He reached the finals in boys" singles at the 2015 French Open and lost to fellow American Tommy Paul in three sets. He avenged the loss by defeating Paul in the boys" singles final at the 2015 United States Open. In 2015, Fritz reached at least the quarterfinal of all 4 junior grand slam tournaments, including the final at the French Open where he lost to Tommy Paul and the final at the United States. Open where he defeated Paul.
He is the first American to hold this title since Donald Young in 2005 and Andy Roddick in 2000.
2015: Challenger Tour success
In September 2015, Fritz turned pro after winning the Junior United States. Open. 2016: Surge into Top 100
After losing in the final of his last tournament of 2015, Fritz reached a final again in his first tournament of 2016, this time winning against Top 100 player Dudi Sela at Happy Valley to catapult to a ranking in the 150s.
In the following week, he made it through Australian Open Qualifying to reach his first main draw of a Grand Slam tournament, where he would lose in the 1st round to fellow American Jack Sock in five sets. Fritz was awarded a wild card into his first Association of Tennis Professionals 250 tournament of 2016 at Memphis and knocked off the 2nd-seeded Steve Johnson, who at Number.
29 is the highest ranked player Fritz had ever defeated.
With his victory over Ricardas Berankis in the semi-final, he became the youngest American to reach an Association of Tennis Professionals final since Michael Chang in 1989, and also the 2nd-fastest American ever to reach an Association of Tennis Professionals final, doing so in just his 3rd career Association of Tennis Professionals tournament. John Isner is the only American that was able to reach an Association of Tennis Professionals final faster. In February, Fritz cracked the Top 100 for the first time by reaching the quarter-finals in Acapulco at his first career Association of Tennis Professionals 500 event.
Current through the 2016 Miami Open.