An emotional Nikki Hamblin said she was in shock after failing to advance to the semifinals of the 1500m at the Rio Olympics.
Hamblin found it hard to control tears after the race, saying she let herself down with a 13th place finish in her heat after being handily placed for most of the race.
"My whole heart was in that race," she told NZ Newswire.
"I feel that performance doesn't come close to showing what I've put in and what other people have put in for me. I'm maybe in a little bit of shock."
Hamblin, 27, won silver over both 800m and 1500m at the Delhi Commonwealth Games in 2010 but has since battled a variety of leg and foot injuries, one of which ruled her out of the London Olympics.