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Jack Sinclair

#49 - Relief Pitcher

Washington Nationals

Bats / Throws Right / Right
Date of Birth 5/3/1999 (27)
Height, Weight 6'4", 170 lb
Hometown Coral Springs, FL

2026 Season Stats

Needs more playing time to qualify
MLB Rank MLB Average
Sv IP ERA WHIP K% BB%
0 1.0 0.00 0.00 33.3% 0.0%
215th 3
Sv
351st 47.0
IP
1st 4.22
ERA
1st 1.35
WHIP
12th 22.6%
K%
1st 9.9%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
97.7 6.3% 18.8% 56.3% 6.3% 4.95 3.34
34th 94.6
FB MPH
350th 12.1%
SwStr%
351st 28.5%
CSW%
25th 51.2%
Str-ICR
299th 4.7%
MTK%
165th 4.94
PLV
141st 3.49
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Jack Sinclair 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 WSH 1 0 1.0 0-0 0 0 0.00 0.00 0.78 1.10 1.10 3.34 33.3% 0.0% 0.0 0.00 .000 - - 50.0% 50.0% 6.3% 18.8% 0.50 4.95
RP MLB Percentile 0 0 0 0-84 0 0 100 100 100 99 100 59 97 100 100 97 100 0 100 1 78 0 0 51 50
RP MLB AVG 37 2 47.0 3-2 3 6 4.22 1.35 4.22 4.22 4.28 3.49 22.6% 9.9% 8.3 1.10 .289 17.6% 72.6% 36.8% 43.7% 12.1% 28.5% 0.50 4.94
Career 1 0 1.0 0-0 0 0 0.00 0.00 0.78 1.10 1.10 3.34 33.3% 0.0% 0.0 0.00 .000 - - 50.0% 50.0% 6.3% 18.8% 0.50 4.95

Jack Sinclair Repertoire

2026 All
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Jack Sinclair Game Log

Jack Sinclair 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 WSH 1 0 1.0 0-0 0 0 0 16 11 5 3 0 0 0 0 0 1 0 0 0
RP MLB Percentile 0 0 0 0-84 0 0 0 0 0 100 0 100 100 99 46 97 0 100 83 75
RP MLB AVG 37 2 47.0 3-2 0 3 6 785 502 284 202 42 28 8 1 6 45 19 2 2
Career 1 0 1.0 0-0 0 0 0 16 11 5 3 0 0 0 0 0 1 0 0 0

Jack Sinclair 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 WSH 33.3% 0.0% .000 .000 .000 .000 .000 .000 .155 .138 .233 .208 95.9 - 25.0 0.78
RP MLB Percentile 97 100 100 100 100 100 100 100 99 100 93 100 0 0 4 100
RP MLB AVG 22.6% 9.9% .240 .390 .713 .315 .289 .320 .235 .315 .279 .359 87.7 89.2 13.3 4.22
Career 33.3% 0.0% .000 .000 .000 .000 .000 .000 .155 .138 .233 .208 95.9 - 25.0 0.78

Jack Sinclair 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 WSH37.5% (97.7)12.5% (96.3)--50.0% (84.6)---- 50.0% 50.0%
RP MLB Percentile 48 (90) 19 (80) - - 97 (78) - - - - 53.6% 45.9%
RP MLB AVG 38.4% (94.6) 26.5% (94.0) 20.1% (89.5) 25.8% (85.9) 21.2% (82.4) 15.4% (80.3) 16.8% (86.2) 18.5% (86.6) 43.0% (61.7) 48.4% 51.4%
Career37.5% (97.7)12.5% (96.3)--50.0% (84.6)---- 50.0% 50.0%

Jack Sinclair 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 WSH0.0% (0)0.0% (0)--37.5% (1)---- 0.0% 37.5%
RP MLB Percentile 0 (0) 0 (0) - - 92 (90) - - - - 0.0% 96.3%
RP MLB AVG 26.9% (28) 27.3% (12) 26.6% (13) 29.8% (24) 28.3% (18) 27.0% (12) 21.6% (17) 22.5% (18) 20.1% (9) 27.8% 28.8%
Career0.0% (0)0.0% (0)--37.5% (1)---- 0.0% 37.5%

