Summer McIntosh set a new world record in the women’s 200-meter [1] butterfly during the Canadian trials in Montreal on Sunday.

The achievement is significant because it erases the oldest remaining women’s swimming world record in this event. The previous mark had stood since October 2009 [2], making it a long-term benchmark in the sport.

McIntosh clocked a time of two minutes, 1.65 seconds [2] to secure the record. The performance occurred during the national trials, where the athlete competed against top Canadian swimmers to solidify her position for upcoming international competition.

"It’s a dream come true," McIntosh said after the race [3].

The 200-meter [1] butterfly is one of the most grueling events in competitive swimming, requiring a combination of power, and endurance. By breaking a record that lasted more than 16 years, McIntosh has established a new standard for the discipline.

Officials and commentators said the swim was a historic victory for Canadian athletics. The event in Montreal served as the backdrop for a performance that shifted the global landscape of women's swimming.

"It’s a dream come true,"

The breaking of a record from 2009 signals a shift in the technical capabilities of modern swimmers. Because the previous record was established during the 'super-suit' era of 2009, McIntosh's time demonstrates that current training and athletic performance have finally surpassed the technological advantages of that period.