Mackenzie McDonald is an American professional tennis player known for his achievements on the ATP Tour, including a career-high singles ranking of No. 37 as of October 2023. This tag page features news, articles, and updates covering his collegiate success at UCLA, where he won both singles and doubles NCAA Division I Tennis Championships in 2016, his breakthrough performances in Grand Slam tournaments such as reaching the fourth round at Wimbledon in 2018, and his notable victories including a top 10 win over Juan Martín del Potro. The page provides comprehensive coverage of McDonald’s ongoing professional career and milestones.