Jack Sinclair 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 WSH 50.0% 0.0% 0.0% 50.0% 0.0% 50.0% 0.0% 50.0% 37.5% 50.0% 50.0% 0.0% 0.0% 50.0%
RP MLB Percentile 78 100 0 100 100 94 0 100 100 1 0 99 99 1
RP MLB AVG 43.7% 21.6% 24.4% 10.3% 34.6% 41.0% 33.6% 25.5% 18.2% 62.9% 24.5% 5.8% 6.8% 36.8%
Career 50.0% 0.0% 0.0% 50.0% 0.0% 50.0% 0.0% 50.0% 37.5% 50.0% 50.0% 0.0% 0.0% 50.0%

Jack Sinclair 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 WSH .000 .000 .000 .000 .155 .138 .233 .208 95.9 - 25.0 - 50.0% 33.3%
RP MLB Percentile 100 100 100 100 99 100 93 100 0 0 4 0 1 3
RP MLB AVG .240 .315 .289 .320 .235 .315 .279 .359 87.7 89.2 13.3 17.6% 36.8% 24.4%
Career .000 .000 .000 .000 .155 .138 .233 .208 95.9 - 25.0 - 50.0% 33.3%

Jack Sinclair 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 WSH 50.0% 68.8% 56.3% 25.0% 11.1% 37.5% 88.9% 85.7% 100.0% 12.5% 6.3% 18.8% 12.5% 68.8% 0.50 56.3%
RP MLB Percentile 96 97 99 5 0 100 0 38 0 4 0 0 2 100 51 92
RP MLB AVG 44.4% 63.8% 47.4% 31.8% 25.6% 18.2% 74.4% 83.9% 58.6% 16.3% 12.1% 28.5% 17.1% 58.4% 0.50 51.2%
Career 50.0% 68.8% 56.3% 25.0% 11.1% 37.5% 88.9% 85.7% 100.0% 12.5% 6.3% 18.8% 12.5% 68.8% 0.50 56.3%

Jack Sinclair Approach › Locations

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Year Team Zone% aLoc% x-mLoc% gLoc% hiLoc% y-mLoc% loLoc% iLoc% oLoc% mmLoc%
2026 WSH 50.0% 56.3% 18.8% 25.0% 37.5% 37.5% 25.0% 25.0% 56.3% 12.5%
RP MLB Percentile 96 100 100 2 55 0 1 12 99 100
RP MLB AVG 44.4% 34.5% 27.0% 38.5% 36.4% 22.9% 40.7% 29.8% 43.2% 6.6%
Career 50.0% 56.3% 18.8% 25.0% 37.5% 37.5% 25.0% 25.0% 56.3% 12.5%

Jack Sinclair 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 WSH 50.0% 12.5% 37.5% 12.5% 66.7% 66.7% 25.0% 33.3% 16.7%
RP MLB Percentile 0 40 99 22 87 100 90 93 27
RP MLB AVG 58.5% 12.1% 30.0% 14.5% 61.0% 50.2% 21.1% 26.8% 19.2%
Career 50.0% 12.5% 37.5% 12.5% 66.7% 66.7% 25.0% 33.3% 16.7%

Jack Sinclair PLV

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Year Team P PLV QP% AP% BP% Q-BP% MTK% HP HL PLA
2026 WSH 16 4.95 37.5% 25.0% 37.5% 0.0% 6.3% -0.9 -1 3.34
RP MLB Percentile 0 50 1 100 42 42 12 56 55 59
RP MLB AVG 785 4.94 46.0% 17.3% 36.7% 9.3% 4.7% 0.6 0 3.49
Career 16 4.95 37.5% 25.0% 37.5% 0.0% 6.3% -0.9 -1 3.34
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