2026 Pan Pacific Swimming Championships – Men's 400 metre individual medley

The men's 400 metre individual medley competition at the 2026 Pan Pacific Swimming Championships took place on August 13 at the William Woollett Jr. Aquatics Center. The defending champion was Chase Kalisz of the United States.

Records Prior to this competition, the existing world and Pan Pacific records were as follows: World record4:02.50Fukuoka, Japan23 July 2023Pan Pacific Championships record4:07.59Irvine, United States19 August 2010

Results All times are in minutes and seconds.

KEY:QAQualified A FinalQBQualified B FinalCRChampionships recordNRNational record

Heats The first round was held on 13 August from 10:21.

Only two swimmers from each country may advance to the A or B final. If a country not qualify any swimmer to the A final, that same country may qualify up to three swimmers to the B final.

Rank Heat Lane Swimmer Nation Time Notes 1 1 4 Tomoyuki Matsushita 4:07.61 QA2 1 3 Yumeki Kojima 4:08.69 , WJ 1 5 Asaki Nishikawa 4 2 4 Carson Foster 4:11.55 QA 5 1 6 William Petric 4:11.86 QA 6 2 5 Bobby Finke 4:12.17 QA 7 2 3 Lewis Clareburt 4:13.33 QA 8 2 6 Rex Maurer 4:13.76 QB 9 2 2 Lorne Wigginton 4:14.23 QA 10 1 2 Tristan Jankovics 4:15.87 QA 11 1 7 Se-Bom Lee 4:17.03 QB 12 2 7 Brendon Smith 4:17.64 QB, 13 2 1 Aiden Kirk 4:28.05 QB 14 1 1 Gian Santos 4:30.19 QB 15 2 8 Cameron Casali 4:39.31 QB 16 1 8 Kai Whelan 4:44.83 QB

Swim-off A swim-off was held to determine the second Japanese qualifier for the A Final. Rank Lane Swimmer Nation Time Notes 1 5 Asaki Nishikawa 4:13.84 QA 2 4 Yumeki Kojima 4:27.43 QB

B Final The finals were held on 13 August from 19:17. Rank Lane Name Nationality Time Notes 9 3 Rex Maurer 4:12.49 10 5 Se-Bom Lee 4:14.72 11 4 Yumeki Kojima 4:23.99 12 6 Aiden Kirk 4:24.91 13 7 Cameron Casali 4:34.55 14 1 Kai Whelan 4:37.50 — 2 Gian Santos

A Final Rank Lane Name Nationality Time Notes 4 Tomoyuki Matsushita 4:06.75 CR 3 Carson Foster 4:17.11 2 Bobby Finke 4:07.59 4 5 Asaki Nishikawa 4:08.82 5 6 William Petric 4:09.24 NR 6 7 Lewis Clareburt 4:09.86 7 8 Tristan Jankovics 4:14.14 8 1 Lorne Wigginton 4:14.94

References