Deshaun Thomas provided 19 points and Lenzelle Smith Jr. added 18 for the Buckeyes (1-0), who drained 12-of-20 three-pointers.
Sunday's game was to be the second of the season for the Buckeyes, but the scheduled Friday opener against Marquette on the deck of the USS Yorktown was canceled due to water on the court.
The Great Danes (1-1) were paced by Mike Black with 20 points.
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