Preview of Day 13

Several New Zealand sailing crews find themselves in the medal hunt going into the final day of sailing.

With Day 12's postponement because of lack of wind, the anointment of Blair Tuke and Peter Burling as Olympic 49er champions has to wait another day. The New Zealand pair, silver medallists in London in 2012, have been so dominant, they have wrapped up the gold even before the medal race.

Not so comfortably placed are defending women’s 470 champions Jo Aleh and Polly Powrie, who are second going into their medal race. They are too far behind to claim first place, but will be keen to hold off a phalanx of challengers and at least claim the silver medal.

The women’s 49ers, Molly Meech and Alex Maloney, are engaged in a gripping battle for medals. Going into their medal race, four teams are within one point, so they face a virtual match race.

The fourth crew in action is the 470 men, where Paul Snow-Hansen and Daniel Willcox are in the middle of the bunch heading to their medal race.

Several New Zealanders have medal hopes on Day 13.

Lisa Carrington, already a gold medallist in the K1 200, is in the final of the K1 500, an event in which she has won a world title, but in which she is also not quite as dominant as in the short sprint.

In the athletics arena, shot putters Tom Walsh and Jacko Gill face qualifying in the morning (and hopefully the final in the evening). And Nick Willis bids to make a third successive Olympic final when he runs in the men’s 1500m heats.

The men’s triathlon tomorrow features two New Zealanders, Ryan Sissons and Tony Dodds. They would love to relive the glory of the 2004 Olympic triathlon, when Hamish Carter and Bevan Docherty took gold and silver.

BMX rider Trent Jones contests the quarter-finals of his event tomorrow.

Finally, Lydia Ko resumes her quest for an Olympic golf medal. Though not quite at her best, she had a 69 today and is within striking distance of the leaders.