Alena Ostapenko and Shu-Wei Hse could not reach the final of the WTA 1000 doubles tournament in Toronto. On Tuesday, the fifth-seeded duo lost in the semifinals to Italy's Sara Errani and America's Nicole Melichar-Martinez, who were the third seeds. The match was ambiguous. Ostapenko and Hse lost the first set 1-6, then managed to turn the tide of the match by winning the second set 6-4. The fate of the final spot was decided in the championship tiebreak, where their opponents proved stronger, winning 10-8. Despite the loss, reaching the semifinals earned Ostapenko 390 WTA ranking points in doubles. Throughout the tournament, the Latvian-Taiwanese duo confidently progressed through three rounds. In their opening match, Ostapenko and Hse defeated Maria Sakkari and Donna Vekic, then won against Ulrikke Eikeri and Quinn Gleeson, and in the quarterfinals, they were stronger than Ann Li and Clara Tauson. For Ostapenko, the tournament in Toronto was challenging in singles as well. Freed from first-round matches, she could not finish her second-round encounter against China's Zhang Shuai, retiring at 0-6, 0-4. Thus, the Latvian tennis player's performance at the tournament in Toronto has come to an end. The next important stage of the season will be preparing for the start of the US Open.