Jessica Guilbault (Grimsby, ON) run at the 2019 OJCT U18 Championships came to an end in the semifinals with a 10-6 loss to Ontario's Paige Ballantyne. of the 2019 OJCT U18 Championships in Guelph, Ontario;
 
Guilbault finished 4-1 in the 0-team qualifying round. . In their opening game, Guilbault defeated Sophia Johnston (Toronto, ON) 8-3, then won 9-6 against Charlotte Johnston (London, ON). Guilbault went on to lose 5-4 against Dominique Vivier (Ottawa, ON). Guilbault responded with a 7-5 win over Calleigh Barton (Whitby, ON). Guilbault won 9-4 against Alex Bertolo (Coldwater, ON) in their final qualifying round match.
 
. For week 37 of the event schedule, Guilbault did not improve upon their best events, remaining at th place on the World Ranking Standings with total points. Guilbault ranks th overall on the Year-to-Date rankings with points earned so far this season.