0
RP MLB AVG 32 2 40.0 2-2 3 5 4.29 1.35 4.25 4.27 4.32 3.57 22.4% 9.9% 8.3 1.14 .288 17.9% 72.4% 36.9% 43.6% 12.1% 28.5% 0.50 4.94
Career 76 0 72.0 4-4 13 8 4.25 1.53 5.46 5.13 4.44 4.02 20.8% 11.9% 8.9 1.50 .295 27.3% 76.4% 34.7% 52.4% 13.3% 27.8% 0.45 4.78

Seth Halvorsen Repertoire

2024 2025 2026 All
Hide MLB Percentile | Hide MLB Average

Seth Halvorsen Game Log

Seth Halvorsen Standard

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team G GS IP W-L QS Sv Hld P Strikes Balls TBF H 1B 2B 3B HR K BB HB WP
2024 COL 12 0 12.1 2-1 0 2 2 178 120 58 46 8 6 0 0 2 13 2 1 0
2025 COL 42 0 39.2 1-2 0 11 4 636 398 238 172 41 23 10 1 7 36 20 0 3
2026 COL/LAD 22 0 20.0 1-1 0 0 2 386 230 156 100 22 14 4 1 3 17 16 0 2
RP MLB Percentile 30 0 15 21-57 0 0 37 21 17 73 22 74 75 66 16 57 15 42 79 24
RP MLB AVG 32 2 40.0 2-2 0 3 5 682 435 247 175 37 24 7 1 5 39 17 2 2
Career 76 0 72.0 4-4 0 13 8 1,200 748 452 318 71 43 14 2 12 66 38 1 5

Seth Halvorsen Advanced

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team K% BB% AVG SLG OPS wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA xERA
2024 COL 28.3% 4.3% .186 .326 .565 .250 .214 .267 .217 .263 .295 .335 92.1 79.7 15.4 2.75
2025 COL 20.9% 11.6% .273 .493 .850 .363 .315 .357 .279 .372 .318 .433 88.2 86.6 6.9 5.72
2026 COL/LAD 17.0% 16.0% .262 .440 .820 .357 .297 .328 .307 .401 .353 .441 89.9 89.0 12.3 6.63
RP MLB Percentile 18 4 31 29 19 19 42 43 3 3 2 9 15 54 58 3
RP MLB AVG 22.4% 9.9% .240 .392 .716 .316 .288 .320 .236 .317 .280 .360 87.7 89.2 13.3 4.25
Career 20.8% 11.9% .256 .451 .798 .347 .295 .335 .278 .367 .326 .424 89.3 86.4 9.8 5.46

Seth Halvorsen Pitch › Mix

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Year Team FF% (MPH) SI% (MPH) FC% (MPH) SL% (MPH) ST% (MPH) CB% (MPH) CH% (MPH) FS% (MPH) KN% (MPH) Fastball% Secondary%
2024 COL37.1% (99.9)19.1% (100.1)-15.7% (88.9)---28.1% (89.4)- 56.2% 43.8%
2025 COL53.8% (100.0)0.6% (99.3)-19.7% (89.4)---25.8% (90.8)- 54.4% 45.4%
2026 COL/LAD63.2% (98.9)--29.0% (86.3)---7.8% (90.2)- 63.2% 36.8%
RP MLB Percentile 95 (96) - - 64 (49) - - - 27 (87) - 88.7% 11.1%
RP MLB AVG 38.0% (94.7) 26.4% (93.9) 20.3% (89.4) 25.7% (85.6) 21.4% (82.5) 16.5% (79.5) 17.2% (86.2) 17.8% (86.5) 32.6% (68.2) 48.3% 51.5%
Career54.3% (99.6)3.2% (100.0)-22.1% (88.0)---20.3% (90.4)- 57.5% 42.4%

Seth Halvorsen Pitch › Results

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team FF CSW% SI CSW% FC CSW% SL CSW% ST CSW% CB CSW% CH CSW% FS CSW% KN CSW% Fastball CSW% Secondary CSW%
2024 COL31.8% (7)38.2% (4)-32.1% (7)---34.0% (10)- 34.0% 33.3%
2025 COL30.4% (40)25.0% (0)-27.2% (22)---26.2% (28)- 30.3% 26.6%
2026 COL/LAD19.3% (14)--29.5% (21)---36.7% (6)- 19.3% 31.0%
RP MLB Percentile 7 (61) - - 47 (32) - - - 91 (49) - 1.4% 68.8%
RP MLB AVG 27.0% (25) 27.2% (10) 26.4% (12) 29.3% (21) 28.1% (16) 27.3% (11) 21.7% (15) 23.1% (17) 22.1% (9) 27.8% 28.7%
Career26.4% (61)36.8% (4)-28.7% (50)---29.1% (44)- 27.0% 28.9%

Seth Halvorsen Batted Ball › Contact

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team GB% LD% FB% PU% SS% Pull% Cent% Oppo% Foul Str% PC% Fl&B% Solid% Brl% ICR%
2024 COL 48.3% 20.7% 20.7% 10.3% 31.0% 26.7% 33.3% 40.0% 16.9% 75.8% 13.8% 3.4% 6.9% 23.3%
2025 COL 56.5% 16.5% 20.9% 6.1% 31.3% 46.6% 25.0% 28.4% 15.7% 66.9% 19.1% 4.3% 9.6% 32.8%
2026 COL/LAD 47.0% 24.2% 21.2% 7.6% 42.4% 34.3% 32.8% 32.8% 18.7% 56.0% 33.3% 4.5% 6.1% 43.3%
RP MLB Percentile 65 26 28 29 9 14 43 93 61 11 3 66 59 11
RP MLB AVG 43.6% 21.7% 24.5% 10.3% 34.8% 41.0% 33.7% 25.2% 18.1% 62.8% 24.4% 5.8% 7.0% 36.9%
Career 52.4% 19.5% 21.0% 7.1% 34.8% 39.9% 28.6% 31.5% 16.8% 64.8% 22.9% 4.3% 8.1% 34.7%

