Audubon pulled off a shocker.

The unranked Wheelers settled down after falling behind early and upset No. 1 Davenport Assumption 72-66 in the Class 2A quarterfinals on Tuesday.

Audubon took the lead for good midway through the third quarter and kept making the plays it needed to stay ahead. Kati Jo Christensen led the Wheelers with 28 points and 12 rebounds and hit one of the biggest shots of the game.

Christensen got the ball on the right side of the floor after Assumption had just cut the lead to 54-53 early in the fourth quarter. She then backed up behind the 3-point line and buried the shot, starting a 6-0 run that stretched the lead to 60-53.

That cushion proved to be enough. After Christensen got a bucket inside, the Wheelers made 10 of 14 free throws to secure their victory.

Audubon will take a 20-6 record into a semifinal game at 2:30 p.m. Thursday against fifth-ranked Battle Creek-Ida Grove. Assumption finishes 24-2.

Jodi Best added 21 points and eight assists for Audubon, while Brittany Denker had 13 points and six rebounds.

Olivia Hansen had a strong game for Assumption, finishing with 20 points and 10 rebounds. Gabbie Binion also had a double-double with 10 points and 10 assists. Kim Thissen scored 12 points for the Knights and blocked three shots.