- Born
- 1992-12-31 in Porto Alegre, Brazil, Brazil
- Hand
- Right
- Backhand
- 2 Hands
- Height
- 180 cm
- Weight
- 77 kg
- Turned Pro
- 2009
- Coach
- nan
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Guilherme Clezar
Guilherme ClezarGuilherme Clezar has found the Tour difficult, recording 1–14 across 15 matches (6.7%). The numbers point to a player still building their Tour presence — a key area of opportunity going forward.
At Grand Slam level (Australian Open, Roland Garros, Wimbledon, US Open): Guilherme Clezar has yet to record a win at Grand Slam level — 0–1 across 1 match. Breaking through here would mark a significant step forward.
By format — best-of-five: 0–3 (0.0%); best-of-three: 1–11 (8.3%). Markedly stronger in three-set formats; the win rate drops noticeably in five-setters, which has direct implications for Grand Slam performance.
| Date | Tournament | Srf | Rd | Wrk | Winner | Lrk | Loser | Score |
|---|---|---|---|---|---|---|---|---|
| 2018-04-06 | Davis Cup G1 R2: COL vs BRA | Hard | RR | 257 | 234 | 3-6 6-2 6-1 | ||
| 2018-02-26 | Sao Paulo | Clay | R16 | 22 | 225 | 6-3 6-4 | ||
| 2018-02-26 | Sao Paulo | Clay | R32 | 225 | 125 | 6-3 1-6 7-5 | ||
| 2017-09-15 | Davis Cup WG PO: JPN vs BRA | Hard | RR | 42 | 244 | 6-2 7-5 7-6(5) | ||
| 2017-02-27 | Sao Paulo | Clay | R32 | 166 | 273 | 6-2 6-3 | ||
| 2016-08-29 | US Open | Hard | R128 | 144 | 203 | 2-6 7-6(6) 6-2 6-4 | ||
| 2016-02-22 | Sao Paulo | Clay | R32 | 99 | 173 | 3-6 6-4 6-1 | ||
| 2015-04-06 | Houston | Clay | R32 | - | 186 | 6-4 3-6 7-6(7) | ||
| 2015-02-16 | Rio de Janeiro | Clay | R32 | 136 | 230 | 5-7 6-3 6-1 | ||
| 2015-02-09 | Sao Paulo | Clay | R32 | 61 | 223 | 7-5 7-5 |
