Rio Olympics 2016: While you were sleeping - day 14

New Zealand's Jaimee Lovett, Kayla Imrie, Aimee Fisher and Caitlin Ryan react after sealing a place in the final of the women's K4 500m Olympic kayaking event. Photo / AP

Day 14 of the Rio Games has seen the emergence of a new Kiwi medal contender, and a late revival of Lydia Ko's medal hopes.

The first hole in one of her career has helped Ko surge up the leaderboard in the third round of the Rio Olympics golf tournament and into medal contention.

Ko - who started the day at three-under - aced the par-three eighth hole to move to nine-under for the tournament this morning, and is now one shot off the lead in third after signing for a six-under 65.

The 19-year-old world No 1 found form with her putter on the front nine at Marapendi Reserve Golf Course to birdie three of her first six holes, before her eagle at the 154-yard eighth and another birdie at the ninth moved her further up the leaderboard. She did all her work on the outward nine, carding a 29, before nine straight pars on the back nine.

New Zealand's first ever women's K4 sprint canoe team booked their place in the Olympic 500m final after two highly impressive races.

Jaimee Lovett, Kayla Imrie, Aimee Fisher and Caitlin Ryan were an effortless third in their heat and then dominated their seven-boat semifinal, winning it to book a place in tomorrow morning's six-boat decider.

It was heartbreak again for the women's Black Sticks, who finished fourth for their second straight Olympics.

The New Zealand women lost 2-1 to Germany in this morning's bronze medal play-off after failing to convert opportunities into goals. They amassed 16 shots on goal to Germany's five, and forced six penalty corners to one, but just couldn't finish off the chances they created.

There were tearful scenes following the match, with many of the players left inconsolable as they reflected on another campaign that had fallen just short.

A distraught skipper Kayla Whitelock confirmed she had played her last game for the Black Sticks.

A heavy crash in the second run of his Olympic semifinal has cost New Zealand's sole BMX representative, Trent Jones, a place in the Rio final.

The 22-year-old made a promising start to his semifinal, finishing third in the opening race. He looked strong again early in the second run and was sitting in fourth position until he miscued a jump and crashed heavily.

The earlier crash seemed to dent Jones' confidence, and the battered and bruised Kiwi didn't feature in the third race.

Race walker Quentin Rew recorded a much-improved performance in the longer 50km race overnight, finishing in 12th place after being disqualified from the 20km event last weekend.

His partner Alana Barber later finished 35th in the women's 20km event.