TYR Summer Championships, Day Two Finals: Aaron Shackell Blasts 3:45.01 to Win 400 Feestyle; Bumps Luka Mijatovic for Pan Pacs Bid
The second night of the TYR Summer Championships is set up to produce some fast performances, with an Olympian duel in the 400-meter freestyle the most-aniticipated event on the schedule. Kieran Smith and Aaron Shackell will clash in the 400 free, where Smith is an Olympic bronze medalist from the 2020 Games in Tokyo, and Shackell was a finalist at last summer’s Games in Paris.
Alex Shackell is the heaadliner on the women’s side, as the 2024 Olympian advanced to the final of the 100 butterfly as the top seed. Shackell, an 18-year-old headed for Indiana University, went 57.69 during prelims to post the fastest time of the morning by more than a second.
Here is an event-by-event recap of the Day Two Finals:
Women’s 400 Freestyle
Australia’s Molly Walker moved into the lead early in the seventh lap and fought off American Bella Sims over the closing 100 meters. Walker posted a time of 4:07.22 and was followed by Sims in 4:07.34. Entering the last 100, Sims held a .01 edge on Walker, but Walker surged slightly in front just after the 300-meter mark and held on. Sims was coming off an appearance at the World Championships, where she raced in prelims for the United States’ silver medal 800 freestyle relay.
Placing third in 4:08.92 was Madi Mintenko, a Virginia recruit. Mintenko was the top seed in the final and cut time from her morning performance
Event 11 Women 400 LC Meter Freestyle
==================================================================
World: W 3:54.15 6/7/2025 Summer McIntosh, CAN
American: A 3:56.46 8/7/2016 Katie Ledecky, USA
U.S. Open: O 3:56.81 5/1/2025 Katie Ledecky, Gator Swim Club-
Jr World: J 3:56.08 3/28/2023 Summer McIntosh, CAN
Pro Swim: P 3:56.81 5/1/2025 Katie Ledecky, Gator Swim Club-
Name Age Team Prelims Finals
==================================================================
=== A - Final ===
1 Molly Walker 20 Australia-IT 4:12.04 4:07.22
r:+0.75 28.74 59.31 (30.57)
1:30.92 (31.61) 2:02.84 (31.92)
2:34.43 (31.59) 3:05.76 (31.33)
3:36.98 (31.22) 4:07.22 (30.24)
2 Bella Sims 20 Sandpipers Of Ne 4:12.61 4:07.34
r:+0.53 27.73 57.86 (30.13)
1:29.53 (31.67) 2:01.44 (31.91)
2:33.70 (32.26) 3:05.75 (32.05)
3:37.33 (31.58) 4:07.34 (30.01)
3 Madi Mintenko 17 Pikes Peak Athle 4:09.34 4:08.92
r:+0.72 28.53 59.54 (31.01)
1:31.21 (31.67) 2:03.22 (32.01)
2:34.87 (31.65) 3:06.72 (31.85)
3:38.15 (31.43) 4:08.92 (30.77)
4 Gena Jorgenson 21 Club Husker-MW/N 4:12.89 4:11.98
r:+0.75 29.31 1:01.06 (31.75)
1:33.07 (32.01) 2:05.15 (32.08)
2:37.17 (32.02) 3:09.30 (32.13)
3:41.37 (32.07) 4:11.98 (30.61)
5 Summer Cardwell 20 Univ Louisville- 4:14.21 4:12.12
r:+0.69 28.86 59.95 (31.09)
1:31.81 (31.86) 2:03.91 (32.10)
2:36.27 (32.36) 3:08.76 (32.49)
3:41.15 (32.39) 4:12.12 (30.97)
6 Tiana Kritzinge 20 Australia-IT 4:14.81 4:13.06
r:+0.70 29.91 1:01.22 (31.31)
1:33.31 (32.09) 2:05.31 (32.00)
2:37.54 (32.23) 3:09.79 (32.25)
3:42.27 (32.48) 4:13.06 (30.79)
7 Michaela Mattes 20 Gator Swim Club- 4:14.12 4:13.54
29.65 1:01.28 (31.63)
1:33.73 (32.45) 2:06.12 (32.39)
2:38.15 (32.03) 3:10.30 (32.15)
3:42.36 (32.06) 4:13.54 (31.18)
8 Chloe Stepanek 23 Unattached-MR 4:12.53 4:15.17
r:+0.66 29.08 1:01.12 (32.04)
1:33.21 (32.09) 2:05.77 (32.56)
2:38.02 (32.25) 3:10.27 (32.25)
3:42.77 (32.50) 4:15.17 (32.40)
Men’s 400 Freestyle
Going into attack mode from the start, 2024 Olympian Aaron Shackell delivered a wire-to-wire victory in the 400 freestyle that will have an impact on next summer. Fighting off a late charge by Kieran Smith, Shackell captured first place in 3:45.03, with Smith following in 3:45.73. Australian Matthew Galea was third in 3:48.15.
