(Photo credit: Kyle Robertson/Columbus Dispatch / USA TODAY NETWORK)

Chip Trayanum scored on a 1-yard run with one second left as No. 6 Ohio State stunned No. 9 Notre Dame 17-14 in South Bend, Ind., on Saturday night.

The Buckeyes (4-0) drive 65 yards in 15 plays, with Kyle McCord's 21-yard pass to Emeka Egbuka on third-and-19 putting the ball at the 1-yard-line with seven seconds to play. McCord threw a pair of incompletions before Trayanum's score on third down.

Sam Hartman's 2-yard pass to freshman Rico Flores Jr. with 8:22 left in the game capped a 96-yard, 11-play drive to give Notre Dame (4-1) a 14-10 lead. It was Flores' first career TD catch.

Ohio State drove 64 yards on the following drive but Egbuka was stuffed at the line on a fourth-and-1 run from the Irish 11 with 4:12 left.

The Ohio State defense held and forced a punt, giving the Buckeyes one last shot at the winning drive.

TreVeyon Henderson raced 61 yards on the Buckeyes' first play of the third quarter for a 10-0 lead before the Fighting Irish responded with a 13-play, 75-yard drive capped by a 1-yard run by Gi'Bran Payne.

Hartman was 17 for 25 for 175 yards and the touchdown. Audric Estime had 70 yards on 14 runs for the Irish.

McCord was 21 of 37 for 240 yards and Egbuka had seven catches for 96 yards. Henderson ran for 104 on 14 carries.

Ohio State led 3-0 at the half in the defensive struggle when Jayden Fielding made a 31-yard field goal with 26 seconds left before intermission.

Each team had four offensive drives in the first half (Notre Dame's fourth drive was a kneel-down to end the half), and each had one drive go at least 70 yards that resulted in a turnover on downs.

Ohio State had 147 total yards for the first half despite gaining only 41 in the first quarter. Notre Dame totaled 141 but just 36 in the second quarter when it had the ball for 4:29 after 10:01 of possession in the first quarter.

The Fighting Irish had a 14-play drive that spanned 71 yards and used 8:12 in the first quarter to move from the 11 to the Ohio State 18 but was stopped inches shy of a first on fourth down.

Early in the second quarter, Spencer Shrader missed a 47-yard field-goal attempt for Notre Dame and the Buckeyes drove to the 1 on the ensuing drive. But on the 13th play of the series, Jaylen Sneed broke up a pass intended for Cade Stover.