The Astros' first victory in the matchup, and first victory in the World Series since winning the deciding Game 7 against the Los Angeles Dodgers in 2017, came after the Nationals won the first two games at Houston. Game 4 is Saturday night in Washington. Osaka hopes format familiarity brings better result at WTA Finals Twelve months on from her debut appearance at the WTA Finals, two-time grand slam winner Naomi Osaka is hoping to put the lessons learned into practice as she looks for an improved performance in the end-of-season tournament.