Shackell’s time was faster than the 3:45.71 from Luka Mijatovic at Nationals, which means Shackell moves into position to qualify for the Pan Pacific Championships next summer in Irvine. Shackell left nothing to chance, as he was at 53.66 through 100 meters and went through the midway point of the race in 1:50.42. While Shackell tired during the back half of the race, he dug deep in the closing laps and benefited from his early surge.
Event 12 Men 400 LC Meter Freestyle
==================================================================
World: W 3:39.96 4/12/2025 Lucas Martens, GER
American: A 3:42.78 8/10/2008 Larsen Jensen, USA
U.S. Open: O 3:43.33 6/6/2025 Rex Maurer, Longhorn Aquatic
Jr World: J 3:44.31 7/9/2023 Petar Petrov Mitsin, BUL
Pro Swim: P 3:43.55 2016 Sun Yang
Name Age Team Prelims Finals
==================================================================
=== A - Final ===
1 Aaron Shackell 20 Carmel Swim Club 3:50.65 3:45.03
r:+0.63 25.47 53.66 (28.19)
1:22.01 (28.35) 1:50.42 (28.41)
2:19.11 (28.69) 2:47.97 (28.86)
3:16.95 (28.98) 3:45.03 (28.08)
2 Kieran Smith 25 Ridgefield Aquat 3:51.26 3:45.73
r:+0.70 26.10 54.92 (28.82)
1:23.88 (28.96) 1:52.62 (28.74)
2:20.96 (28.34) 2:49.41 (28.45)
3:17.99 (28.58) 3:45.73 (27.74)
3 Matthew Galea 23 Australia-IT 3:50.58 3:48.15
r:+0.69 26.57 55.28 (28.71)
1:23.96 (28.68) 1:53.07 (29.11)
2:21.71 (28.64) 2:50.41 (28.70)
3:19.69 (29.28) 3:48.15 (28.46)
4 Alec Enyeart 21 Tsunami Swim Tea 3:52.44 3:50.31
r:+0.70 26.32 54.89 (28.57)
1:24.05 (29.16) 1:53.32 (29.27)
2:22.48 (29.16) 2:51.64 (29.16)
3:20.84 (29.20) 3:50.31 (29.47)
5 Gabriel Manteuf 17 Sandpipers Of Ne 3:53.61 3:51.23
r:+0.70 26.33 54.92 (28.59)
1:24.06 (29.14) 1:53.44 (29.38)
2:23.21 (29.77) 2:53.14 (29.93)
3:22.89 (29.75) 3:51.23 (28.34)
6 Colin Jacobs 16 Unattached-FL 3:53.59 3:52.12
r:+0.69 26.80 56.07 (29.27)
1:25.55 (29.48) 1:55.10 (29.55)
2:24.81 (29.71) 2:54.60 (29.79)
3:24.31 (29.71) 3:52.12 (27.81)
7 Mason Edmund 21 Ohio State Unive 3:54.93 3:53.83
r:+0.73 27.15 56.79 (29.64)
1:26.34 (29.55) 1:56.18 (29.84)
2:25.75 (29.57) 2:55.67 (29.92)
3:25.22 (29.55) 3:53.83 (28.61)
8 Juan Vallmitjan 16 South Florida Aq 3:55.37 3:54.10
r:+0.73 27.29 56.72 (29.43)
1:26.48 (29.76) 1:56.46 (29.98)
2:26.55 (30.09) 2:56.93 (30.38)
3:25.89 (28.96) 3:54.10 (28.21)
Women’s 100 Butterfly
Just a few minutes after her brother won the 400 freestyle and likely qualified for the Pan Pacific Championships, Alex Shackell cruised away from the field in the 100 butterfly. The top seed in the final, Shackell went 57.34 to prevail by more than a second over the Australian duo of Isabella Boyd and Bella Grant, who posted matching times of 58.63.
While the men’s selection process will only allow the top-two finishers in each event qualify for Pan Pacs, the women’s process is likely to include multiple third-ranked swimmers from the United States. That scenario has developed due to the number of multi-event qualifiers, and gives the younger Shackell a good chance of being named to the Pan Pacs squad.
