MLB · P · Washington Nationals
Jack Sinclair
B/T R/R · 6' 4" · 170 lb · born Coral Springs, FL, USA · age 27 · draft 2021 rd 16 · played P 53 · MLB debut 2026-09-04
Last 14 days (through 2026-09-05): 1 G · 1.0 IP · 0.00 ERA · 1 SO · 0.00 WHIP
66 batters faced scored this season His season card →
Scout’s note
Jack Sinclair is a 27-year-old right-hander from Coral Springs, Florida, a 2021 sixteenth-round pick who debuted September 4, 2026. He has one MLB appearance and one strikeout to his name — the whole story so far.
Collect Jack Sinclair
If the signal is right, the cardboard usually finds out later. Current listings:
Jack Sinclair cards on eBay →Paid link — as an eBay Partner, FVR earns from qualifying purchases.
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Umpire favor
+0.2 net runs over 2 graded games — an even shake from the zone this season.
The line
Bio & season lines: MLB StatsAPI · refreshed nightly · abbreviations →