By Sean Griffin on SwimSwam
2025 U.S. Junior National Championships
Wednesday, July 30–Sunday, August 3, 2025 Irvine, California William Woollett Jr. Aquatics Center LCM (50 meters) Meet Central Psych Sheets Live Results Live Recaps Prelims: Day 1 | Day 2 | Day 3 Finals: Day 1 | Day 2 | Day 3The U.S. Junior National Championships continue today from the William Woollett Jr. Aquatics Center in Irvine, California. This fourth of five preliminary sessions includes the 50 butterfly, 200 freestyle, 100 backstroke, and 200 breaststroke for both girls and boys.
Follow along below for real-time updates.
Girls’ 50 Butterfly — Prelims
World Junior Record: 25.46 — Rikako Ikee, Japan (2017) Meet Record: N/ATop 8 Qualifiers:
Boys’ 50 Butterfly — Prelims
World Junior Record: 22.96 — Diogo Ribeiro, Portugal (2023) Meet Record: N/ATop 8 Qualifiers:
Girls’ 200 Freestyle — Prelims
World Junior Record: 1:53.65 — Summer McIntosh, Canada (2023) Meet Record: 1:58.07 — Madi Mintenko, Pikes Peak Athletics (2023) 13-14 NAG Record: 1:58.53 — Cynthia Woodhead & Claire Weinstein (1978 & 2022) 15-16 NAG Record: 1:55.06 — Missy Franklin, Colorado Stars (2011) 17-18 NAG Record: 1:54.43 — Nation’s Capital Swim Club (2016)Top 8 Qualifiers:
Boys’ 200 Freestyle — Prelims
World Junior Record: 1:42.97 — David Popovoci, Romania (2022) Meet Record: 1:47.29 — Aaron Shackell, Carmel Swim Club (2023) 13-14 NAG Record: 1:49.63 — Luka Mijatovic, Pleasanton Seahawks (2024) 15-16 NAG Record: 1:45.92 — Luka Mijatovic, Pleasanton Seahawks (2025) 17-18 NAG Record: 1:45.99 — Michael Phelps, North Baltimore Aquatic Club (2003)Top 8 Qualifiers:
Girls’ 100 Backstroke — Prelims
World Junior Record: 57.57 — Regan Smith, United States (2019) Meet Record: 59.77 — Rachel Bootsma, Aquajets (2009) 13-14 NAG Record: 1:00.26 — Regan Smith, Riptide (2016) 15-16 NAG Record: 58.82 — Claire Curzan, TAC Titans (2021) 17-18 NAG Record: 57.57 — Regan Smith, Riptide (2019)Top 8 Qualifiers:
Boys’ 100 Backstroke — Prelims
World Junior Record: 52.08 — Miron Lifintsev, Russia (2024) Meet Record: 54.41 — Will Modglin, Zionsville Swim Club (2022) 13-14 NAG Record: 56.62 — Josh Zuchowski, Flood Aquatics Swim Team (2019) 15-16 NAG Record: 53.27 — Daniel Diehl, Cumberland YMCA (2022) 17-18 NAG Record: 53.07 — Daniel Diehl, Cumberland YMCA (2022)Top 8 Qualifiers:
Girls’ 200 Breaststroke — Prelims
World Junior Record: 2:19.64 — Viktoria Gunes, Turkey (2015) Meet Record: 2:26.35 — Allie Szekely, Central Bucks Swim Team (2012) 13-14 NAG Record: 2:25.75 — Amanda Beard, Irvine Novaquatics (1996) 15-16 NAG Record: 2:25.35 — Anita Nall, North Baltimore Aquatic Club (1992) 17-18 NAG Record: 2:24.47 — Lilly King, Win Tidal Wave (2015)Top 8 Qualifiers:
Boys’ 200 Breaststroke — Prelims
World Junior Record: 2:06.91 — Shin Ohashi, Japan (2025) Meet Record: 2:11.25 — Daniel Roy, King Aquatic Club (2017) 13-14 NAG Record: 2:15.84 — Ethan Dang, King Aquatic Club (2016) 15-16 NAG Record: 2:09.40 — Josh Matheny, Team Pittsburgh Elite Aquatics (2019) 17-18 NAG Record: 2:08.91 — Matt Fallon, Somerset County YMCA (2021)Top 8 Qualifiers:
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