Teammates Corey Lewis and Al Carter were unable to start the race, but Trent Hindman and Ashley Freiberg had a solid run.
The No. 75 Honda Civic Si was the top-finishing Honda in the 2.5-hour event.
A total of nine BMWs were entered in the race.
The popular squad scored a double-podium finish.
Third win for Rum Bum Racing at Daytona, 16th overall IMSA win
Through the chaos the familiar yellow and blue No. 13 Porsche emerged to score a third place finish in the race...
Also wins the race on a wet, treacherous track.
The final margin of victory was 2.186 seconds seconds.
Miller/Multimatic Mustang, Compass 360 Honda take race wins.
Season finale at Canadian Tire Motorsport Park.
Second-place finish helps Liddell, Davis gain GS point lead.
It was a heartbreaking day for the team and its drivers Matt Plumb and Nick Longhi...
Sloan Urry, winner of yesterday's race, second.
Round 10 at Road America a true battle.
Tops Chris Green, winner of round 7 at Trois-Rivieres.
Camaro Z/28 driver passes Kleinubing on last lap.
Points leader adds to his standing.
Lewis, Ellsworth top ST field.
First series victory of the season for the Orlando driver.
Tough weather conditions in Toronto made for a hectic race.
Remo Ruscitti dominates in a car he piloted for the first time during a pre-event test earlier in the week.
When Rum Bum Racing entered Round 7 of the IMSA Continental Tire SportsCar Challenge at Canadian Tire Motorsport Park, the team knew it had its work cut out for them.
Isman and Ruscitti top ST class in the Autometrics Porsche Cayman.
Second win for Liddell, Davis nets GS manufacturer championship lead for Chevrolet.
'There is just no holding off Mikhail'
Points lead doesn't mitigate losses
Michael Valiante and Chad Gilsinger take ST victory for Honda over Wayne Nonnamaker Porsche.
The result sees Rum Bum Racing maintain its position of third in the provisional championship standings.
Valiante, Gilsinger take Street Tuner victory for Honda over Nonnamaker Porsche