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Jack Ralston

#79 - Relief Pitcher

Miami Marlins

Bats / Throws Right / Right
Date of Birth 8/13/1997 (29)
Height, Weight 6'6", 231 lb
Hometown Panorama City, CA

2026 Season Stats

Needs more playing time to qualify
MLB Rank MLB Average
Sv IP ERA WHIP K% BB%
0 10.2 4.22 1.22 20.0% 11.1%
219th 3
Sv
352nd 49.0
IP
200th 4.26
ERA
108th 1.35
WHIP
230th 22.5%
K%
243rd 9.8%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
93.2 7.7% 32.0% 56.4% 6.6% 4.99 3.39
269th 94.6
FB MPH
336th 12.1%
SwStr%
37th 28.5%
CSW%
26th 51.1%
Str-ICR
312th 4.7%
MTK%
130th 4.94
PLV
150th 3.53
PLA

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Jack Ralston 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
2026 MIA 11 0 10.2 0-1 0 2 4.22 1.22 6.16 5.36 4.69 3.39 20.0% 11.1% 6.7 1.69 .214 25.0% 78.4% 22.6% 54.8% 7.7% 32.0% 0.58 4.99
RP MLB Percentile 2 0 0 0-64 0 30 43 68 5 16 30 57 34 30 80 14 94 15 76 99 89 4 89 78 61
RP MLB AVG 39 2 49.0 3-3 3 7 4.26 1.35 4.22 4.23 4.29 3.53 22.5% 9.8% 8.3 1.11 .291 17.5% 72.5% 36.9% 43.8% 12.1% 28.5% 0.50 4.94
Career 11 0 10.2 0-1 0 2 4.22 1.22 6.16 5.26 4.62 3.39 20.0% 11.1% 6.7 1.69 .214 25.0% 78.4% 22.6% 54.8% 7.7% 32.0% 0.58 4.99

Jack Ralston Repertoire

2026 All
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Jack Ralston Game Log

Jack Ralston Standard

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Year Team G GS IP W-L QS Sv Hld P Strikes Balls TBF H 1B 2B 3B HR K BB HB WP
2026 MIA 11 0 10.2 0-1 0 0 2 181 116 65 45 8 5 1 0 2 9 5 0 1
RP MLB Percentile 2 0 0 0-64 0 0 30 0 0 100 0 100 100 98 47 82 1 99 84 47
RP MLB AVG 39 2 49.0 3-3 0 3 7 826 528 298 212 45 30 8 1 6 48 20 3 2
Career 11 0 10.2 0-1 0 0 2 181 116 65 45 8 5 1 0 2 9 5 0 1

Jack Ralston Advanced

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Year Team K% BB% AVG SLG OPS wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA xERA
2026 MIA 20.0% 11.1% .205 .385 .680 .302 .214 .267 .268 .388 .272 .438 83.4 81.1 6.2 6.16
RP MLB Percentile 34 30 81 51 63 62 94 88 16 5 59 7 97 99 88 5
RP MLB AVG 22.5% 9.8% .241 .390 .714 .315 .291 .321 .235 .315 .280 .358 87.7 89.2 13.2 4.22
Career 20.0% 11.1% .205 .385 .680 .302 .214 .267 .268 .388 .272 .438 83.4 81.1 6.2 6.16

Jack Ralston 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%
2026 MIA18.2% (93.2)--24.3% (84.9)---57.5% (82.4)- 18.2% 81.8%
RP MLB Percentile 11 (23) - - 51 (27) - - - 98 (9) - 1.7% 98.0%
RP MLB AVG 38.5% (94.6) 26.5% (94.0) 19.7% (89.4) 25.8% (85.9) 21.0% (82.4) 15.6% (80.2) 17.1% (86.1) 18.7% (86.6) 42.5% (61.5) 48.6% 51.2%
Career18.2% (93.2)--24.3% (84.9)---57.5% (82.4)- 18.2% 81.8%

Jack Ralston Pitch › Results

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Year Team FF CSW% SI CSW% FC CSW% SL CSW% ST CSW% CB CSW% CH CSW% FS CSW% KN CSW% Fastball CSW% Secondary CSW%
2026 MIA48.5% (4)--34.1% (1)---26.0% (9)- 48.5% 28.4%
RP MLB Percentile 100 (2) - - 73 (95) - - - 59 (43) - 99.2% 46.9%
RP MLB AVG 27.0% (30) 27.5% (12) 26.7% (14) 29.7% (26) 28.2% (18) 26.9% (14) 21.9% (18) 22.1% (19) 19.4% (9) 27.9% 28.7%
Career48.5% (4)--34.1% (1)---26.0% (9)- 48.5% 28.4%

