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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%
1 9.1 1.93 0.86 15.8% 10.5%
136th 3
Sv
352nd 51.0
IP
17th 4.20
ERA
8th 1.35
WHIP
313th 22.6%
K%
218th 9.8%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
97.0 7.5% 21.8% 47.4% 4.5% 4.74 3.60
58th 94.7
FB MPH
339th 12.1%
SwStr%
352nd 28.5%
CSW%
312th 51.2%
Str-ICR
149th 4.7%
MTK%
318th 4.94
PLV
191st 3.55
PLA
Saves List
Rank
45th
Holds List
Rank
99th

Articles

9/23/2026Fantasy Baseball Relief Pitcher Roundup: 9/22Rick Graham

9/22/2026Fantasy Reliever Rankings: Closers, Holds & SOLDs - 9/22Rick Graham

9/20/2026Fantasy Baseball Relief Pitcher Roundup: 9/19Rick Graham

9/19/2026Fantasy Baseball Relief Pitcher Roundup: 9/18Rick Graham

9/15/2026Fantasy Reliever Rankings: Closers, Holds & SOLDs - 9/15Rick Graham

See More Articles
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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 9 0 9.1 1-0 1 3 1.93 0.86 4.09 4.09 5.67 3.60 15.8% 10.5% 3.9 0.00 .160 0.0% 81.8% 36.0% 52.0% 7.5% 21.8% 0.28 4.74
RP MLB Percentile 0 0 0 13-85 38 37 95 98 51 51 6 44 11 37 99 98 99 98 90 55 83 3 0 1 9
RP MLB AVG 41 2 51.0 3-3 3 7 4.20 1.35 4.17 4.18 4.24 3.55 22.6% 9.8% 8.3 1.09 .291 17.6% 72.6% 36.8% 44.0% 12.1% 28.5% 0.50 4.94
Career 9 0 9.1 1-0 1 3 1.93 0.86 4.09 4.06 5.60 3.60 15.8% 10.5% 3.9 0.00 .160 0.0% 81.8% 36.0% 52.0% 7.5% 21.8% 0.28 4.74

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 9 0 9.1 1-0 0 1 3 133 81 52 38 4 1 3 0 0 6 4 3 0
RP MLB Percentile 0 0 0 13-85 0 38 37 0 0 100 0 100 100 87 49 98 0 99 27 77
RP MLB AVG 41 2 51.0 3-3 0 3 7 865 553 312 222 47 31 9 1 6 50 21 3 2
Career 9 0 9.1 1-0 0 1 3 133 81 52 38 4 1 3 0 0 6 4 3 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 15.8% 10.5% .129 .226 .515 .254 .160 .160 .211 .316 .260 .281 89.7 90.8 7.4 4.09
RP MLB Percentile 11 37 99 98 97 89 99 100 77 51 75 96 15 27 84 51
RP MLB AVG 22.6% 9.8% .241 .389 .713 .314 .291 .321 .235 .314 .280 .358 87.6 89.2 13.0 4.17
Career 15.8% 10.5% .129 .226 .515 .254 .160 .160 .211 .316 .260 .281 89.7 90.8 7.4 4.09

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 WSH33.8% (97.0)14.3% (95.8)-7.5% (88.9)42.1% (83.7)-2.3% (87.7)-- 48.1% 51.9%
RP MLB Percentile 39 (83) 23 (74) - 7 (86) 93 (68) - 3 (64) - - 43.5% 55.7%
RP MLB AVG 38.6% (94.7) 26.7% (94.1) 19.8% (89.4) 25.7% (86.1) 21.0% (82.4) 15.4% (80.3) 17.5% (86.1) 19.1% (86.6) 42.7% (61.5) 48.6% 51.2%
Career33.8% (97.0)14.3% (95.8)-7.5% (88.9)42.1% (83.7)-2.3% (87.7)-- 48.1% 51.9%

