Luka Mijatovic Smashes Junior Pan Pac Record in 400 Free

Luka Mijatovic has made a significant splash in the swimming world by breaking the Junior Pan Pacific Championships record in the 400 free event. The 17-year-old American swimmer achieved a time of 3:43.67, surpassing the previous record of 3:48.36 set by Australia's Josh Staples in 2022.

The event took place at the UBC Aquatic Centre in Vancouver, Canada, from August 17-20, 2026. Mijatovic's impressive performance has earned him a spot in the record books, and he is now only the third American to have achieved a time of 3:43 or better twice in their career, joining Larsen Jensen and Peter Vanderkaay.

A comparison of Mijatovic's splits reveals that he was faster than Staples on every 50 tonight. The biggest difference came on the final 50, where Mijatovic blasted a 27.53 to come home. This is particularly notable, as his time tonight would have placed him fourth at the 2026 Pan Pacific Championships, just behind fellow American Aaron Shackell who swam to a 3:43.44 for bronze.

### Event Details

| Event | Date | Location | Record | | --- | --- | --- | --- | | Junior Pan Pacific Championships | August 17-20, 2026 | UBC Aquatic Centre, Vancouver, Canada | 3:43.67 (Luka Mijatovic) |

### Top 10 Finishers

| Rank | Swimmer | Country | Time | | --- | --- | --- | --- | | 1 | Luka Mijatovic | USA | 3:43.67 | | 2 | Lincoln Wearing | AUS | 3:47.85 | | 3 | Raito Numata | JPN | 3:48.55 | | 4 | Luke Higgs | AUS | 3:51.04 | | 5 | Kotaro Hyodo | JPN | 3:52.55 | | 6 | Trent Allen | USA | 3:53.91 | | 7 | Daniel Saborio Grillo | MEX | 3:54.04 | | 8 | Simon Fonseca Florez | CAN | 3:56.40 | | 9 | Oliver Blanchard | CAN | 3:56.90 | | 10 | Cauã Lopes Angelotti | BRA | 3:57.56 |