Jack Ralston Batted Ball › Contact

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Year Team GB% LD% FB% PU% SS% Pull% Cent% Oppo% Foul Str% PC% Fl&B% Solid% Brl% ICR%
2026 MIA 54.8% 9.7% 25.8% 9.7% 22.6% 61.3% 19.4% 19.4% 14.9% 77.4% 12.9% 0.0% 9.7% 22.6%
RP MLB Percentile 89 100 61 52 99 100 0 10 6 99 99 99 13 99
RP MLB AVG 43.8% 21.7% 24.3% 10.2% 34.7% 40.9% 33.6% 25.5% 18.2% 62.8% 24.6% 5.9% 6.8% 36.9%
Career 54.8% 9.7% 25.8% 9.7% 22.6% 61.3% 19.4% 19.4% 14.9% 77.4% 12.9% 0.0% 9.7% 22.6%

Jack Ralston Batted Ball › Outcomes

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Year Team AVG wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA HR/FB ICR% IPA%
2026 MIA .205 .302 .214 .267 .268 .388 .272 .438 83.4 81.1 6.2 25.0% 22.6% 15.6%
RP MLB Percentile 81 62 94 88 16 5 59 7 97 99 88 15 99 97
RP MLB AVG .241 .315 .291 .321 .235 .315 .280 .358 87.7 89.2 13.2 17.5% 36.9% 24.5%
Career .205 .302 .214 .267 .268 .388 .272 .438 83.4 81.1 6.2 25.0% 22.6% 15.6%

Jack Ralston Approach › Plate Discipline

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Year Team Zone% Str% Swing% O-Sw% Whiff% Foul Str% Con% Z-Con% O-Con% CS% SwStr% CSW% BIP% PLUS% IPR% Str-ICR
2026 MIA 44.8% 64.1% 39.8% 20.0% 19.4% 14.9% 80.6% 80.8% 80.0% 24.3% 7.7% 32.0% 17.1% 59.7% 0.58 56.4%
RP MLB Percentile 54 51 1 0 13 6 13 76 0 99 4 89 50 68 78 92
RP MLB AVG 44.4% 63.8% 47.4% 31.7% 25.5% 18.2% 74.5% 84.0% 58.6% 16.4% 12.1% 28.5% 17.1% 58.3% 0.50 51.1%
Career 44.8% 64.1% 39.8% 20.0% 19.4% 14.9% 80.6% 80.8% 80.0% 24.3% 7.7% 32.0% 17.1% 59.7% 0.58 56.4%

Jack Ralston Approach › Locations

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Year Team Zone% aLoc% x-mLoc% gLoc% hiLoc% y-mLoc% loLoc% iLoc% oLoc% mmLoc%
2026 MIA 44.8% 33.7% 36.5% 29.8% 39.8% 21.5% 38.7% 28.7% 34.8% 7.2%
RP MLB Percentile 54 44 0 8 69 66 39 41 5 71
RP MLB AVG 44.4% 34.6% 27.0% 38.5% 36.4% 22.9% 40.8% 29.9% 43.1% 6.6%
Career 44.8% 33.7% 36.5% 29.8% 39.8% 21.5% 38.7% 28.7% 34.8% 7.2%

Jack Ralston Approach › Counts

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Year Team Early% Behind% 2-Str% Early BIP% F-Str% TF-Str% ECS% 2-Str O-Sw% PAR%
2026 MIA 59.7% 11.6% 28.7% 10.2% 50.0% 47.7% 31.5% 19.2% 17.3%
RP MLB Percentile 69 55 32 4 1 30 99 3 31
RP MLB AVG 58.5% 12.1% 30.0% 14.5% 61.1% 50.2% 21.2% 26.8% 19.2%
Career 59.7% 11.6% 28.7% 10.2% 50.0% 47.7% 31.5% 19.2% 17.3%

Jack Ralston PLV

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team P PLV QP% AP% BP% Q-BP% MTK% HP HL PLA
2026 MIA 181 4.99 45.3% 16.0% 38.7% 6.6% 6.6% -0.3 -2 3.39
RP MLB Percentile 0 61 41 27 26 26 11 57 62 57
RP MLB AVG 826 4.94 45.9% 17.4% 36.7% 9.2% 4.7% 0.7 0 3.53
Career 181 4.99 45.3% 16.0% 38.7% 6.6% 6.6% -0.3 -2 3.39
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