 One theory of his decline in performance during this time is that he was devastated and never recovered from his 0–3 loss to Kim Taek-Yong (Bisu) in the GOM TV Season 1 MSL finals on 3 March 2007; and then later, in November 2007, he lost to Bisu again in the quarterfinals of the 2007 Ever OSL 1–2.Ma Jae-yoon was ranked 5th in the March 2008 KeSPA ranking with 1,540.5 points, he was behind Lee Jae-Dong (Jaedong) (2,400.3), Kim Taek-Yong (Bisu) (2,302.6), Song Byung-Goo (Stork) (2,219.6), and Lee Young-Ho (Flash) (1,747.5).His career hit a new low when he failed to make it past the first round in the 2008 EVER OSL.