The Men's 100 metre butterfly competition at the 2019 World Championships was held on 26 and 27 July 2019.ScheduleStart list The defending champion Caeleb Dressel broke Michael Phelps' ten-year-old record by 0.32 second in the semi-final, setting a new world-record time of 49.50 seconds. Dressel won the final held the following day, defending his title.

Records Prior to the competition, the existing world and championship records were as follows.

The following new records were set during this competition. Date Event Name Nationality Time Record 26 July Semifinal Caeleb Dressel 49.50

Results Heats The heats were held on 26 July at 10:00.Heats results

Rank Heat Lane Name Nationality Time Notes 1 9 4 Caeleb Dressel 50.28 Q 2 7 2 Kristóf Milák 51.42 Q 3 9 3 Andrey Minakov 51.54 Q 4 7 4 Chad le Clos 51.58 Q 5 9 5 Mehdy Metella 51.65 Q 6 9 6 Vinicius Lanza 51.83 Q 7 9 7 László Cseh 51.88 Q 8 8 2 Matthew Temple 51.89 Q 9 8 5 Jack Conger 51.96 Q 10 7 3 Marius Kusch 52.05 Q 11 8 3 James Guy 52.06 Q 12 8 6 Naoki Mizunuma 52.23 Q 13 7 1 Tomer Frankel 52.36 Q 14 7 6 Li Zhuhao 52.44 Q 14 9 1 Yauhen Tsurkin 52.44 Q 14 9 2 David Morgan 52.44 Q 17 7 8 Adilbek Mussin 52.46 18 8 9 Deividas Margevičius 52.55 NR 19 7 7 Federico Burdisso 52.65 20 8 7 Konrad Czerniak 52.77 21 6 2 Ümitcan Gureş 52.86 22 9 8 Mathys Goosen 52.87 23 6 4 Kregor Zirk 52.92 24 7 5 Joseph Schooling 52.93 24 8 0 Josiah Binnema 52.93 26 8 4 Piero Codia 53.09 27 8 8 Daniel Martin 53.15 28 6 1 Denys Kesil 53.39 29 7 9 Andreas Vazaios 53.41 30 8 1 Ryan Coetzee 53.46 31 5 6 Mihajlo Čeprkalo 53.52 NR 32 5 4 Chu Chen-ping 53.58 33 6 6 Riku Pöytäkivi 53.62 34 6 3 Yun Seok-hwan 53.64 35 6 5 Simon Sjödin 53.70 36 5 5 Bradlee Ashby 53.73 37 6 9 Benjamin Hockin 53.78 38 5 3 Chan Jie 53.85 39 6 8 Roberto Strelkov 54.11 40 5 7 Yusuf Tibazi 54.21 41 6 0 Sajan Prakash 54.30 42 5 8 Nicholas Lim 54.36 43 5 0 Navaphat Wongcharoen 54.38 44 6 7 Glenn Victor Sutanto 54.57 45 1 5 Abbas Qali 54.67 46 4 4 Cadell Lyons 54.79 47 5 2 Steven Aimable 54.94 NR 47 5 9 Abeiku Jackson 54.94 49 5 1 Ralph Goveia 55.14 50 4 6 Ayman Kelzi 55.15 NR 51 4 3 Alireza Yavari 55.63 52 4 5 Keanan Dols 55.66 53 4 2 Teimuraz Kobakhidze 56.03 54 4 1 Bryan Alvaréz 56.04 55 4 0 Jayhan Odlum-Smith 56.31 56 2 5 Artur Barseghyan 56.52 57 4 7 Seggio Bernardina 56.54 58 3 5 Yousif Bu Arish 56.58 59 4 8 Yacob Al-Khulaifi 56.62 60 3 4 Rami Anis FINA Independent Athletes 57.26 61 3 3 Jesse Washington 57.29 62 3 8 Salvador Gordo 57.32 63 1 3 Ifeakachuku Nmor 57.65 64 3 7 Simon Bachmann 58.06 65 3 1 Bernat Lomero 58.12 66 4 9 Fernando Ponce 58.26 67 1 4 Abdulla Ahmed 58.44 NR 68 3 0 Collins Saliboko 58.82 69 3 6 Davidson Vincent 58.91 70 3 2 Mathieu Marquet 71 2 1 Daniel Christian 72 2 3 Ousmane Touré 73 3 9 Emilien Puyo 74 2 2 Lim Keouodom 75 2 8 Simanga Dlamini 76 2 4 Belly-Cresus Ganira 77 2 7 Achala Gekabel 2 6 Irvin Hoost 7 0 Viktor Bromer 9 0 Tomoe Zenimoto Hvas 9 9 Antani Ivanov

Semifinals The semifinals were held on 26 July at 20:10.Semifinals results

Semifinal 1 Rank Lane Name Nationality Time Notes 1 4 Kristóf Milák 50.95 Q 2 5 Chad le Clos 51.40 Q 3 2 Marius Kusch 51.50 Q 4 6 Matthew Temple 51.70 Q 5 7 Naoki Mizunuma 51.71 6 3 Vinicius Lanza 51.92 7 1 Li Zhuhao 52.00 8 8 David Morgan 52.20

Semifinal 2 Rank Lane Name Nationality Time Notes 1 4 Caeleb Dressel 49.50 Q, 2 5 Andrey Minakov 50.94 Q, NR 3 3 Mehdy Metella 51.62 Q 4 7 James Guy 51.69 Q 5 6 László Cseh 51.86 6 2 Jack Conger 51.91 7 1 Tomer Frankel 52.15 NR 8 8 Yauhen Tsurkin 52.55

Final The final was started on 27 July at 20:43.Final results

Rank Lane Name Nationality Time Notes 4 Caeleb Dressel 49.66 5 Andrey Minakov 50.83 NR 6 Chad le Clos 51.16 4 3 Kristóf Milák 51.26 5 7 Mehdy Metella 51.38 6 8 Matthew Temple 51.51 7 1 James Guy 51.62 8 2 Marius Kusch 51.66

References