The Brampton, Ont. native set the previous record of 6.62 metres just over a year ago, but improved her mark to 6.99 metres to far surpass last year's achievement.
Nettey finished well ahead of her competition to come in first in the event.
The 23-year-old's record-setting jump also eclipsed Tabia Charles' Canadian outdoor record mark of 6.82 metres set Jun. 7, 2008.