Juniors

Joyce and then-friend Erik Menéndez^[2] entered the 1989 Boys' Junior National Tennis Championship,^[3] not two weeks before Erik and his brother Lyle murdered their parents. Joyce beat Ian Williams in the 1st round of the Boys' 18 singles but lost to Jonathan Stark in the quarterfinals. He reached the finals of the Wimbledon Boys' event in 1991, losing to Thomas Enqvist.

Professional tennis player

On the professional tour, he won 3 Challenger events and reached the 4th round of the 1995 Wimbledon Championships. He won the men's singles in the Ojai Tennis Tournament in 2004.^[4] Pat Rafter, Yevgeny Kafelnikov, Jim Courier, and Michael Chang were among those Joyce beat.^[5] He was 46–67 overall, going 1–10 against top 10 players.^[6]

He was the subject of an essay by David Foster Wallace in Esquire;^[1] the essay was later republished in Wallace's collections A Supposedly Fun Thing I'll Never Do Again and String Theory.

Coach

Joyce was the coach of Maria Sharapova, along with her father, Yuri Sharapov, from summer 2004 until January 2011, when he was replaced by Thomas Högstedt. During his tenure, Sharapova won three Grand Slam singles titles and reached the World No. 1 ranking.^[7]

Joyce coached American tennis player Jessica Pegula from 2012 to 2017. While with Joyce, in 2013 before suffering from an injury, Pegula reached a career high singles world ranking of 123 and a doubles world ranking of 92.

In 2017, Joyce coached former world number one Victoria Azarenka for 8 months after she returned to competition following maternity leave. However, with family issues interrupting her schedule, the pair split at the end of the year,^[8] and Joyce took up the position of coach to Johanna Konta.^[9] In October 2018, Joyce split ways with Konta and began coaching Eugenie Bouchard.^[10] In April 2019, Joyce split ways with Bouchard;^[11] two months later he started to work with Tímea Babos.^[12] In 2021, Joyce joined USTA Player Development as a women's tennis national coach.^[13]

Personal life

Joyce currently lives in Boca Raton, Florida, with his wife Jenna and their daughter (born May 2016).

Singles: 10 (6–4)

More information Result, W–L ...

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Win	1–0	Apr 1994	Puerto Vallarta, Mexico	Challenger	Hard	Leonardo Lavalle	6–1, 7–6
Loss	1–1	Sep 1994	Seoul, South Korea	Challenger	Hard	David Nainkin	7–6, 3–6, 5–7
Loss	1–2	Nov 1994	Glendale, United States	Challenger	Hard	Christian Ruud	1–6, 3–6
Win	2–2	Dec 1994	[São Luís, Brazil	Challenger	Hard	Roger Smith	6–3, 6–7, 7–6
Win	3–2	Dec 1998	USA F10, Phoenix	Futures	Hard	Thomas Blake	6–4, 6–4
Win	4–2	Mar 2000	[Hamilton, New Zealand	Challenger	Hard	Gouichi Motomura	4–6, 6–4, 6–4
Loss	4–3	Sep 2001	Tarzana, United States	Challenger	Hard	Levar Harper-Griffith	6–7(6–8), 3–6
Win	5–3	Nov 2002	USA F27, Hammond	Futures	Hard	Tripp Phillips	7–6(10–8), 7–6(7–1)
Win	6–3	Feb 2003	Great Britain F4, Redbridge	Futures	Hard	Stefano Pescosolido	6–4, 3–6, 6–2
Loss	6–4	Mar 2003	USA F6, Mobile	Futures	Hard	Peter Clarke	6–7(6–8), 4–6

Close

Doubles: 11 (4–7)

More information Result, W–L ...

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	0–1	Jan 1997	Singapore, Singapore	Challenger	Hard	Scott Melville	Mahesh Bhupathi Leander Paes	4–6, 6–4, 6–7
Loss	0–2	Jul 1997	Flushing Meadows, United States	Challenger	Hard	David Witt	Geoff Grant Mark Merklein	1–6, 4–6
Loss	0–3	Oct 1999	Japan F6, Fukuoka	Futures	Carpet	Kyle Spencer	Tasuku Iwami Ryuso Tsujino	6–4, 6–7, 4–6
Loss	0–4	Nov 1999	Yokohama, Japan	Challenger	Carpet	Kyle Spencer	Satoshi Iwabuchi Thomas Shimada	2–6, 4–6
Loss	0–5	Mar 2000	[Hamilton, New Zealand	Challenger	Hard	Jim Thomas	Neville Godwin Michael Hill	6–7(4–7), 4–6
Win	1–5	Jul 2000	USA F17, Chico	Futures	Hard	Luke Smith	Zack Fleishman Robert Kendrick	7–6(7–3), 6–7(3–7), 6–1
Win	2–5	Sep 2001	Tarzana, United States	Challenger	Hard	Zack Fleishman	Kyle Spencer Glenn Weiner	6–1, 5–7, 7–6(8–6)
Win	3–5	Jul 2002	Granby, Canada	Challenger	Hard	Noam Behr	Thomas Dupre Simon Larose	6–0, 6–3
Loss	3–6	Aug 2002	Belo Horizonte, Brazil	Challenger	Hard	Denis Golovanov	Daniel Melo Marcelo Melo	3–6, 4–6
Loss	3–7	Aug 2002	Gramado, Brazil	Challenger	Hard	Denis Golovanov	Alessandro Guevara Dejan Petrovic	6–3, 5–7, 2–6
Win	4–7	Mar 2003	USA F6, Mobile	Futures	Hard	Kevin Kim	Josh Goffi Travis Parrott	6–7(0–7), 6–3, 7–5

Close

Singles: 1 (1 runner-up)

More information Result, Year ...

Result	Year	Tournament	Surface	Opponent	Score
Loss	1991	Wimbledon	Grass	Thomas Enqvist	4–6, 2–6

Close

Singles

Doubles