Martin Wostenholme (born October 11, 1962 in Toronto, Ontario, Canada) is a Canadian former professional tennis player. He reached a career-high ATP singles ranking of No. 84 on November 11, 1985 and a career-high ATP doubles ranking of No. 312 on September 9, 1985.
Wostenholme was from 1981 to 1984 a four-time All-Ivy Leaguer in singles at Yale University. He had his best results on clay; a semifinal appearance at the Guarujá, Brazil Grand Prix event in 1988 and 1991; a quarterfinal showing at the Stuttgart Outdoor Grand Prix event in 1989; and a semifinal at the Rio de Janeiro Grand Prix event in 1990. Wostenholme was the first Canadian to win a match at each of the four Grand Slam events, reaching the second rounds of the 1985 US Open, the 1986 French Open and Wimbledon, and the 1990 Australian Open. He was named Tennis Canada male player of the year in 1984. He retired in 1992 and was inducted into the Canadian Tennis Hall of Fame in 2003.
ATP Challenger Tour finals
Singles: 4 (1 title, 3 runners-up)
Titles by surface
Hard (0–0)
Clay (1–3)
Grass (0–0)
Carpet (0–0)
Result
W–L
Date
Tournament
Tier
Surface
Opponent
Score
Win
1–0
Sep 1985
West Palm, United States
$25,000
Clay
Jaime Yzaga (PER)
6–2, 1–6, 6–4
Loss
1–1
Feb 1989
São Paulo, Brazil
$25,000
Clay (i)
Stefan Lochbihler (AUT)
3–6, 5–7
Loss
1–2
May 1989
Raleigh, United States
$25,000
Clay
Jimmy Brown (USA)
4–6, 6–2, 4–6
Loss
1–3
Jul 1991
Porto, Portugal
$100,000
Clay
Bart Wuyts (BEL)
3–6, 5–7
Singles performance timeline
Tournament
1985
1986
1987
1988
1989
1990
1991
1992
SR
W–L
Win %
Grand Slam tournaments
Australian Open
A
NH
A
A
A
2R
A
A
0 / 1
1–1
50%
French Open
A
2R
A
A
A
1R
A
A
0 / 2
1–2
33%
Wimbledon
A
2R
A
A
A
1R
Q1
Q2
0 / 2
1–2
33%
US Open
2R
A
A
A
A
A
A
Q1
0 / 1
1–1
50%
Win–Loss
1–1
2–2
0–0
0–0
0–0
1–3
0–0
0–0
0 / 6
4–6
40%
Wins over top-10 opponents
Wostenholme has a 1–7 (13%) record against players who were, at the time the match was played, ranked in the top 10.