We still aren't sure how Iowa pulled off the win over a pesky Illinois squad, but they did.
After Iowa burst out of the gate with a 10-0 lead, Illinois simply forgot how to miss, sinking over half the shots they took.
Illinois shot 53 percent from the field and 58 percent from three-point range, knocking down 11 threes, but it wasn't enough.
The Fighting Illini controlled most of the second half, but a few costly turnovers down the stretch cost them in a tight game, and Iowa took advantage.
The Hawkeyes scored 16 points on 11 Illini turnovers, and escaped Carver with a 82-78 win.
The win was HUGE for the Hawkeyes, who locked up a top-seed in the Big Ten Tournament, and a delayed start.
Iowa secured a top-four seed in the Big Ten Tournament with a win
It wasn't pretty, and Illinois definitely gave the Hawkeyes a scare, but Heiden's big night pushed the Hawkeyes to the finish line.
Even though Heiden was reportedly dealing with an illness, she dropped a career-high 28 points on an efficient 72 percent shooting from the field.
Taylor Stremlow also notched her first career double-double in the victory, dropping 11 points and 11 assists.
The win was very important for the Hawkeyes because it locked up a top-four seed in the Big Ten Tournament.
Iowa still has a chance to secure a top-two seed with a win over Wisconsin to close out the season, but a top-four seed gives them a double bye in the conference tournament.
That gives the Hawkeyes some much-need rest, and an automatic spot in the quarterfinals.