Introduction
Alexandre Sidorenko (born 18 February 1988) is a French tennis player. He has a career-high singles ranking of world no. 145, achieved in May 2009. His main achievement is to have won the Boys' Singles title at the 2006 Australian Open.
Career
Alexandre Sidorenko has only played in three major singles tournaments at the professional level and has lost on all three occasions. In 2005 he was defeated by Evgeny Korolev in the first round of the ATP tour Marseille Open. He lost in the first round of the 2007 French Open against Werner Eschauer as a wildcard, when he had to retire. In 2008, he lost to Younes El Aynaoui in the first round of the Munich Open in Germany.
He has regularly competed on the Challenger and Futures tour circuit. He has reached the final of four Futures tournaments, all in France; in two of these he was victorious (France F12 in September 2006 and France F8 in June 2006).
Singles Finals
| Legend (Singles) |
| Challengers (1) |
| Futures (6) |
Wins (3)
| No. | Date | Tournament | Surface | Opponent in the final | Score |
| 1. | June 25, 2006 | France F8 | Clay |  David Guez | 6–2, 6–7(4), 6–4 |
| 2. | September 10, 2006 | France F12 | Hard |  Sebastian Rieschick | 4–6, 6–3, 6–2 |
| 3. | April 13, 2008 | France F6 | Clay | Sébastien de Chaunac | 6–7(7), 6–2, 7–6(5) |
Runner-up (4)
| No. | Date | Tournament | Surface | Opponent in the final | Score |
| 1. | July 23, 2006 | France F11 | Clay |  Horacio Zeballos | 4–6, 1–6 |
| 2. | July 1, 2007 | France F9 | Clay |  David Marrero | 4–6, 2–6 |
| 3. | June 29, 2008 | Netherlands F3 | Clay | Alexander Flock | 2–6, 3–6 |
| 4. | September 28, 2008 | Grenoble | Hard |  Kristof Vliegen | 4–6, 3–6 |