Thomas netted 19 points while Craft added 14 and six assists for the Buckeyes (23-7, 13-5 Big Ten), who reeled off their fifth straight win. Lenzelle Smith Jr. helped out with 10 points and six rebounds.
The result put Ohio State in contention for a earn a share of the Big Ten Conference title with Indiana until the Hoosiers defeated Michigan later Sunday to claim their first outright Big Ten title since 1993.
The Fighting Illini (21-11, 8-10) were paced by Brandon Paul with 21 points and five boards.
Millions of Getty images now available for free via embed tool
Boston schools pull out free condoms over wrapping complaints