Reilly Opelka (born August 28, 1997) is an American tennis player. He is listed at 6 feet 11 inches tall (Actually closer to 7 feet ) and is the tallest ATP-ranked player ever (Ivo Karlović is also listed at 6'11) and can serve in the low-140 mph range. He is a former Junior Wimbledon champion.
Opelka moved from Michigan to Palm Coast, Florida at age 4. He didn't start playing tennis regularly until he began training through USTA in Boca Raton at 13 years old. He credits Tom Gullikson, whom his father knew from playing golf, for much of his early development as a tennis player. Opelka is close friends with Taylor Fritz and was the best man at Fritz's wedding. His uncle is conservative radio personality Mike "Stunt Brain" Opelka.
Opelka made his ATP debut at the 2016 U.S. Men's Clay Court Championship, where he lost in the first round to fifth seed Sam Querrey. In August, Opelka won his first three career ATP matches at the BB&T Atlanta Open to reach the semi-finals at just his 3rd career ATP event. This included a victory over fellow 203 cm player No. 27 Kevin Anderson in which he saved two match points on Anderson's serve. He lost in the semi-finals to top seed John Isner. He continued his momentum with first round wins at the Los Cabos Open and the Cincinnati Masters where he defeated Sergiy Stakhovsky and Jérémy Chardy respectively to move into the Top 300 of the ATP rankings. After struggling with a foot injury towards the end of the summer, Opelka returned to the USTA Pro Circuit for the indoor season and won his first ATP Challenger title in Charlottesville to finish the year just outside the Top 200.
On the ATP world Tour, he reached the quarterfinals at the Delray Beach Open, picking up his first Top 10 win of his burgeoning career, defeating world No. 8 Jack Sock in the second round over three sets.
His solid performance at the ATP Challenger Tour earned him first career Top 100 year end finish in singles, ending the season at 99.
On February 17, 2019, Opelka won his first ever ATP tournament title. From 12-17 February, Opelka played the New York ATP tournament, which was won in 2018 by Kevin Anderson. Opelka (unseeded) won this tournament on 17, February 2019, defeating Brayden Schnur in the final 6-1, (7)6-7, 7-6(7). On the way to winning the title, Opelka defeated the following opponents: (1R) Adrian Mannarino 2-6, 7-6(5), 6-4, (R16) Denis Istomin (8)6-7, 7-6(6), 1-0, (QF) Guillermo Garcia-Lopez 6-3, 6-4, (SF) John Isner (top seed) (8)6-7, 7-6(14) 7-6(4). This was the second time that Opelka beat Isner in as many months to reach the final.