Sam Clark capped a flawless campaign as the Ray Martin Memorial 150 Distance League reached a thrilling climax at the Mountbatten Centre.
The i-team/KSL/inTandem starlet notched his fifth win last Wednesday to sweep the board in the under-12s championship.
Caitlin Peters, of Fareham Wheelers, was second in the overall standings ahead of Vaughan Marris.
Meanwhile, George Moore won a game of cat and mouse in the fifth and final round of the under-16s championship.
A team-mate of Clark, Moore held off Brendan Drewett in the sprint to take the league title from his Fareham Wheelers rival, with Harvey Morcombe third.
Another i-team talent, Adam Potter, had to settle for second position in the under-10s series.
He was beaten into third in the final round by Fareham’s Izzy Brickell – but neither could stop champion Isabella Escalera in her tracks.
The leading under-14 in the series was i-team’s Joe Truman, while the Portsmouth-based club boasted the top rider in the under-eights, too, in Jack Cromie.
In the senior series for the elite and category 1/2/3 riders, the title went to Al Murison, of Equipe-CMI.
However, Matt Hargroves won the final round for Hargroves Cycles and Toby Neave, of Portsmouth-based VC St Raphael, finished third in the overall standings.
Glyn Ostler, of Blazing Saddles, and MJS Racing’s Mark Barfield finished joint top of the senior competition for categories 3/4/J/W – with the former boasting two race wins.
Andy Redding was third for i-team, while Cannondale RT’s James Cotty won the final round.
After the climax of the Ray Martin League, tomorrow night sees the start of the 20-round Portsmouth Cycle Track League at the Mountbatten Centre (from 6pm)