Ohio State does not have a good recent history in the NCAA Tourney. The Buckeyes enter this first round matchup banged-up and off a grueling four-day Big Ten Tournament that didn't conclude until Sunday. The Buckeyes had two overtime games, too, in the Big Ten Tourney. 
Oral Roberts, on the other hand, has had ample rest and preparation time having won the Summit League Tournament back on March 9. The Golden Eagles average nearly four more points than Ohio State and lead the nation in free throw percentage at 82.4 percent in made 3-pointers. They have one of the best guards in the nation, Max Abmas, to go with inside scoring. 
So this is going to be a very tough matchup for Ohio State, which may not be 100 percent physically and mentally ready.