seymour siwoff | Baseball no-hitters at NoNoHitters.com

Siwoff supported 9-inning threshold for no-nos

No-hitter newsBy Dirk Lammers November 30, 2019 Leave a comment

Renowned sports statistician Seymour Siwoff, who died Friday at the age of 99, played a part in the 1991 decision that required official no-hitters to last nine innings.