Athletics at the 2010 South American Games – Men's 400 metres

Athletics at the 2010 South American Games
Track events
100 m	men	women
200 m	men	women
400 m		women
800 m	men	women
1500 m	men	women
5000 m	men	women
10,000 m	men	women
100 m hurdles		women
110 m hurdles	men
400 m hurdles	men	women
3000 m steeplechase	men	women
4×100 m relay	men	women
4×400 m relay	men	women
Field events
Long jump	men	women
Triple jump	men	women
High jump	men	women
Pole vault	men	women
Shot put	men	women
Discus throw	men	women
Javelin throw	men	women
Hammer throw	men	women
Combined events
Heptathlon		women
Decathlon	men

The Men's 400m event at the 2010 South American Games was held on March 20, with the heats at 11:30 and the Final at 18:45.

Gold	Silver	Bronze
Omar Longart  Venezuela	Hederson Estefani  Brazil	Hélder Alves  Brazil

Standing records prior to the 2010 South American Games
World record	Michael Johnson	United States	43.18	Seville, Spain	26 August 1999
World Leading	Ben Offereins	Australia	44.86	Sydney, Australia	27 February 2010
South American record	Sanderlei Parrela	Brazil	44.29	Seville, Spain	26 August 1999
South American U23 record	Andrés Silva	Uruguay	45.02	Fortaleza, Brazil	17 May 2006

Results were published.^{[1][2][3][4][5]}

Rank	Athlete	Nationality	Reaction	Result	Notes
1	Hélder Alves	Brazil	0.199	48.30	Q
2	Jorge Eduardo Montero	Ecuador	0.238	48.32	Q
3	Javier Palacios	Colombia	0.405	48.34	Q
4	Rubén Headly	Venezuela	0.209	48.60	q
5	Julio Alfredo Pérez	Perú	0.255	48.79
6	Diego Lira	Chile	0.385	49.12

Rank	Athlete	Nationality	Reaction	Result	Notes
1	Omar Longart	Venezuela	0.238	46.94	Q
2	Hederson Estefani	Brazil	0.229	47.23	Q
3	Terrence Agard	Netherlands Antilles	0.222	47.95	Q, †
4	Matías Larregle	Argentina	0.205	48.24	q
5	Johan Ramírez	Colombia	0.235	48.79
6	Wilter Cagua	Ecuador	0.225	49.73

^†: Not eligible for the South American Under-23 Championships.

Rank	Athlete	Nationality	Reaction	Result	Notes
	Omar Longart	Venezuela	0.516	46.09	PB
	Hederson Estefani	Brazil	0.281	46.85
	Hélder Alves	Brazil	0.150	47.40
4	Terrence Agard	Netherlands Antilles	0.295	47.47	†
5	Jorge Eduardo Montero	Ecuador	0.280	48.04
6	Rubén Headly	Venezuela	0.194	48.08
7	Javier Palacios	Colombia	0.458	48.61
–	Matías Larregle	Argentina		DNS

^†: Not eligible for the South American Under-23 Championships.

• 2010 South American Under-23 Championships in Athletics

• Heat 1
• Heat 2
• Final