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 WSH22.2% (2)10.5% (1)-20.0% (0)26.8% (7)-0.0% (0)-- 18.8% 24.6%
RP MLB Percentile 11 (0) 1 (4) - 6 (0) 37 (64) - 0 (0) - - 0.3% 18.5%
RP MLB AVG 27.2% (31) 27.4% (13) 26.9% (14) 29.6% (27) 28.5% (19) 27.2% (15) 22.3% (20) 22.7% (21) 19.3% (9) 27.9% 28.8%
Career22.2% (2)10.5% (1)-20.0% (0)26.8% (7)-0.0% (0)-- 18.8% 24.6%

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 52.0% 20.0% 24.0% 4.0% 24.0% 40.0% 28.0% 32.0% 20.3% 64.0% 20.0% 12.0% 4.0% 36.0%
RP MLB Percentile 83 65 47 4 99 42 9 91 82 57 86 1 86 55
RP MLB AVG 44.0% 21.7% 24.1% 10.2% 34.6% 41.0% 33.6% 25.3% 18.2% 63.0% 24.5% 5.8% 6.7% 36.8%
Career 52.0% 20.0% 24.0% 4.0% 24.0% 40.0% 28.0% 32.0% 20.3% 64.0% 20.0% 12.0% 4.0% 36.0%

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 .129 .254 .160 .160 .211 .316 .260 .281 89.7 90.8 7.4 0.0% 36.0% 23.7%
RP MLB Percentile 99 89 99 100 77 51 75 96 15 27 84 98 55 57
RP MLB AVG .241 .314 .291 .321 .235 .314 .280 .358 87.6 89.2 13.0 17.6% 36.8% 24.4%
Career .129 .254 .160 .160 .211 .316 .260 .281 89.7 90.8 7.4 0.0% 36.0% 23.7%

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 45.1% 60.9% 46.6% 23.3% 16.1% 20.3% 83.9% 84.4% 82.4% 14.3% 7.5% 21.8% 18.8% 57.9% 0.28 47.4%
RP MLB Percentile 58 13 39 1 2 82 2 51 0 16 3 0 75 44 1 11
RP MLB AVG 44.5% 63.8% 47.4% 31.7% 25.6% 18.2% 74.4% 84.0% 58.5% 16.4% 12.1% 28.5% 17.1% 58.3% 0.50 51.2%
Career 45.1% 60.9% 46.6% 23.3% 16.1% 20.3% 83.9% 84.4% 82.4% 14.3% 7.5% 21.8% 18.8% 57.9% 0.28 47.4%

Jack Sinclair Approach › Locations

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Year Team Zone% aLoc% x-mLoc% gLoc% hiLoc% y-mLoc% loLoc% iLoc% oLoc% mmLoc%
2026 WSH 45.1% 40.6% 20.3% 39.1% 33.1% 33.1% 33.8% 30.1% 49.6% 9.0%
RP MLB Percentile 58 82 99 55 36 0 15 54 92 97
RP MLB AVG 44.5% 34.6% 27.0% 38.4% 36.2% 22.9% 40.9% 30.0% 43.1% 6.6%
Career 45.1% 40.6% 20.3% 39.1% 33.1% 33.1% 33.8% 30.1% 49.6% 9.0%

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 60.2% 16.5% 23.3% 16.3% 55.3% 39.5% 16.3% 19.4% 19.4%
RP MLB Percentile 77 2 1 76 9 2 4 3 50
RP MLB AVG 58.6% 12.1% 29.9% 14.5% 61.1% 50.2% 21.1% 26.8% 19.3%
Career 60.2% 16.5% 23.3% 16.3% 55.3% 39.5% 16.3% 19.4% 19.4%

Jack Sinclair PLV

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team P PLV QP% AP% BP% Q-BP% MTK% HP HL PLA
2026 WSH 133 4.74 45.1% 17.3% 37.6% 7.5% 4.5% -2.8 -3 3.60
RP MLB Percentile 0 9 41 48 39 39 54 68 61 44
RP MLB AVG 865 4.94 45.8% 17.4% 36.7% 9.1% 4.7% 0.6 0 3.55
Career 133 4.74 45.1% 17.3% 37.6% 7.5% 4.5% -2.8 -3 3.60
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