Mackenzie Mcdonald

Mackenzie McDonald Bio

Michael Mackenzie Lowe McDonald, known on tour as Mackenzie McDonald, is an American professional tennis player born on April 16, 1995, in Piedmont, California. A right-handed player with a two-handed backhand, McDonald turned professional in 2016 after a decorated college career at the University of California, Los Angeles (UCLA). He has built his career on consistent baseline play, tactical variety, and a strong return game that has produced notable upsets on the ATP Tour.

McDonald reached a career-high singles ranking of world No. 37 on October 16, 2023, and a career-high doubles ranking of No. 49 on October 2, 2023. He is also a former NCAA Division I national champion in both singles and doubles. Residing in Lake Nona, Orlando, Florida, he continues to compete on the ATP Tour and represents the United States in team events such as the Davis Cup.

Early Life and Background

McDonald was born and raised in Piedmont, California, a small city in the San Francisco Bay Area known for producing competitive athletes. Growing up in the Bay Area gave him access to a thriving junior tennis scene and a strong base of coaches and training partners. From an early age, McDonald showed promise in the sport, and his family supported his development through regional and national competitions.

He quickly rose through the junior ranks, reaching a career-high ITF World Tour Junior Ranking of No. 12 in 2012. That same year, he reached the semifinals of the boys’ singles draw at the Australian Open and won the 18s singles title at the Easter Bowl. In 2013, while still a junior, he won the men’s singles title at the historic amateur Ojai Tennis Tournament, signaling his readiness for higher-level competition.

McDonald was widely regarded as the top incoming college player in the country when he enrolled at UCLA. He earned a degree from the university, balancing academics with a demanding tennis schedule. His time at UCLA became the foundation for his transition to the professional tour.

Path to Tennis

McDonald’s path to the professional game began with a remarkable achievement at age 18. In 2013, he qualified for the Western & Southern Open in Cincinnati, a Masters 1000 event, by defeating two top-100 players despite never having earned an ATP point. That made him the first unranked teenager to qualify for an ATP World Tour Masters 1000 tournament since Sergio Casal at the 1995 Miami Masters. The performance earned him a wildcard into the 2013 US Open qualifying draw.

At UCLA, McDonald compiled a strong freshman season, recording a 33-9 overall mark, an 18-4 dual-match record, and earning Singles All-American honors along with Pac-12 Freshman of the Year recognition. He continued to develop in 2015 and 2016, playing No. 1 singles and doubles for the Bruins. In 2016, he won the NCAA Division I singles championship by defeating top-ranked Mikael Torpegaard of Ohio State, becoming the 12th UCLA player to claim the title.

He then partnered with Martin Redlicki to win the NCAA doubles championship, becoming the first college player to take both national titles since Matias Boeker of Georgia in 2001. Days after the tournament, on June 16, 2016, McDonald announced that he would forgo his senior year and turn professional, marking the official start of his ATP Tour career.

Mackenzie McDonald Career

Early Career (2013-2016)

McDonald’s earliest professional appearances were marked by encouraging results on the Challenger and Futures circuits. In 2014, he qualified for the main draw of a Challenger event in Winnetka, Illinois, and earned a win over world No. 154 Sam Groth. By late 2016, after turning pro, he received a wildcard into the US Open main draw, where he pushed Czech qualifier Jan Satral to five sets in the first round.

He also won his first ITF Pro Circuit title at the USA F29 Irvine Futures and added back-to-back semifinals at the Tiburon and Stockton Challengers, taking down three top-150 players along the way. These early results established McDonald as a rising American talent ready to test himself against more experienced opponents.

ATP Tour Breakthrough (2017-2018)

In 2017, McDonald opened the season by winning the singles title at the Los Angeles Pro Futures, capping the run by winning the last eleven games of the final. He also received the Oracle US Tennis Award, an honor given to exceptional collegiate players transitioning to the professional game. Later that year, he added a fifth career Futures doubles title.

The 2018 season marked McDonald’s true breakthrough. After qualifying for the Australian Open and reaching the second round, he found his best Grand Slam result at Wimbledon. He defeated Nicolas Jarry in five sets to record his first five-set match win, then beat Guido Pella in straight sets to reach the second week of a major for the first time. He was stopped in the round of 16 by Milos Raonic in four sets, but the result pushed him into the top 100 for the first time.

Top 100 Era (2019-2021)

McDonald opened 2019 with his first ATP-level semifinal at the Delray Beach Open, highlighted by a first career top-10 win over Juan Martin del Potro. He followed that with a quarterfinal at the ATP 500 event in Acapulco, climbing to a then career-high ranking of No. 62 in March 2019. His season was cut short by a serious hamstring injury suffered at the French Open, which forced him out of competition for the rest of the year and dropped him out of the top 100.

