Swimming at the 2011 Pan American Games – Men's 400 metre individual medley

Men's 400 metre individual medley at the 2011 Pan American Games
Venue	Scotiabank Aquatics Center
Dates	October 15 (preliminaries and finals)
Competitors	11 from 9 nations
Medalists
Thiago Pereira   Brazil   Conor Dwyer   United States   Robert Margalis   United States
«2007 2015»

The men's 400 metre individual medley competition of the swimming events at the 2011 Pan American Games took place on the 15 of October at the Scotiabank Aquatics Center. The defending Pan American Games champion is Thiago Pereira of Brazil.

This race consisted of eight lengths of the pool. The first two lengths were swum using the butterfly stroke, the second pair with the backstroke, the third pair of lengths in breaststroke, and the final two were freestyle.

Records

Prior to this competition, the existing world and Pan American Games records were as follows:

World record	Michael Phelps (USA)	4:03.84	Beijing, China	August 10, 2008
Pan American Games record	Thiago Pereira (BRA)	4:11.14	Rio de Janeiro, Brazil	July 17, 2007

Qualification

Each National Olympic Committee (NOC) was able to enter up to two entrants providing they had met the A standard (4:34.2) in the qualifying period (January 1, 2010 to September 4, 2011). NOCs were also permitted to enter one athlete providing they had met the B standard (4:41.5) in the same qualifying period.

Results

All times shown are in minutes.

KEY:

q

Fastest non-qualifiers

Q

Qualified

NR

National record

PB

Personal best

SB

Seasonal best

Heats

The first round was held on October 15.

Rank	Heat	Lane	Name	Nationality	Time	Notes
1	2	5	Conor Dwyer	United States	4:24.98	QA
2	2	4	Thiago Pereira	Brazil	4:26.27	QA
3	1	4	Robert Margalis	United States	4:29.70	QA
4	2	3	Esteban Enderica	Ecuador	4:31.15	QA
5	2	6	Ezequiel Trujillo	Mexico	4:31.31	QA
6	1	6	Esteban Paz	Argentina	4:34.08	QA
7	1	5	Diogo Yabe	Brazil	4:34.18	QA
8	1	3	Liam Dias	Canada	4:37.60	QA
9	1	2	Eddy Marin	Venezuela	4:38.88	QB
10	2	2	Diego Castillo	Panama	4:45.31	QB
11	2	7	Joel Romeu	Uruguay	4:53.76	QB

B Final

The B final was also held on October 15.

Rank	Lane	Name	Nationality	Time	Notes
9	5	Diego Castillo	Panama	4:40.04
10	4	Eddy Marin	Venezuela	4:40.08

A Final

The A final was held on October 15.

Rank	Lane	Name	Nationality	Time	Notes
	5	Thiago Pereira	Brazil	4:16.68
	4	Conor Dwyer	United States	4:18.22
	3	Robert Margalis	United States	4:24.88
4	6	Esteban Enderica	Ecuador	4:26.43
5	2	Ezequiel Trujillo	Mexico	4:30.02
6	8	Liam Dias	Canada	4:34.11
7	1	Diogo Yabe	Brazil	4:35.66
8	7	Esteban Paz	Argentina	4:37.67