Elena Rybakina defeated Naomi Osaka 4–6, 7–6, 6–4 in the quarter-final of the Toronto Masters 1000 on hard court on 12 August 2026, overcoming pre-match odds that favoured her opponent. Despite losing the opening set, Rybakina recovered to force a second-set tie-break, which she won before securing the third set to advance. The result represents a significant scalp for Rybakina, who upset the betting markets to progress to the semi-final stage of the Canadian event.