2021 FINA World Swimming Championships (25 m) – Men's 100 metre backstroke explained

Event:	Men's 100 metre backstroke
Competition:	2021 FINA World Swimming Championships (25 m)
Venue:	Etihad Arena
Location:	Abu Dhabi, United Arab Emirates
Dates:	16 December (heats and semifinals) 17 December (final)
Competitors:	56
Nations:	49
Win Value:	49.23
Gold:	Shaine Casas
Goldnoc:	USA
Silver:	Kliment Kolesnikov
Bronze:	Robert Glință
Bronzenoc:	ROU
Prev:	2018
Next:	2022

The Men's 100 metre backstroke competition of the 2021 FINA World Swimming Championships (25 m) was held on 16 and 17 December 2021.^[1]

Records

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

The heats were started on 16 December at 10:56.^[2]

Rank	Heat	Lane	Time	Notes
1	4	3	50.38	Q
1	4	4	50.38	Q
3	6	0	50.40	Q
3	6	6	50.40	Q
5	4	5	50.52	Q
6	6	4	50.55	Q
7	5	5	50.80	Q
8	5	4	50.83	Q
9	6	5	50.88	Q
10	5	3	50.92	Q
11	5	6	51.01	Q
12	5	2	51.04	Q
13	6	1	51.09	Q, NR
14	6	3	51.25	Q
15	6	7	51.35	Q
16	4	7	51.46
16	6	2	51.46
18	5	0	51.50
18	5	7	51.50
20	4	2	51.87
21	5	1	51.92
22	5	9	52.07
23	3	4	52.19
24	4	6	52.25
25	4	1	52.26
26	5	8	52.54
27	4	8	52.78
28	4	9	52.81	NR
29	3	9	52.82	NR
30	6	8	52.90
31	6	9	52.96
32	3	6	53.21
33	3	2	53.54
34	2	5	53.63
35	2	3	53.69	NR
36	4	0	53.82
37	3	5	53.90
38	3	8	54.22
39	2	4	54.27
40	3	1	54.54	NR
41	2	1	54.83
42	2	8	54.86
43	3	0	54.99
44	2	7	55.00	NR
45	3	3	55.42
46	2	2	55.55
47	2	9	56.28
48	3	7	56.94
49	2	0	57.58
50	1	4	57.98
51	2	6	58.30
52	1	6	58.85
53	1	3	58.96
54	1	2	59.81
55	1	5
56	1	7

The swim-off was held on 16 December at 12:42.^[3]

Rank	Lane	Name	Nationality	Time	Notes
1	5			51.09	Q
2	4			51.21

The semifinals were started on 16 December at 18:16.^[4]

Rank	Heat	Lane	Time	Notes
1	1	3	49.57	Q
1	2	5	49.57	Q
3	2	6	49.89	Q
4	2	4	49.94	Q
5	1	5	49.99	Q
6	1	4	50.05	Q
7	2	3	50.11	Q
8	1	6	50.21	Q
9	2	7	50.22
10	2	2	50.30
11	1	2	50.34
12	1	7	50.59	NR
13	1	1	50.88
14	1	8	50.96
15	2	1	51.00	NR
16	2	8	51.34

The final was held on 17 December at 18:07.^[5]