100 Breaststroke Time Standard: 1:08.86
| 1 |  Mary Martin, SRDowling Catholic | 1:05.73 |
| 2 |  Olivia Swalley, SOJohnston | 1:06.20 |
| 3 |  Taylor Buhr, JRPleasant Valley | 1:06.41 |
| 4 |  Emma Myers, FRCarroll | 1:06.96 |
| 5 | Annie Honkamp, FR Dowling Catholic | 1:07.51 |
| 6 |  Hayley Kimmel, SOLinn-Mar | 1:07.71 |
| 7 |  Rika Yahashiri, SRIowa City High | 1:07.86 |
| 8 | Emma Foth, SO Dowling Catholic | 1:08.12 |