Para-cycling Track World Championships: Jaco van Gass wins two of four GB golds
Jaco van Gass claimed victory in the men's C3 scratch and omnium events as Great Britain won four golds on the final day of the Para-cycling Track World Championships in Canada.
The 33-year-old rode a lap clear to triumph in the scratch, sealing the overall omnium title in the process.
Sophie Thornhill and Helen Scott earned their second gold with victory in the women's tandem sprint.
James Ball and Lewis Stewart then triumphed in the men's final.
Ball and pilot Stewart edged out compatriots Neil Fachie and Matt Rotherham in the gold medal race, having narrowly lost to the pair in the tandem time-trial final on Saturday.
After successfully defending their tandem time-trial title on day three, Thornhill and Scott beat Belgium's Griet Hoet and Anneleen Monsieur in straight sprints to become double world champions.
Elsewhere, Louis Rolfe, Jon-Allan Butterworth and 16-time track world champion Jody Cundy won silver for GB in the mixed team sprint final.
They finished in 48.803 seconds as winners China set a world record of 48.096 to take the gold.
Van Gass ended the championships with four medals - including three world titles - having also won C3 kilo time trial gold and pursuit silver earlier in the championships.
"It's been so far beyond anything I ever expected," said Van Gass. "I'm a bit speechless about walking away with three jerseys - from working constantly for one, to have three in one championship is more than a dream."
Fellow Briton Fin Graham finished seventh in the C3 scratch, won by Van Gass, while William Bjergfelt finished fourth and Jon Gildea seventh in the C5 event.
Great Britain finish the championships with 21 medals - 11 of which were gold - making it the team's most successful ever worlds.