[1] Saeki was born in Okayama Prefecture, and in 2005 he won the boys' singles bronze at the Asian Junior Championships.

[1] In 2013, he won the men's doubles title at the Austrian International Challenge tournament, and at the same year, he won the men's doubles bronze at the 2013 East Asian Games.

[2] Saeki plays for the Unisys team for seven year, and in March 2017, he announced his retirement.

[3] Men's doubles Boys' singles The BWF World Tour, announced on 19 March 2017 and implemented in 2018,[4] is a series of elite badminton tournaments, sanctioned by Badminton World Federation (BWF).

This biographical article relating to Japanese badminton is a stub.