The Men's 100 Backstroke event at the 10th FINA World Aquatics Championships swam 21 – 22 July 2003 in Barcelona, Spain. PreliminaryWorlds 2003 results: Men's 100m Backstroke Prelims, from OmegaTiming.com (official timer of the 2003 Worlds); retrieved 2010-01-24. and SemifinalWorlds 2003 results: Men's 100m Backstroke Semifinals, from OmegaTiming.com (official timer of the 2003 Worlds); retrieved 2010-01-24. heats swam on July 21; the FinalWorlds 2003 results: Men's 100m Backstroke Final , from OmegaTiming.com (official timer of the 2003 Worlds); retrieved 2010-01-24. was held on July 22.

At the start of the event, the existing World (WR) and Championship (CR) records were: WR: 53.60 swum by Lenny Krayzelburg (USA) on August 24, 1999 in Sydney, Australia CR: 54.31 swum by Matt Welsh (Australia) on July 23, 2001 in Fukuoka, Japan

Results

Final Place Swimmer Nation Time Notes 1 Aaron Peirsol 53.61 CR 2 Arkady Vyatchanin 53.92 2 Matt Welsh 53.92 4 Steffen Driesen 54.17 5 Markus Rogan 54.53 6 Tomomi Morita 54.86 7 László Cseh 54.95 8 Alex Lim 55.18

Semifinals Rank Heat + Lane Swimmer Nation Time Notes 1 S2 L5 Aaron Peirsol 54.28 q, CR 2 S1 L4 Arkady Vyatchanin 54.49 q 3 S1 L1 Steffen Driesen 54.60 q 4 S2 L4 Matt Welsh 54.77 q 4 S2 L8 Alex Lim 54.77 q 6 S2 L2 Markus Rogan 55.11 q 7 S2 L3 László Cseh 55.12 q 8 S1 L5 Tomomi Morita 55.17 q 9 S2 L6 Ouyang Kunpeng 55.21 10 S1 L3 Blaž Medvešek 55.30 11 S1 L7 Simon Dufour 55.31 12 S1 L8 Atsushi Nishikori 55.36 13 S2 L1 Răzvan Florea 55.42 14 S1 L2 Örn Arnarson 55.67 15 S1 L6 Yoav Gath 55.71 16 S2 L7 Péter Horváth 55.83

Preliminaries Rank Heat+Lane Swimmer Nation Time Notes 1 H12 L4 Matt Welsh 54.79 q 2 H10 L2 Arkady Vyatchanin 54.81 q 3 H11 L4 Aaron Peirsol 54.99 q 4 H12 L6 Tomoni Morita 55.06 q 5 H11 L7 László Cseh 55.11 q 6 H10 L8 Blaž Medvešek 55.28 q 7 H11 L1 Ouyang Kunpeng 55.29 q 8 H08 L4 Yoav Gath 55.41 q 9 H11 L5 Markus Rogan 55.42 q 10 H09 L8 Örn Arnarson 55.47 q 10 H10 L3 Péter Horváth 55.47 q 12 H11 L2 Simon Dufour 55.49 q 13 H09 L1 Răzvan Florea 55.56 q 13 H10 L5 Steffen Driesen 55.56 q 15 H11 L6 Alex Lim 55.62 q 16 H12 L5 Atsushi Nishikori 55.67 q 17 H10 L7 Riley Janes 55.76 18 H12 L8 Gerhard Zandberg 55.80 19 H12 L3 Josh Watson 55.81 20 H09 L5 Karel Novy 55.82 21 H12 L1 David Ortega 55.85 22 H12 L7 Toni Helbig 55.90 23 H10 L6 Gordan Kožulj 55.94 24 H09 L4 Ahmed Hussein 55.95 25 H08 L2 Darius Grigalionis 56.00 26 H08 L7 Ryan Pini 56.06 27 H10 L1 Volodymyr Nikolaychuk 56.14 28 H09 L7 Cameron Gibson 56.22 29 H12 L2 Evgueni Alechine 56.31 30 H11 L3 Pierre Roger 56.34 31 H11 L8 Min Sung 56.38 32 H07 L6 Pavel Suškov 56.42 33 H09 L2 Jorge Sánchez 56.44 34 H08 L6 Klaas Erik Zwering 56.58 35 H07 L4 Pavlo Illichov 56.60 36 H09 L3 Rui Yu 56.77 37 H09 L6 Paulo Machado 57.01 38 H08 L3 Nuno Laurentino 57.10 39 H08 L1 Flori Lang 57.12 40 H07 L7 Jens Petersson 57.36 41 H07 L5 Keith Beavers 57.54 42 H07 L1 Martin Viilep 57.69 42 H08 L5 Sander Ganzevles 57.69 44 H01 L6 Mattias Ohlin 57.75 45 H08 L8 Gabriel Mangabeira 58.08 46 H07 L3 Alexandr Ivlev 58.53 47 H07 L2 Andrei Mihailov 58.67 48 H07 L8 Nicholas Bovell 59.42 49 H06 L4 Mauricio Prudencio 59.62 50 H06 L8 Jared Heine 1:00.13 51 H06 L3 Ashby Brendan 1:00.21 52 H06 L7 Yau Sun Fai 1:00.87 53 H06 L2 Guillermo Andres Ramirez Lemis 1:01.38 54 H06 L1 Gustavo Vera 1:01.44 55 H05 L4 Long Do Huy 1:02.06 56 H06 L5 Mikhail Alekseyev 1:02.38 57 H05 L1 Roberto Sanso 1:02.40 58 H04 L3 Khaly Ciss 1:02.49 59 H05 L5 Danil Bugakov 1:02.67 60 H05 L7 Mohammad Nazeri 1:02.75 61 H06 L6 Yury Zaharov 1:02.91 62 H04 L4 James Walsh 1:03.72 63 H05 L3 Abed Rahman Kaaki 1:03.77 64 H05 L6 Oleg Deikrishvili 1:03.84 65 H04 L5 Chi Lon Lei 1:03.86 66 H03 L5 Onan Thom 1:03.91 67 H04 L6 Ammar Musaed Al Tamimi 1:04.31 68 H04 L2 Omar Abu Faris 1:04.45 69 H03 L6 Seung Gin Lee 1:04.80 70 H05 L2 Olufolahan Oluwole 1:05.35 71 H04 L8 Kabir Walia 1:05.50 72 H04 L1 Rubel Mohammad Rubel Rana 1:05.62 73 H05 L8 Rony Bakale 1:05.82 74 H03 L2 Nuno Rola 1:06.49 75 H02 L5 Patrick Boustany 1:07.14 76 H03 L3 Daniel Kang 1:07.92 77 H03 L4 Urnultsaikhan Ganbold 1:08.19 78 H03 L7 Sean Chow 1:09.18 79 H02 L1 Muzeya Muzyamba 1:10.71 80 H02 L6 Kin-Vincent Duenas 1:11.15 81 H01 L4 Peter James Linch 1:12.30 82 H02 L2 Leonel Matonse 1:13.11 83 H02 L8 Mohammed S. Abbas 1:13.75 84 H03 L8 Hadjamamed Hadjamamedov 1:14.23 - - Randall Bal DQ - - Landry H. Degnifo Enokorin DNS - - Gibrilla Kanu DNS - - Awsan Mohammede Saleh Qardaa DNS - - Hem Lumphar DNS

References