INDIANAPOLIS — The Iowa women’s basketball team got a big boost down the stretch from freshman Ava Heiden to help the Hawkeyes defeat No. 24 Michigan State 74-61 in the second round of the Big Ten Tournament here Thursday night.

Lucy Olsen had a game-high 21 points to lead Iowa, which scored the last eight points to break open a close game. Taylor McCabe made four 3-pointers for 12 points, Hannah Stuelke had 12 points and 10 rebounds, and Heiden chipped in 11 in a critical reserve role.

Olsen’s last of nine assists came on a 3-pointer from the corner for Kylie Feuerbach, which made it 73-61 with 53 seconds left.

Julia Ayrault had 17 points to lead Michigan State, the No. 6 seed. Grace VanSlooten added 12 points and 10 boards for the Spartans, and Ines Sotelo added 11 points.

The No. 11-seeded Hawkeyes will face No. 3 seed Ohio State (24-5) in Friday’s last quarterfinal at approximately 8:30 p.m.

Big Ten Tournament

At Indianapolis

(all games on BTN unless noted)

First Round

Wednesday, March 5

Washington 79, Minnesota 65

Nebraska 84, Rutgers 60

Iowa 81, Wisconsin 54

Second Round

Thursday, March 6

Indiana 78, Oregon 62

Michigan 66, Washington 58

Nebraska 74, Illinois 70

Iowa 74, Michigan St. 61

Quarterfinals

Friday, March 8

No. 1 USC (26-2) vs. No. 9 Indiana (19-11), Noon

No. 4 Maryland (23-6) vs. No. 5 Michigan (21-9), 2 p.m.

No. 2 UCLA (27-2) vs. No. 10 Nebraska (21-10), 6:30 p.m.

No. 3 Ohio St. (24-5) vs. No. 11 Iowa (22-9), 8:30 p.m.

Semifinals

Saturday, March 8

3 p.m., 5:30 p.m.

Championship

Sunday, March 9

Semifinal winners, 4:30 p.m. (CBS)

Iowa 74, No. 24 Michigan St. 61

IOWA (22-9) — Stuelke 5-8 2-2 12, Affolter 3-7 0-0 6, Feuerbach 3-9 2-4 9, McCabe 4-10 0-0 12, Olsen 6-12 8-8 21, Heiden 4-4 3-5 11, O’Grady 1-2 1-2 3, Guyton 0-2 0-0 0, Mallegni 0-0 0-0 0, Stremlow 0-1 0-0 0. TOTALS 26-55 16-21 74.

MICHIGAN ST. (21-9) — VanSlooten 6-12 0-1 12, Ayrault 4-9 6-6 17, Hallock 3-13 0-0 7, Simmons 2-5 1-1 5, Tate 4-9 0-1 9, Sotelo 4-7 2-2 11, Hampton 0-1 0-0 0, Shumate 0-1 0-0 0. TOTALS 23-57 9-11 61.

Iowa 12 20 22 20 — 74

Michigan St. 16 9 23 13 — 61

3-Point Goals–Iowa 6-25 (Affolter 0-3, Feuerbach 1-6, McCabe 4-10, Olsen 1-4, Guyton 0-2), Michigan St. 6-22 (Ayrault 3-6, Hallock 1-7, Simmons 0-2, Tate 1-2, Sotelo 1-3, Hampton 0-1, Shumate 0-1). Assists–Iowa 20 (Olsen 9), Michigan St. 17 (Simmons 5). Fouled Out–None. Rebounds–Iowa 32 (Stuelke 10), Michigan St. 31 (VanSlooten 10). Total Fouls–Iowa 14, Michigan St. 18. Technical Fouls–Iowa Team. A–7,028.