After competing in Formula Dream in 2004 and 2005, winning the championship in his second year, Tsukakoshi moved into the All-Japan Formula Three Championship for the final three rounds of the 2005 season, finishing fourteenth in the standings competing for M-TEC.

Another fifth place championship finish followed in 2007, as Tsukakoshi took two wins for Honda Team Real at Okayama and Suzuka.

He competed with the team, and he managed to close to win the title, just lose out to Kazuki Nakajima by three points.

[4] He then moves to new team Drago Corse to cover for Tatiana Calderon who unable to enter Japan due to visa issues.

[citation needed] Tsukakoshi thn picked by the series to develop the new Dallara-built SF23 chassis as the test driver of Honda representative.