Australian cyclist Shane Perkins survived a photo finish in the repechage to scrape into the second round of the men's keirin at the London Olympics.
Perkins, the 2011 world champion in the event, faded badly in finishing fifth in his opening heat, having gone out hard in an attempt to lead from the front.
He was far more cautious in the repechage, holding on to claim third - to take the last spot in the second round to be held on Tuesday night.
It was an anxious few moments for the Australian, the photo finish revealing the gap between Perkins and Polish rider Kamil Kuczyski was barely the width of a tyre.
Meanwhile Annette Edmondson finished fourth in the fourth event of the women's omnium - the individual pursuit - at the Olympic Velodrome.
She finished in a time of 3min 35.958sec, more than six seconds behind Sarah Hammer of the US, who extended her lead ahead of Tuesday night's final two races of the event.
Edmonson's time saw her joined in third spot on the standings by Canada's Tara Whitten, the pair on 21 points after Whitten finished third in the individual pursuit.
Hammer leads on 13 points with Great Britain's Laura Trott just one point behind in second.
The event concludes with the scratch race and time trial