Behind her, Reusser was beginning to close. The defending champion recovered virtually her entire early deficit over the next 11 kilometres, reaching the second checkpoint just two seconds behind Bäckstedt. By the third split, the momentum had swung decisively. Reusser moved 13 seconds ahead and continued to pull away over the closing kilometres.
Her dominance became even clearer when she caught Demi Vollering on the road despite starting 90 seconds behind the Dutchwoman. By the finish, a contest that had been finely balanced halfway through the 39.2-kilometre course had become a comprehensive second consecutive world title for Reusser.
Reusser wins the world title for the second straight year
Bäckstedt holds on for silver as Koch takes bronze
Bäckstedt still had plenty to celebrate after one of the strongest rides of her young career. The 22-year-old had carried an advantage over Koch throughout the middle section of the course and arrived at the finish only five seconds quicker than the German after fading slightly on the uphill run towards the line. That was enough for silver once Reusser came through, giving Bäckstedt her first elite World Championship time trial medal.
Koch’s bronze was built on an exceptionally well-paced ride. The German had traded tiny margins with Cédrine Kerbaol through the opening checkpoints before gradually taking control of their battle. Her 51:09 finishing time became the first genuine medal-level benchmark of the afternoon and ultimately survived for third place.
Longo Borghini came desperately close to dislodging her. The Italian produced a strong finish of her own but crossed the line only 4.76 seconds slower than Koch, leaving her fourth. Kerbaol completed the top five, 1:10 behind Reusser.
Kopecky climbs through the standings as Vollering fades
Lotte Kopecky recovered strongly from a relatively steady opening and continued to gain places as the race developed. The Belgian was outside the immediate medal picture at the first checkpoint but improved through each subsequent split, eventually finishing seventh at 1:49.54. She was separated by less than half a second from Demi Vollering, who took eighth after never recovering from a slow start.
Vollering had already lost 34 seconds to Bäckstedt at the opening checkpoint and remained well away from the medal fight thereafter. Antonia Niedermaier finished sixth, just over a second ahead of Kopecky, while Dominika Włodarczyk and Vittoria Guazzini completed the top ten.
Earlier in the afternoon, Włodarczyk, Lotte Claes and Taylor Knibb had each helped lower the benchmark before the major contenders arrived. Claes briefly occupied the hotseat during an impressive first World Championship time trial, but the complexion of the race changed once Koch, Bäckstedt and finally Reusser came through.
One expected contender never started. Norway’s Katrine Aalerud, fifth in the event last year, withdrew after suffering a small elbow fracture in a crash during Saturday’s course reconnaissance.
By the time Reusser reached the final climb into Montréal, though, there was little uncertainty left. After conceding time early, the Swiss rider progressively dismantled the challenge ahead of her and crossed the line with a 40-second cushion to retain the rainbow jersey on her birthday.