First Michael Cullen and then James Clarke had trimmed the gap to Slater but it now stands at four victories again after his 15th and 16th triumphs of 2023 at Cadwell Park.
However, it was not a clean sweep for the teenager in Lincolnshire as he stalled and subsequently retired from the finale - which also meant he missed out on the chance of clinching the title with two events to spare after a truly dominant season.
