Swimming at the 2003 World Aquatics Championships – Men's 100 metre backstroke explained

Event:	Men's 100m Backstroke
Competition:	2003 FINA World Aquatics Championships
Dates:	21 July (prelims, semifinals) 22 July (final)
Win Value:	53.61 seconds
Gold:	Aaron Peirsol
Goldnoc:	USA
Silver:	Arkady Vyatchanin
Silvernoc:	RUS
Silver2:	Matt Welsh
Silvernoc2:	AUS
Prev:	2001
Next:	2005

The Men's 100 Backstroke event at the 10th FINA World Aquatics Championships swam 21 - 22 July 2003 in Barcelona, Spain. Preliminary^[1] and Semifinal^[2] heats swam on July 21; the Final^[3] 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

Rank	Heat + Lane	Time	Notes
1	S2 L5	54.28	q, CR
2	S1 L4	54.49	q
3	S1 L1	54.60	q
4	S2 L4	54.77	q
4	S2 L8	54.77	q
6	S2 L2	55.11	q
7	S2 L3	55.12	q
8	S1 L5	55.17	q

9	S2 L6	55.21
10	S1 L3	55.30
11	S1 L7	55.31
12	S1 L8	55.36
13	S2 L1	55.42
14	S1 L2	55.67
15	S1 L6	55.71
16	S2 L7	55.83

Rank	Heat+Lane	Time	Notes
1	H12 L4	54.79	q
2	H10 L2	54.81	q
3	H11 L4	54.99	q
4	H12 L6	55.06	q
5	H11 L7	55.11	q
6	H10 L8	55.28	q
7	H11 L1	55.29	q
8	H08 L4	55.41	q
9	H11 L5	55.42	q
10	H09 L8	55.47	q
10	H10 L3	55.47	q
12	H11 L2	55.49	q
13	H09 L1	55.56	q
13	H10 L5	55.56	q
15	H11 L6	55.62	q
16	H12 L5	55.67	q

17	H10 L7	55.76
18	H12 L8	55.80
19	H12 L3	55.81
20	H09 L5	55.82
21	H12 L1	55.85
22	H12 L7	55.90
23	H10 L6	55.94
24	H09 L4	55.95
25	H08 L2	56.00
26	H08 L7	56.06
27	H10 L1	56.14
28	H09 L7	56.22
29	H12 L2	56.31
30	H11 L3	56.34
31	H11 L8	56.38
32	H07 L6	56.42
33	H09 L2	56.44
34	H08 L6	56.58
35	H07 L4	56.60
36	H09 L3	56.77
37	H09 L6	57.01
38	H08 L3	57.10
39	H08 L1	57.12
40	H07 L7	57.36
41	H07 L5	57.54
42	H07 L1	57.69
42	H08 L5	57.69
44	H01 L6	57.75
45	H08 L8	58.08
46	H07 L3	58.53
47	H07 L2	58.67
48	H07 L8	59.42
49	H06 L4	59.62
50	H06 L8	1:00.13
51	H06 L3	1:00.21
52	H06 L7	1:00.87
53	H06 L2	1:01.38
54	H06 L1	1:01.44
55	H05 L4	1:02.06
56	H06 L5	1:02.38
57	H05 L1	1:02.40
58	H04 L3	1:02.49
59	H05 L5	1:02.67
60	H05 L7	1:02.75
61	H06 L6	1:02.91
62	H04 L4	1:03.72
63	H05 L3	1:03.77
64	H05 L6	1:03.84
65	H04 L5	1:03.86
66	H03 L5	1:03.91
67	H04 L6	1:04.31
68	H04 L2	1:04.45
69	H03 L6	1:04.80
70	H05 L2	1:05.35
71	H04 L8	1:05.50
72	H04 L1	1:05.62
73	H05 L8	1:05.82
74	H03 L2	1:06.49
75	H02 L5	1:07.14
76	H03 L3	1:07.92
77	H03 L4	1:08.19
78	H03 L7	1:09.18
79	H02 L1	1:10.71
80	H02 L6	1:11.15
81	H01 L4	1:12.30
82	H02 L2	1:13.11
83	H02 L8	1:13.75
84	H03 L8	1:14.23
-	-	DQ
-	-	DNS
-	-	DNS
-	-	DNS
-	-	DNS

Worlds 2003 results: Men's 100m Backstroke Prelims, from OmegaTiming.com (official timer of the 2003 Worlds); retrieved 2010-01-24.
Worlds 2003 results: Men's 100m Backstroke Semifinals, from OmegaTiming.com (official timer of the 2003 Worlds); retrieved 2010-01-24.
Worlds 2003 results: Men's 100m Backstroke Final, from OmegaTiming.com (official timer of the 2003 Worlds); retrieved 2010-01-24.