Thailand's Tamarine Tanasugarn staged a superb fightback to reach the fourth round for the seventh time in her career with a 4-6, 6-4, 6-4 win over New Zealand's Marina Erakovic. The 31-year-old, ranked 60 and who hadn't been to a Grand Slam last 16 since Wimbledon 2004, now has the chance to make it to the quarter-final of a major for the first time if she can beat Serbian second seed Jelena Jankovic. Tamarine has enjoyed more success at Wimbledon than any other Grand Slam, and this year is no different. She shocked Vera Zvonareva, the Russian 13th seed, in the last round and her extra experience on grass eventually told against 20-year-old Erakovic. "It's a good feeling to be in the second week of Wimbledon ," Tamarine said. "It was a tight match and, for a while my concentration was on another planet somewhere, so it was really good that I hung in there. "It's not easy when you don't play that well and your concentration isn't there. She was serving well and at the end either of us could have won, but my focus came back at the right time." Tamarine , who won the WTA Tour grasscourt event at 'S-Hertogenbosch last week after coming through qualifying, got the perfect start when she broke in Erakovic's first service game and raced into a 4-1 lead. But Erakovic gradually clawed her way into a 5-4 lead and easily closed out the set with a thudding forehand. Tamarine broke for a 3-1 lead in the second set. Yet again she couldn't hold on and Erakovic responded with a break of her own. This time though Tamarine had the bit between her teeth. She redoubled her efforts, earned a set point at 5-4 and took it with a clinched fist to send the match to a final set. The decider was a tense affair that came to a head when Tamarine took her second match-point for a gutsy win.