In 2008, after losing the final of the MarrakechChallenger in May to eventual French Open semifinalistGael Monfils, Chardy produced his best Grand Slam showing so far in his professional career at the French Open, where he entered as a wild card, and came back in the second round from being led two-sets-to-love by ATP No. 6 David Nalbandian to defeat him 3–6, 4–6, 6–2, 6–1, 6–2. He continued his run beating thirtieth seed Dmitry Tursunov 7–6(1), 6–3, 6–4, before losing in the fourth round to nineteenth seed Nicolas Almagro 7–6(0) 7–6(7), 7–5, after holding set points in each of the three sets.