New Zealand's top karters are heading to the Bay of Plenty this weekend for one of the country's biggest karting events.

Bay of Plenty Kart Club's Fagan's Valley Raceway between Te Puke and Papamoa is hosting the third round of this year's Mi Sedaap series for KZ2 and KF3 karts and the fourth round of the Gen-i Rotax Max Challenge of New Zealand for 125cc Rotax-powered karts.

Fagan's Valley Raceway is hosting one of the biggest karting events in the country this weekend. Photo: File.

Previous rounds of each series have been held at separate meetings but from this weekend on they will share top billing at the same meetings.

Drivers in both categories will be competing for more than points as well, with Rotax Max Challenge series promoter Right Karts announcing that competitors in the three classes, Right Karts 125cc Rotax Max Light, Arai Helmets Junior Max and Strata Networks 125cc Rotax Max Heavy, will compete for a pole position cash purse of $200 per class.

Commenting on the move series organiser Tony Chambers says the series is really heating up.

'We have some close positions in all three classes. It is especially pleasing this weekend to see the largest field to date in the Junior Max class.”

The organisers of the Mi Sedaap Pro Kart Series are also offering prize money with $1000 per round up for grabs in their (Junior) KF3 support class.

Heading the points in the Right Karts 125cc Rotax Max Light class heading into the weekend's meeting is defending class title holder and 2012 series round one winner Daniel Kinsman, with competition expected to come from round two winner Daniel Connor and Kinsman's older brother Mathew, who beat both to the flag in the Final at round three.

Christchurch's Scott Manson leads the point's table in Arai Formula Junior after claiming victory at the first two rounds, but Palmerston North driver Josh Drysdale is within striking distance after finally managing to get the better of Manson at the third round.

Hawke's Bay driver Zack Zaloum heads the point's standings in the Strata Networks 125cc Rotax Max Heavy class after three class round wins from three starts.

Former rally ace Andrew Grant is second in his re-born career as a karter, with defending class title holder Aarron Cunningham in third place.

The Fagan's Valley track will be open for testing today with qualifying and the first heats on Saturday and subsequent heats, Pre-Finals and Finals on Sunday.

Check out why Papamoa 10-year-old Joseph Terry loves karting here.