The men's 100 metre butterfly competition of the swimming events at the 2023 Pan American Games were held on October 22, 2023, at the Aquatic Center in Santiago, Chile.

Records Prior to this competition, the existing world and Pan American Games records were as follows: World record49.45Tokyo, JapanJuly 31, 2021Pan American Games record51.44Lima, PeruAugust 7, 2019

Results KEY:QAQualified for A finalQBQualified for B finalGRGames recordNRNational recordPBPersonal bestSBSeasonal best

Heats The highest eight scores advance to the final. RankHeatLaneNameNationalityTimeNotes 1 4 4Lukas Miller 51.99 QA 2 4 3Vinicius Lanza 52.78 QA 3 3 5Jorge Otaiza 53.08 QA 4 4 5Victor Baganha 53.11 QA 5 3 4Arsenio Bustos 53.21 QA 6 2 4Finlay Knox 53.33 QA 7 3 3Ángel Martínez 53.95 QA 8 4 6David Arias 53.97 QA 9 4 2Esnaider Reales 53.99 QB 10 3 6Keir Ogilvie 54.22 QB 11 2 5Jorge Iga 54.30 QB 12 3 2Benjamín Schnapp 54.56 QB 13 2 3Emil Pérez 54.63 QB 14 2 2Zarek Wilson 54.74 QB 15 2 6Benjamín Hockin 54.76 QB 16 4 7Elías Ardiles 55.04 QB 17 4 1Esteban Nuñez del Prado 55.10 18 2 7Carlos Vasquez 55.14 19 1 6Mikel Schreuders 55.92 20 3 8Emmanuel Gadson 56.32 21 3 1Jeancarlo Calderón 56.50 22 3 7Jayhan Odlum-Smith 56.56 23 2 8Sidrell Williams 56.79 24 4 8Zackary Gresham 56.91 25 1 4Christopher Gossmann 57.02 26 1 5Gerald Hernández 57.90 27 1 2Xavier Ventura 58.61 28 1 3Irvin Hoost 58.76 29 1 7Adriel Sanes 58.86 2 1Noah Mascoll-Gomes

Final B The B final was held on October 21. RankLaneNameNationalityTimeNotes 9 4Esnaider Reales 53.87 10 5Keir Ogilvie 54.15 11 3Benjamín Schnapp 54.35 12 7Benjamín Hockin 54.57 13 1Elías Ardiles 54.60 14 2Zarek Wilson 54.61 15 8Esteban Nuñez del Prado 54.71 16 6Emil Pérez 55.08

Final A The A final was held on October 21. RankLaneNameNationalityTimeNotes 4Lukas Miller 51.98 5Vinicius Lanza 52.52 2Arsenio Bustos 52.60 4 7Finlay Knox 52.89 5 3Jorge Otaiza 52.95 6 6Victor Baganha 53.00 7 1Ángel Martínez 53.73 8 8David Arias 53.79

References