Koo Kien Keat
As of March 2014, following the resignation of his partner, Koo Kien Keat, which was due to their deteriorating performance, Tan was scratch partnered with several men's doubles players including Goh V Shem, Ow Yao Han, Hoon Thien How and Tan Wee Kiong. Following the tournament, Tan has been officially re-partnered with Hoon Thien How. In August that year, Koo returned to play his last tournament with Tan at the 2014 BWF World Championships. Their last match together was in the third round where they lost to a Chinese Taipei pair with a score of 19–21 in the deciding game.