Certainly, Capp has a fair few hurdles to overcome, in the shape of other in-form swimmers.
Yasunari Hirai is a major danger. Japan's top ranked open water swimmer won the opening two events of the State Ocean Swim Series and returns from his training base across the Tasman with his eye firmly on claiming the overall series honours.
Likewise, New Zealand open water champion Kane Radford is determined to stamp a Kiwi name on the winner's trophy while current series leader Phillip Ryan has finished on the podium in all four events he's swum this season.
The other man to watch out for could be China's Jun Dai. The Coast Swim Club member has his heart set on one day representing New Zealand, once he has satisfied the residency criteria, and showed he would be a valuable addition to the Kiwi team when he won this week's national 400 metres freestyle title.
Meanwhile, the women's field also has a couple swimmers who have qualified for the World Champs with Lauren Boyle and Emma Robinson both competing.
Boyle is the undoubted superstar of New Zealand swimming and the 1500 metres short course world record holder showed her class with a comfortable victory in the 400 metres at this week's champs. That proved a great fillip for Robinson, who also set a qualifying time in the event as she tried to keep pace with Boyle.
However, the woman to beat in the State King of the Bays is Charlotte Webby. The 26-year-old is three for three in the series this season, winning the Bay of Islands Classic, the Harbour Crossing and the Sand to Surf.
However, after her last victory was secured in a mad dash up the beach ahead of Australian Samantha Watts, Webby knows she can take nothing for granted.
"I learnt my lesson in Mt Maunganui, which is not a bad thing," said Webby.
Around 1600 swimmers are set to take part today with the 2.8km event featuring the elite swimmers scheduled to start at 11am.
Series standings (after 5 rounds)
Men
1. Phillip Ryan (Auckland) 299.01
2. Troy Balvert (Waikato) 295.82
3. Nathan Capp (Auckland) 200.00
4. Yasunari Hirai (Japan) 200.00
5. Kane Radford (Rotorua) 199.71
Women
1. Charlotte Webby (New Plymouth) 300.00
2. Abi Chapman (Auckland) 288.26
3. Gendi Roberts (Christchurch) 283.72
4. Aimee Moss (Auckland) 283.46
5. Sam Winward (Christchurch) 282.30