The women's 100 metre individual medley event at the 2010 FINA World Swimming Championships (25 m) took place 16 December – 17 December. The heats and semifinals were held on 16 December. The final was held on 17 December.

Records

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

	Name	Nation	Time	Location	Date
World record	Hinkelien Schreuder Hinkelien Schreuder Hinkelien Schreuder is a butterfly, freestyle and backstroke swimmer from The Netherlands, who also competed in the medley events...		57.74	Berlin Berlin Berlin is the capital city of Germany and is one of the 16 states of Germany. With a population of 3.45 million people, Berlin is Germany's largest city. It is the second most populous city proper and the seventh most populous urban area in the European Union...	15 November 2009
Championship record	Jenny Thompson Jenny Thompson Jennifer Beth Thompson is an American former competitive swimmer, and one of the most decorated Olympians in history, winning twelve medals, including eight gold medals , in the 1992, 1996, 2000, and 2004 Summer Olympics.Thompson, a Massachusetts native who calls Dover, New Hampshire her...		59.30	Hong Kong Hong Kong Hong Kong is one of two Special Administrative Regions of the People's Republic of China , the other being Macau. A city-state situated on China's south coast and enclosed by the Pearl River Delta and South China Sea, it is renowned for its expansive skyline and deep natural harbour...	1 April 1999

The following records were established during the competition:

Date	Round	Name	Nation	Time	WR	CR
16 December 2010	Heats	Ariana Kukors Ariana Kukors Ariana Kukors is an American swimmer. She currently holds the world record in the 200-meter individual medley ....		59.14		CR
16 December 2010	Semifinals	Ariana Kukors Ariana Kukors Ariana Kukors is an American swimmer. She currently holds the world record in the 200-meter individual medley ....		58.65		CR

Heats

66 swimmers participated in 9 heats, qualified swimmers are listed:

Rank	Heat	Lane	Name	Time	Notes
1	2	1		59.14	Q, CR
2	8	4		1:00.01	Q
2	8	5		1:00.01	Q
4	9	3		1:00.14	Q
5	8	2		1:00.15	Q
6	8	3		1:00.33	Q
7	9	4		1:00.40	Q
8	2	3		1:00.46	Q
9	8	6		1:00.57	Q
10	9	6		1:00.61	Q
11	9	5		1:00.73	Q
12	2	6		1:00.83	Q
13	9	2		1:01.08	Q
14	7	6		1:01.12	Q
15	8	7		1:01.13	Q
16	7	4		1:01.37	Q

Semifinal 1

Rank	Lane	Name	Time	Notes
1	2		59.18	Q
2	6		59.67	Q
3	4		59.86	Q
4	5		59.87	Q
5	1		1:00.44
6	7		1:00.79
7	3		1:01.12
8	8		1:02.87

Semifinal 2

Rank	Lane	Name	Time	Notes
1	4		58.65	Q, CR
2	2		59.36	Q
3	6		59.63	Q
4	5		59.77	Q
5	3		1:00.49
6	1		1:00.85
7	7		1:00.96
8	8		1:01.86

Final

Rank	Lane	Name	Time	Notes
	4		58.95
	5		59.27
	3		59.53
4	2		59.85
5	1		59.97
6	7		1:00.19
7	6		1:00.75
8	8		1:01.29

External links

• 2010 FINA World Swimming Championships (25 m): Women's 100 m individual medley entry list, from OmegaTiming.com; retrieved 2010-12-14.