The KF3 field may have been slightly smaller than previous years but the final was one of the best as Ben Barnicoat held off stiff challenges from Sennan Fielding and Daniel Vaughan to take the GP title. Fielding charged up from the back of the grid to take the lead only to get bundled back to third in a late exchange with Barnicoat at the second hairpin.
Vaughan grabbed second as Fielding recovered and got to within inches of Barnicoat through the final chicane but fell short by just seven hundredths. Fielding was a disconsolate third with Charlie Robertson fourth and Ricky Collard fifth.
Like Fielding, Callan O'Keefe made excellent progress from the rear of the field and got as high as fourth before his throttle stuck open coming onto the start/finish straight, resulting in a big accident from which O'Keefe was lucky to emerge unscathed.
Italian driver Christopher Zani took eighth on his second Kartmasters appearance although Dubai's Edward Jones endured a torrid weekend and retired with mechanical problems on the opening lap.
For the first time since 2005 the TKM classes were included in the main GP event instead of having their own stand-alone event in November and with some breathtaking racing in the Junior and Senior class they more than justified their inclusion.
Will Van Es timed his last lap move on Oliver Basey-Fisher for the Junior TKM lead to perfection to take the GP Plate after a thrilling final. Stephen Letts took third after leading in the early stages while polesitter Ash Robinson could only finish fifth behind Jack Partridge.
Cadet graduate Jake Walker ran strongly all weekend and was in a lead pack that comprised no less than eighth karts until he developed mechanical problems half a dozen laps from home and had to retire.
The Senior TKM Extreme final was almost a complete opposite of the Junior event with contender after contender falling by the wayside until just seven karts remained.
Through the attrition Rob Wallace emerged to win by less than a second from Jason Moore, who led earlier in the race until running wide coming out of the Mike Wilson complex and brushing the barriers. Just as Moore regained the track Phil Smith went through to take the lead only to retire metres later when his chain came off.
Elliott Burton and Randall Lynn also retired whilst in the lead group which left Ryan Cole ahead of Wallace with seemingly the race at his mercy. But then Cole's kart suddenly slowed and stopped, handing Wallace a large lead, which he defended despite the encroachment of the recovering Moore towards the end.
Sam Brown was third with Daniel Butcher-Lord, Josh Waring, Ash Crossey and Dean Golba the only other survivors.