Competing for a prize pool of $2000, four teams of three competitors nominated for this year's race, with Richmond-based drivers Tom Auty, Saxon Lynn and Alister Kelso eventually claiming bragging rights.

Race organiser Nikko Lord, Sutherland, Richmond, said the nine-lap race had become one of the main features of the field days.

"The rules have been pretty loose on what qualifies as a lawn mower the past few years, so we've seen a fair range of mowers slash four-wheelers which has been a really good laugh," he said.

"There's a high failure rate on these mowers; generally two will blow up and then the next year another two teams will pop up."

Reaching speeds of up to 90km/h, Mr Lord said the spectacle included a lot of wrecks, Avgas fumes and dust. Race rules include no blades on the cutting deck and the driver must remain seated at all times.