NZ Rowing lodges complaint about capsizing conditions in Rio

New Zealand Rowing has lodged an official complaint following extremely rough conditions on the first day of the Olympics in Rio de Janeiro.

Serbia's Milos Vasic and Nenad Bedik capsized near the end of their men's pairs heat, prompting some rowers to call for a postponement.

The NZ Olympic Committee has confirmed that NZ Rowing has gone to the International Rowing Federation (FISA) about the conditions.

"The team was happy at the start of the day but as it deteriorated the team would've liked for it to be postponed," NZOC spokesperson Ashley Abbott says.

NZ Rowing has made an official complaint to FISA following the rough conditions on day one in Rio. Source: 1 NEWS

World and Olympic champion pair Eric Murray and Hamish Bond ploughed on to win comfortably and qualify second-fastest for the semi-finals behind Australia.

NZ's Chef de Mission and former Olympic rower Rob Waddell says the NZ rowers' perseverance was a testament to their skill.

"When you see boats going under water and sinking and people falling out clearly it's getting to the limit of what might be acceptable for racings," Waddell says.

"Clearly it was really rough, from my years competing, you wouldn't train in those conditions so racing is clearly pushed."