After winning the opening Superbike race of the Ulster GP on the road, but losing it on corrected time to Bruce Anstey, Guy Martin broke clear of the leading group early on his Relentless by TAS Suzuki GSXR1000 to win the head to head battle in clear air against his rivals.
Once more, the race was delayed by rain in the area of Cochranstown, but was dry elsewhere which made choice of tyre compounds very different. Significantly though, both Martin and Anstey chose a cut slick on the front and full slick on the rear.
Keith Amor led initially on his TT Legends Honda but Martin managed to hit the front during lap one and, possibly still fired up from the result of the earlier Superbike race which Anstey had won on corrected time, got into his rhythm and made a gap to the following group of Amor, William Dunlop and Gary Johnson.
Meanwhile, Anstey had again got clear of his pursuers in the second group but, with Martin also with a clear track in front of him, he wasn't able to take advantage of his track position in the same way as previously.
It was enough for Martin to cross the line in front by three seconds, a popular result in the final international Superbike race of the season.
Amor and William Dunlop completed the podium on their respective Hondas, while Cameron Donald and Anstey rounded out the top five.
By Graham Edwards