Jim Foster's Buckeyes moved back into first place in the Big Ten with a 69-56 victory over the visiting Hawkeyes.
Jantel Lavender made 8 of her 19 field-goal attempts and led OSU with 18 points, eight rebounds, an assist and a block.
Ashlee Trebilcock added 18 points of her own on 7 of 12 shooting. She also made 4 of her 5 three-point attempts.
Marscilla Packer scored 12 points and added four rebounds and three assists.