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Mixed doubles champion at the 2013 World Championships: Tontowi Ahmad Tontowi Ahmad, an Indonesian badminton player, emerged victorious in the mixed doubles event at the 2013 Badminton World Championships. Partnering with Liliyana Natsir, they showcased their exceptional skills and teamwork, overcoming formidable opponents to claim the coveted title. This triumph marked a significant achievement in Ahmad's career, solidifying his status as one of the world's leading mixed doubles players.