Event 13 Women 100 LC Meter Butterfly
==================================================================
World: W 54.60 5/3/2025 Gretchen Walsh, USA
American: A 54.60 5/3/2025 Gretchen Walsh, New York Athleti
U.S. Open: O 54.60 5/3/2025 Gretchen Walsh, New York Athleti
Jr World: J 56.33 6/22/2024 Mizuki Hirai, JPN
Pro Swim: P 54.60 5/3/2025 Gretchen Walsh, New York Athleti
Name Age Team Prelims Finals
==================================================================
=== A - Final ===
1 Alex Shackell 18 Carmel Swim Club 57.69 57.34
r:+0.62 26.53 57.34 (30.81)
2 Isabella Boyd 20 Australia-IT 59.66 58.63
27.69 58.63 (30.94)
2 Bella Grant 20 Australia-IT 58.75 58.63
r:+0.72 27.45 58.63 (31.18)
4 Bailey Hartman 19 Cavalier Aquatic 59.31 58.99
r:+0.67 27.39 58.99 (31.60)
5 Sydney Gring 20 Univ Pittsburgh- 59.58 59.56
r:+0.62 28.35 59.56 (31.21)
6 Erika Pelaez 19 Eagle Aquatics-F 59.83 59.57
r:+0.61 28.00 59.57 (31.57)
7 Miriam Sheehan 20 Sun Devil Swimmi 1:00.21 59.70
r:+0.64 27.82 59.70 (31.88)
8 Rachel Klinker 24 California Aquat 59.66 59.97
r:+0.68 28.33 59.97 (31.64)
Men’s 100 Butterfly
Australian Ben Armbruster cracked the 51-second barrier in what was an excellent 100 fly. Racing in Lane Five, Armbruster built an early lead and withstood late charges by Americans Aiden Hayes and Trenton Julian. Armbruster earned the victory in 50.91. The Aussie was out in 23.58, a quarter-second ahead of Hayes, and made the return trip in 27.33.
Hayes exited the pool with a time of 51.24, which was slightly quicker than the 51.38 of Julian, who closed in 27.04. The issue for Julian was his fifth-place status at the midway point, which was too much to overcome.
Event 14 Men 100 LC Meter Butterfly
==================================================================
World: W 49.45 7/31/2021 Caeleb Dressel, USA
American: A 49.45 7/30/2021 Caeleb Dressel, USA
U.S. Open: O 49.76 6/18/2021 Caeleb Dressel, Gator Swim Club-
Jr World: J 50.62 7/29/2017 Kristof Milak, HUN
Pro Swim: P 50.42 5/3/2025 Ilya Kharun, Unattached-AZ
Name Age Team Prelims Finals
==================================================================
=== A - Final ===
1 Ben Armbruster 23 Australia-IT 51.73 50.91
r:+0.60 23.58 50.91 (27.33)
2 Aiden Hayes 22 Wolfpack Elite-N 51.83 51.24
r:+0.64 23.82 51.24 (27.42)
3 Trenton Julian 26 Mission Viejo Na 51.18 51.38
r:+0.64 24.34 51.38 (27.04)
4 Evan Fentress 21 Ohio State Unive 52.35 52.12
r:+0.67 24.35 52.12 (27.77)
5 Julian Koch 19 Univ Pittsburgh- 52.16 52.23
r:+0.64 23.93 52.23 (28.30)
6 August Vetsch 19 California Aquat 52.71 52.47
r:+0.66 24.21 52.47 (28.26)
7 Jack Dahlgren 25 Unattached-MV 52.63 52.52
r:+0.62 24.62 52.52 (27.90)
8 Grant House 27 Sun Devil Swimmi 52.96 53.26
r:+0.64 24.50 53.26 (28.76)
Women’s 200 Breaststroke
Aussie Sienna Harben was dominant in the final of the 200 breaststroke, as she stormed to an early lead and was never challenged. Harben, the runnerup in the 50 breaststroke on Night One, clocked a swim of 2:28.26. Harben grabbed victory by more than two seconds over American Gabby Rose, who went 2:30.83. The 47-year-old Rose finished just ahead of Isabelle Odgers (2:31.07).
