ST. LOUIS — Harrison Barnes scored five of his 12 points in overtime and top-seeded North Carolina escaped a huge upset with a 73-65 victory over 13th-seeded Ohio on Friday night in the Midwest Regional semifinals.

Ohio, trying to become the first team seeded 13th or worse to make the regional finals since the NCAA tournament expanded in 1985, had a chance to convert a three-point play that would have given the Bobcats the lead with 25 seconds left in regulation. Walter Offutt missed from the line, however, and Ohio went 0 for 6 from the field in the first overtime of this year’s tournament.

Tyler Zeller finished with 20 points and a career-high 22 rebounds for North Carolina, leading four scorers in double figures.

Offutt led the Bobcats (29-8) with 26 points, including 18 from 3-point range, and Nick Kellogg added 14. But D.J. Cooper, who had averaged 20 points in the first two tournament games, finished with just 10 on 3-of-20 shooting.

• No. 2 Kansas 60, No. 11 N.C. State 57 — Thomas Robinson had 18 points and 15 rebounds, Jeff Withey blocked 10 shots to finish one shy of the NCAA tournament record, and the Jayhawks held off No. 11 seed North Carolina State in the Midwest Regional semifinals.The win set up a showdown between the Jayhawks and North Carolina, led by former coach Roy Williams.Kansas (30-6) squandered an eight-point lead in the final few minutes, and didn’t wrap up the win until Richard Howell’s off-balance heave at the buzzer came up well short.

• No. 1 Kentucky 102, No. 4 Indiana 90 — Michael Kidd-Gilchrist scored 24 points and Kentucky shook off a quiet night by freshman star Anthony Davis, pulling away from Indiana in a showdown of storied programs in the South Regional semifinals.Davis wasn’t a huge factor after picking up two early fouls, but the top-seeded Wildcats (35-2) had five other players in double figures.Christian Watford had 27 points to lead the Hoosiers (27-9), whose comeback season ended two wins shy of the Final Four. Indiana, which won a total of 28 games the previous three seasons, has regained its usual place among the college basketball bluebloods.

• No. 3 Baylor 75, No. 10 Xavier 70 — Quincy Acy had 20 points and 15 rebounds to lift Baylor past Xavier and into its second regional final in three years.The Bears will face Kentucky in Sunday’s South Regional final.The only senior in Baylor’s starting lineup, Acy sank two free throws with 31 seconds remaining after Xavier cut the deficit to six.Baylor, wearing neon-green uniforms, never trailed and led by 18 points less than 8 minutes into the game. But the Musketeers never quit and trimmed the lead to 71-68 with 22 seconds remaining.Quincy Jackson had 16 points and Perry Jones III scored 14 for the Bears (30-7).Tu Holloway led Xavier (23-13) with 22 points.