He says the nationals have been good preparation for tomorrow although he does expect to be feeling weary after the 1500 metre freestyle final tonight.
"It should be good, I think, although with the 1500 free I could be a little tired from that. I will still give it my best shot."
The series is wide open with the way it is structured. Each race winner is awarded 100 points but points count from just three of the six races, and with double points on offer in the King of the Bays, the final standings are anything but decided.
Capp's main rival other than Radford will be Australian Rhys Mainstone, who lies in sixth place but won the State La Grande Classic in Akaroa and the State Sand To Surf in Mt Maunganui.
He will claim the title with the maximum 400 points if he wins on Saturday.
The women's series is also nicely set up for an exciting finish. Auckland teenager Paige Schendelaar-Kemp is the series leader, but the overwhelming favourite to claim her third straight series is 28-year-old Queenslander Melissa Gorman, who won the State Sand To Surf in Mt Maunganui and in Akaroa.
The 2009 5km open water world champion and two-time Commonwealth Games medallist has been in dominant form despite only recently returning from shoulder surgery.