He returned in 2020 under the guidance of new coach Jaime Pulgar Garcia and gradually rebuilt his form. In 2021, he reached the fourth round of the Australian Open with an upset of 22nd-seeded Borna Coric before falling to Daniil Medvedev. Later that summer at the Citi Open in Washington, D.C., McDonald reached his first ATP final, defeating Nick Kyrgios, Denis Kudla, and Kei Nishikori before losing to Jannik Sinner. The run vaulted him back into the top 100, and he finished 2021 ranked No. 55.

Career Highs Era (2022-2023)

McDonald made his top-50 debut in February 2022 at world No. 49 and continued to climb throughout the year. He reached doubles milestones as well, winning his maiden ATP doubles title at the Rakuten Japan Open Tennis Championships with Marcelo Melo. By late 2022, he had reached a career-high doubles ranking of No. 96.

The 2023 season brought his biggest singles breakthroughs. He reached the third round of the Australian Open with a five-set win over Brandon Nakashima and an upset of the injured Rafael Nadal. At the National Bank Open in Toronto, McDonald reached his first Masters 1000 quarterfinal by upsetting sixth-seeded Andrey Rublev and wildcard Milos Raonic. Those results pushed him to a career-high No. 37 in October 2023. He also recorded his 100th career ATP win at the Rolex Paris Masters over J. J. Wolf and represented the United States in the Davis Cup.

Driving Style and Strengths

McDonald is best known for his steady baseline game, his ability to redirect pace with a two-handed backhand, and his composure in long rallies. His return of serve is one of his biggest weapons, allowing him to challenge much higher-ranked opponents on faster surfaces. Under the long-term guidance of his coaching team, he has built a tactical style that emphasizes court coverage, patience, and well-timed aggression in crucial moments.

Notable Events and Milestones

Some of McDonald’s most memorable career moments include his first top-10 win over Juan Martin del Potro in Delray Beach, his run to the Washington final in 2021, and his first Masters 1000 quarterfinal at the 2023 National Bank Open. He is also the first college player since 2001 to sweep both the NCAA Division I singles and doubles titles in the same year.

Mackenzie McDonald Career Wins

McDonald has accumulated wins across every level of professional tennis, from ITF Futures titles to deep runs at ATP Masters 1000 events. While he has not yet captured an ATP singles title, his career totals include victories over multiple top-20 opponents, an ATP doubles title, and a combined six ITF singles and seven ITF doubles titles at the lower professional levels.

ATP Tour and Grand Slam Highlights

McDonald’s signature Grand Slam result remains his fourth-round appearance at Wimbledon in 2018, where he defeated Nicolas Jarry and Guido Pella before falling to Milos Raonic. He matched that result at the 2021 Australian Open with another fourth-round showing, highlighted by his upset of Borna Coric. He also reached the third round of the 2022 French Open and 2023 Australian Open, the latter including a memorable win over the injured Rafael Nadal.

His biggest Masters 1000 result came at the 2023 National Bank Open, where he reached the quarterfinals. In doubles, McDonald lifted his maiden ATP trophy at the 2022 Rakuten Japan Open Tennis Championships, partnering with Marcelo Melo to defeat Rafael Matos and David Vega Hernandez in the final.

Other Wins and Performances

Beyond his ATP-level results, McDonald has built a strong resume on the Challenger and ITF circuits, with 6 ITF singles titles and 7 ITF doubles titles, along with 5 Challenger singles titles. He has been a reliable performer for the United States in Davis Cup competition and reached the Davis Cup quarterfinals in 2024.

Mackenzie McDonald Family

Family Background and Racing Lineage

McDonald is of Chinese, Scottish, and English descent. The nickname Mackie has followed him throughout his life and is used regularly by fans and peers on the ATP Tour. His multicultural family background has been a point of pride for the American, who has spoken about representing his heritage on the global tennis stage.

Personal Life

McDonald currently resides in Lake Nona, Orlando, Florida, a popular base for many professional tennis players due to its training facilities and year-round playing conditions. In April 2025, he became engaged to fellow professional tennis player Maria Mateas. The couple share a deep connection through the sport and have been seen supporting each other at tournaments around the world.

2025 Season Performance

McDonald’s 2025 season has been focused on consistency, injury management, and rebuilding his ranking following a challenging stretch. Working closely with his coaching team, he has entered a mix of ATP Tour events, Challengers, and Grand Slams in an effort to climb back toward the top 50 in singles. His experience on faster indoor and hard courts has been a key factor in his scheduling decisions.

He has continued to compete actively on the ATP Tour, including a Wimbledon doubles second-round appearance in 2024, and has remained a fixture in Davis Cup discussions for the United States. His ability to win matches at multiple levels has kept him competitive against younger rising stars and established veterans alike.

Looking ahead, McDonald’s outlook for the rest of 2025 centers on finding his best form in the North American summer hard-court swing and carrying momentum into the Asian swing and indoor season. With his tactical game, fitness, and the support of his coaching staff, he remains focused on recapturing his career-high ranking and pushing deeper into the second week of Grand Slams. His engagement to Mateas has also provided a strong personal foundation as he continues his career on the ATP Tour.