Kōki Idoki

Kōki Idoki (井戸木鴻樹) is a Japanese professional golfer who has played his whole career on the Japan Golf Tour.

Idoki, while playing on the Japan Golf Tour, had two victories: the 1990 Kansai Pro Championship and the 1993 NST Niigata Open.

In his first time playing professionally in the United States, he won the 2013 Senior PGA Championship.

Japan PGA Senior Tour wins (4)

 * 2012 Fuji Film Senior Championship
 * 2021 ISPS Handa Tanoshiku Omoshiroi Senior Tournament, Komatsu Open, Trust Group Cup Sasebo Senior Open Golf Tournament

Results in major championships
CUT = missed the halfway cut Note: Idoki only played in the PGA Championship.

Senior results timeline
Results are not in chronological order prior to 2017.

{{legend|lime|Win}}

{{legend|#eeeeee|Did not play}} CUT = missed the halfway cut "T" indicates a tie for a place.