Men
| World records | 200 m individual medley | Ryan Lochte (USA) | 1:54.00 | Shanghai, China | July 28, 2011 |
| 400 m individual medley | Michael Phelps (USA) | 4:03.84 | Beijing, China | August 10, 2008 | |
| 4x100 m medley relay | United States | 3:27.28 | Rome, Italy | August 2, 2009 |
Women
| World records | 200 m individual medley | Ariana Kukors (USA) | 2:06.15 | Rome, Italy | July 27, 2009 |
| 400 m individual medley | Ye Shiwen (CHN) | 4:28.43 | London, U.K. | July 28, 2012 | |
| 4x100 m medley relay | United States | 3:52.05 | London, U.K. | August 4, 2012 |
- A listing of how the World Records have progressed over time can be found here: 100 IM, 200 IM, 400 IM and Medley Relay.
Read more about this topic: Medley Swimming
Famous quotes containing the words world and/or records:
“O you mighty gods!
This world I do renounce, and in your sights
Shake patiently my great affliction off.
If I could bear it longer, and not fall
To quarrel with your great opposeless wills,
My snuff and loathed part of nature should
Burn itself out.”
—William Shakespeare (1564–1616)
“It’s always the generals with the bloodiest records who are the first to shout what a hell it is. And it’s always the war widows who lead the Memorial Day parades.”
—Paddy Chayefsky (1923–1981)