Ed McKean has been crowned the winner of the Armed Forces Championship at Donnington Park.
It follows eight rounds of races at four British circuits.
Changes to the format of this year's Armed forces challenge, from 4 X 40-minute races, to 8 X 20-minute events, had the desired effect.
After rounds at Oulton Park in April, Silverstone in May and Rockingham in July, the final two races were at Donington Park.
The RAF's Chris Slator narrowly led the championship, from the Army's Chalkie White and Darren Howe of the RAF.
Two other drivers were also in the mix, including Ed McKean, who after the first of the two Donington races had only a 'mathematical' chance of claiming victory.
However as the final race of the year developed, one by one his rivals dropped out, including Darren Howe on the very last lap..
The changes brought in, mean more of the 40 plus drivers registered to compete this year had a better chance of scoring points because even if they missed out on the first race, they had time to fix any mechanical issues and continue.
At the end of October, the RAF, Army and Royal Navy teams will complete their season with the annual Holly Birkett 6 Hour Relay Race at Silverstone, which the RAF won last year for the third time.
The RAF will also be entering one car at the Race of Remembrance over the 10th and 11th of November at Castle Coombe on Anglesy.
Next year the forces drivers hope to compete on at least three different circuits.