Hill, the Big Ten’s leading scorer at 21.3 points per game, helped the Buckeyes (16-1, 3-1) increase a 55-54 lead with a 3-pointer and layup off a turnover. After Sasha Dobranic’s jumper, Hill made it 65-54 with a steal that resulted in a layup and foul shot with 6:56 to play.
Hill iced the win on a 3-pointer 45 seconds remaining for a 78-69 advantage. Samantha Prahalis added 20 points and Amber Stokes 11 as the Buckeyes rebounded from their first loss Saturday at Michigan.
Dannielle Diamant had 23 points for Northwestern (11-6, 1-3). Ohio native Kendall Hackney scored 11 of her 15 in the second half.