Event 15 Women 200 LC Meter Breaststroke
==================================================================
World: W 2:17.55 4/21/2023 Evgeniia Chikunova, RUS
American: A 2:18.50 8/1/2025 Kate Douglass, USA
U.S. Open: O 2:19.30 1/13/2024 Kate Douglass, New York Athleti
Jr World: J 2:19.64 8/30/2015 Viktoria Gunes, TUR
Pro Swim: P 2:19.30 1/13/2024 Kate Douglass, New York Athleti
Name Age Team Prelims Finals
==================================================================
=== A - Final ===
1 Sienna Harben 21 Australia-IT 2:28.15 2:28.26
r:+0.70 32.67 1:10.22 (37.55)
1:48.85 (38.63) 2:28.26 (39.41)
2 Gabrielle Rose 47 Alpha Aquatics-C 2:32.03 2:30.83
r:+0.70 33.83 1:12.23 (38.40)
1:51.50 (39.27) 2:30.83 (39.33)
3 Isabelle Odgers 24 Irvine Novaquati 2:32.66 2:31.07
r:+0.74 34.09 1:11.97 (37.88)
1:50.84 (38.87) 2:31.07 (40.23)
4 Mackenzie Lung 21 Fresno State Swi 2:33.01 2:31.30
r:+0.69 34.22 1:13.09 (38.87)
1:52.44 (39.35) 2:31.30 (38.86)
5 Mia Cheatwood 21 Univ Louisville- 2:33.55 2:31.78
r:+0.72 34.26 1:11.91 (37.65)
1:51.35 (39.44) 2:31.78 (40.43)
6 Jonette Laegrei 20 Indiana Swim Clu 2:33.76 2:33.27
35.46 1:14.89 (39.43)
1:54.05 (39.16) 2:33.27 (39.22)
7 Sofia Szymanows 16 Irvine Novaquati 2:35.06 2:33.66
r:+0.76 34.66 1:14.36 (39.70)
1:54.66 (40.30) 2:33.66 (39.00)
8 Ella Flowers 21 Trojan Swim Club 2:34.42 2:33.70
r:+0.68 34.98 1:13.60 (38.62)
1:53.35 (39.75) 2:33.70 (40.35)
Men’s 200 Breaststroke
Another Australian victory was collected in the 200 breaststroke, thanks to Joshua Collett holding off Jassen Yep. Collett covered his four laps in 2:10.02, which enabled him to turn back Yep, who clocked a time of 2:10.39. Collett and Yep separated from the field during the first lap and engaged in a two-man battle through the touch.
Event 16 Men 200 LC Meter Breaststroke
==================================================================
World: W 2:05.48 7/28/2023 Haiyang Qin, CHN
American: A 2:06.54 6/19/2024 Matthew Fallon, Univ Pennsylvani
U.S. Open: O 2:06.54 6/19/2024 Matthew Fallon, Univ Pennsylvani
Jr World: J 2:06.91 6/21/2025 Shin Ohashi, JPN
Pro Swim: P 2:08.18 4/13/2024 Matthew Fallon, Univ Pennsylvani
Name Age Team Prelims Finals
==================================================================
=== A - Final ===
1 Joshua Collett 21 Australia-IT 2:13.61 2:10.02
r:+0.63 29.48 1:02.49 (33.01)
1:35.73 (33.24) 2:10.02 (34.29)
2 Jassen Yep 22 Indiana Swim Clu 2:12.87 2:10.39
r:+0.59 29.41 1:02.82 (33.41)
1:36.20 (33.38) 2:10.39 (34.19)
3 Adam Chillingwo 27 Int Club Team-IT 2:13.23 2:12.56
r:+0.64 30.40 1:04.04 (33.64)
1:38.24 (34.20) 2:12.56 (34.32)
4 Charlie Egeland 20 Indiana Swim Clu 2:13.07 2:12.82
r:+0.66 30.07 1:03.90 (33.83)
1:38.08 (34.18) 2:12.82 (34.74)
5 Logan Brown 20 Texas A & M Univ 2:13.86 2:13.17
r:+0.58 30.37 1:03.87 (33.50)
1:38.06 (34.19) 2:13.17 (35.11)
6 Finlay Schuster 21 Australia-IT 2:14.53 2:13.28
r:+0.64 30.17 1:04.30 (34.13)
1:38.87 (34.57) 2:13.28 (34.41)
7 Jake Eccleston 19 Univ Louisville- 2:14.29 2:14.11
r:+0.68 30.47 1:04.41 (33.94)
1:38.71 (34.30) 2:14.11 (35.40)
8 Daniel Li 19 Rose Bowl Aquati 2:14.68 2:14.16
r:+0.68 30.30 1:04.42 (34.12)
1:38.65 (34.23) 2:14.16 (35.51)
