Career
He played for the Buffalo Bisons, New York Metropolitans, and Brooklyn Gladiators. His pitch selection included a drop curve and an "inshoot", which was probably the modern screwball. The New York Clipper wrote of Jack Lynch:
Studying the in-and-out curves, rises, and drop deliveries, he rapidly acquired a reputation as an effective and puzzling pitcher..He has complete control of the ball, with all the curves and varying paces in delivery, and is cool and self-possessed.