Seth Halvorsen Batted Ball › Outcomes

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team AVG wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA HR/FB ICR% IPA%
2024 COL .186 .250 .214 .267 .217 .263 .295 .335 92.1 79.7 15.4 33.3% 23.3% 15.2%
2025 COL .273 .363 .315 .357 .279 .372 .318 .433 88.2 86.6 6.9 29.2% 32.8% 22.1%
2026 COL/LAD .262 .357 .297 .328 .307 .401 .353 .441 89.9 89.0 12.3 21.4% 43.3% 29.0%
RP MLB Percentile 31 19 42 43 3 3 2 9 15 54 58 30 11 17
RP MLB AVG .240 .316 .288 .320 .236 .317 .280 .360 87.7 89.2 13.3 17.9% 36.9% 24.5%
Career .256 .347 .295 .335 .278 .367 .326 .424 89.3 86.4 9.8 27.3% 34.7% 23.3%

Seth Halvorsen Approach › Plate Discipline

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team Zone% Str% Swing% O-Sw% Whiff% Foul Str% Con% Z-Con% O-Con% CS% SwStr% CSW% BIP% PLUS% IPR% Str-ICR
2024 COL 53.9% 67.4% 49.4% 24.4% 31.8% 16.9% 68.2% 77.9% 35.0% 18.0% 15.7% 33.7% 16.9% 62.9% 0.69 59.6%
2025 COL 45.4% 62.6% 48.1% 32.3% 29.4% 15.7% 70.6% 82.0% 50.9% 14.5% 14.2% 28.6% 18.2% 56.1% 0.46 50.6%
2026 COL/LAD 40.7% 59.6% 46.6% 30.1% 22.8% 18.7% 77.2% 84.7% 65.2% 13.0% 10.6% 23.6% 17.4% 53.9% 0.32 44.6%
RP MLB Percentile 10 8 40 40 32 61 32 46 22 7 30 5 55 5 5 5
RP MLB AVG 44.5% 63.7% 47.4% 31.6% 25.6% 18.1% 74.4% 83.8% 58.7% 16.3% 12.1% 28.5% 17.1% 58.3% 0.50 51.1%
Career 45.2% 62.3% 47.8% 30.5% 27.7% 16.8% 72.3% 82.0% 54.2% 14.5% 13.3% 27.8% 17.8% 56.4% 0.45 50.0%

Seth Halvorsen Approach › Locations

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Year Team Zone% aLoc% x-mLoc% gLoc% hiLoc% y-mLoc% loLoc% iLoc% oLoc% mmLoc%
2024 COL 53.9% 43.8% 28.1% 28.1% 25.8% 29.2% 44.9% 21.3% 50.6% 9.6%
2025 COL 45.4% 45.4% 24.4% 30.2% 30.2% 23.8% 46.0% 27.9% 47.7% 6.1%
2026 COL/LAD 40.7% 26.4% 30.1% 43.5% 46.6% 19.7% 33.7% 25.6% 44.3% 7.3%
RP MLB Percentile 10 8 16 81 91 86 16 17 56 74
RP MLB AVG 44.5% 34.6% 27.0% 38.4% 36.5% 22.9% 40.6% 29.8% 43.2% 6.6%
Career 45.2% 39.0% 26.8% 34.2% 34.9% 23.3% 41.9% 26.2% 47.0% 7.0%

Seth Halvorsen Approach › Counts

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Year Team Early% Behind% 2-Str% Early BIP% F-Str% TF-Str% ECS% 2-Str O-Sw% PAR%
2024 COL 54.5% 10.7% 36.0% 12.4% 69.6% 56.5% 24.7% 7.8% 20.3%
2025 COL 61.6% 11.3% 27.7% 16.3% 59.9% 47.1% 18.6% 26.1% 20.5%
2026 COL/LAD 60.1% 14.8% 27.2% 14.7% 56.1% 43.9% 15.5% 25.7% 16.2%
RP MLB Percentile 75 14 18 54 16 11 3 41 24
RP MLB AVG 58.5% 12.2% 29.9% 14.4% 60.8% 50.1% 21.1% 26.7% 19.1%
Career 60.1% 12.3% 28.8% 15.3% 60.1% 47.5% 18.4% 22.6% 19.1%

Seth Halvorsen PLV

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team P PLV QP% AP% BP% Q-BP% MTK% HP HL PLA
2024 COL 178 5.18 50.0% 16.9% 33.1% 16.9% 6.2% -1.0 -3 2.45
2025 COL 636 4.82 42.1% 20.9% 36.9% 5.2% 5.0% 10.0 +9 3.68
2026 COL/LAD 386 4.54 37.3% 19.4% 43.3% -6.0% 4.7% 0.7 +3 5.68
RP MLB Percentile 21 0 1 76 2 2 46 50 33 1
RP MLB AVG 682 4.94 45.9% 17.4% 36.7% 9.1% 4.7% 0.6 0 3.57
Career 1,200 4.78 41.8% 19.8% 38.4% 3.3% 5.1% 9.7 +9 4.02
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