| Guillermo Alcaide Justel | |
| Residence: | Sanxenxo, Spain |
| Birth Date: | 1986 5, df=y |
| Birth Place: | Madrid, Spain[1] |
| Turnedpro: | 2006 |
| Careerprizemoney: | $78,873 |
| Singlesrecord: | 0–1 |
| Singlestitles: | 0 |
| Highestsinglesranking: | No. 195 (1 November 2010) |
| Currentsinglesranking: | No. 220 (14 February 2011) |
| Australianopenresult: | Q1 (2011) |
| Frenchopenresult: | Q2 (2010) |
| Wimbledonresult: | 1R (2010) |
| Usopenresult: | Q2 (2010) |
| Doublestitles: | 0 |
| Highestdoublesranking: | No. 341 (19 April 2010) |
| Updated: | April 19, 2010 |
Guillermo Alcaide Justel (born 27 May 1986) [1] is a Spanish professional tennis player.
| width=35 | No. | width=85 | Date | width=220 | Tournament | width=50 | Surface | width=200 | Opponent in the final | width=140 | Score in the final |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 11.09.2006 | Spain F29, Spain | Clay |  Paul Baccanello | 6–3, 4–6, 4–6 | ||||||
| 2. | 16.04.2007 | Spain F14, Spain | Hard |  Pere Riba | 7–6(7–4), 6–3 | ||||||
| 3. | 04.06.2007 | Spain F21, Spain | Carpet | Robert Smeets | 4–6, 4–6 | ||||||
| 4. | 20.10.2008 | France F20, France | Hard |  James Ward | 4–6, 3–6 | ||||||
| 5. | 04.05.2009 | Great Britain F6, Great Britain | Clay | Andoni Vivanco-Guzmán | 6–1, 6–7(5–7), 7–6(7–5) | ||||||
| 6. | 25.05.2009 | Italy F12, Italy | Clay |  Rainer Eitzinger | 6–2, 6–4 | ||||||
| 7. | 28.12.2009 | Brazil F34, Brazil | Clay |  Júlio Silva | 6–4, 6–2 | ||||||
| 8. | 15.02.2010 | Egypt F3, Egypt | Clay |  Karim Maamoun | 5–7, 3–6 | ||||||
| 9. | 08.03.2010 | Portugal F2, Portugal | Hard |  Benoît Paire | 6–4, 4–6, 6–3 |