By Anya Pelshaw on SwimSwam
ASU Pentathlon
- September 12, 2025
- SCY (25 yards)
- Tempe, AZ
Ilya Kharun posted a 44.15 in the 100 butterfly during practice on Friday evening. That time was just off his lifetime best of a 43.43 that he swam at the 2025 NCAA Championships to finish 2nd. In addition to being just off his lifetime best, Kharun’s time from today would have still made the NCAA ‘A’ final in the event in March as it took a 44.52 to make the ‘A’ final.
Men’s Results
Kharun set a new Arizona State pentathlon record in his 100 butterfly swim that kicked off 5x100s fast that are all on 15 minutes, meaning the set takes a total of an hour and 15 minutes. The set is done IM order with an additional 100 IM at the end. Kharun’s time broke his own record of a 45.00 that he swam at last year’s edition of the practice. In addition to breaking his own record in the 100 fly, he also swam to a new pentathlon record in the 100 back posting a 45.72, matching his time from a year ago.
Kharun’s Times:
- 100 fly: 44.15
- 100 back: 45.72
- 100 breast: 54.65
- 100 free: 42.53
- 100 IM: 47.16
Kharun totaled a time of 3:54.21, less than a second off of the overall record of a 3:53.31 that Leon Marchand swam back at the 2022 edition of the pentathlon. The biggest difference is that Marchand was faster on the breaststroke 100 as he swam a 52.00.
Kharun was the top finisher in the 100 free as well as the 100 IM. Jonny Kulow touched right behind Kharun in the 100 free as Kulow swam to a 42.90.
The only 100 that Kharun did not lead the way in was the 100 breast as Lucien Vergnes earned the win in a 53.60. The French native did not even swim the 100 breast at the 2025 Big 12 Championships, instead opting for the 100 back. Vergnes has a best time of a 52.29 in the 100 breast from last November’s dual meet against Cal and Stanford.
Women’s Results
Two records were set on the women’s side of the day. Miriam Sheehan touched in a 53.13 in the 100 backstroke to tie the previous record set by Caroline Bentz last year. Sheehan led off the team’s 200 medley relay at the 2025 NCAA Championships while Bentz anchored that relay to an 8th place finish. Bentz, who has now graduated, holds the school record in the 100 back with a 51.79.
Also setting a record was Julia Ullmann who swam to a 52.28 in the 100 fly. That broke the previous pentathlon record of a 52.80 set by Lindsay Looney back in 2022. Ullman went on to swim the fastest overall 5x100s as well as she touched in a 4:37.69, touching first in the 100 free and 100 IM as well.
Ullmann’s Times:
- 100 fly: 52.28
- 100 back: 55.67
- 100 breast: 1:04.07
- 100 free: 50.14
- 100 IM: 55.53
Ginger McMahon touched the wall first in the 100 breast in a 1:01.44. Despite swimming the 100 fly and 100 back beforehand, McMahon was less than a second off her lifetime best of a 1:00.66 that she swam in January at the Eddie Reese Showdown.
Arizona State kicks off their season on October 3rd as they host UNLV at 6 pm MST.
Read the full story on SwimSwam: Ilya Kharun Posts 44.15 100 Butterfly In Practice At ASU Pentathlon
