And just like that, we’re down to the final three teams on The Amazing Race Canada. After thousands of miles and millions of footsteps, Olympians Meaghan and Natalie, best buds Mickey and Pete and co-workers Ryan and Rob will face off in Sunday’s season finale in Ottawa where one team will claim the grand prize.

Unfortunately, not in the running for the cash, cars and other baubles are siblings Sukhi and Jinder, who arrived on the mat in last place on the windy coast of New Brunswick and were eliminated.

“We feel so blessed that we got to do 11 Legs,” Jinder told host Jon Montgomery. “Now that we’ve done this race, I don’t want our lives to be any less extraordinary.” I really have to acknowledge how the pair evolved throughout the season. In the beginning, they were plagued by nerves and missed easy clues and got lost often, but as the Legs continued they became stronger and more cohesive. Sadly, a case of one red traffic light may have been the reason they were cut.

After placing first in Prince Edward Island, Sukhi and Jinder were the first to depart from Charlottetown. Their haste to get out of town and across the Confederation Bridge led to driving through a red light … and into a 15-minute penalty. They could only watch as Meaghan and Natalie and Mickey and Pete drove past and into the lead. The Olympians and the best friends arrived at and completed the Dairy Queen serving challenge and got to the Detour card location within seconds of each other. Both teams–and, as it turned out, all four–chose the Flag It task, a horribly complex thing where maritime flags denoting different nautical messages had to be hoisted up a flag pole in a certain order.

The difficulty of the test–so many flags looked exactly the same–meant that all four teams ended up in the muck surrounding the Hopewell Rocks in the Bay of Fundy at the same time, struggling to figure out why they weren’t given the green light to advance to rock climbing and, eventually, the mat. Meaghan and Natalie were the first to realize what they had done wrong and sprinted off to another first-place finish. Mickey and Pete were next, followed by Ryan and Rob and Sukhi and Jinder. The co-workers’ few seconds head start meant the difference between them placing third and advancing to Sunday’s finale.

At this point it looks like Meaghan and Natalie may have this whole thing sewn up. But, as evidenced in The Amazing Race franchise, one small slip can mean the difference between champs and chumps.

The Amazing Race Canada season finale airs Sunday at 9 p.m. ET on CTV followed by an After the Race special.