The Olympic 500m champion gave a glimpse that she had the potential to better Yu Jing's mark, set 12 months ago, after skating to within five hundredths of a second of it on day one.
Lee clocked 36.99seconds to win maintain her 100 per-cent World Cup record in the 500m this season before smashing Yu's time of 36.94, recorded in Calgary, to pieces on day two.
The South Korean skater took 0.14 seconds off it, posting 36.80 to take victory again over American Heather Richardson but this time by well over a half a second instead of just over a tenth.
Richardson, who was to later win her second 1000m race in Canada, was 0.62 adrift in second with Margot Boer a further 0.12 back in third before Yu of China in fourth.
Lee now leads the overall World Cup standings for the 500m by 319 points and, with only four races left of the season, she will undoubtedly strip Yu of her title.
Richardson was also a comfortable winner in the 1000m for the second time in Calgary, her margin over recently crowned European allround champion Ireen Wust 0.59.
Teammate Brittany Bowe sealed a second third in the distance in Canada with Richardson extending her overall lead to 87 points with second-placed Erbanova fourth this time.
Jan Smeekens followed Lee and Richardson's leads by winning his second men's 500m race in Calgary to edge further away from Joji Kato of Japan in the overall standings.
The Dutch skater beat Kato by 0.05 for victory with teammate Michel Mulder third while Hein Otterspeer ensured the four skaters that won on Saturday didn't all win again a day later.
Otterspeer clocked 1:07.76minutes to deny Saturday's winner in the 1000m, Shani Davis, another victory and overtake compatriot Kjeld Nuis in the World Cup standings.
Two-time Olympic 1000m champion Davis was 0.07 behind Otterspeer and, with Nuis third, the Dutchman now has a five-point lead over his teammate with a total of 455.