is a Japanese professional golfer.

Early life Yoneyama was born in Kanagawa Prefecture.

Professional career Yoneyama has won three tournaments on the Japan Golf Tour and featured in the top 100 of the Official World Golf Ranking. His most successful year was 1999 when he won three times and finished tied 15th in The Open Championship.

Professional wins (6) Japan Golf Tour wins (3) No.DateTournamentWinning scoreMargin ofvictoryRunner-up130 May 1999Mitsubishi Motors Tournament−16 (69-69-66-64=268)Playoff Kazuhiko Hosokawa229 Aug 1999Hisamitsu-KBC Augusta−11 (70-66-69=205)1 stroke Takao Nogami328 Nov 1999Casio World Open−14 (70-71-68-65=274)1 stroke Taichi Teshima

Japan Golf Tour playoff record (1–1) No.YearTournamentOpponent(s)Result11999Descente Classic Munsingwear Cup Kazuhiko Hosokawa, Masayuki KawamuraKawamura won with birdie on second extra hole21999Mitsubishi Motors Tournament Kazuhiko HosokawaWon with birdie on fifth extra hole

Japan PGA Senior Tour wins (3) No.DateTournamentWinning scoreMargin ofvictoryRunner(s)-up120 Aug 2017Fancl Classic−7 (69-73-67=209)Playoff Steven Conran, Kim Jong-duck, Kiyoshi Maita, Yoichi Shimizu225 Aug 2017Hiroshima Senior Golf Tournament−14 (69-73-67=128)3 strokes Katsumi Kubo37 Oct 2018Japan PGA Senior Championship Sumitomo Corporation Summit Cup−21 (69-66-66-66=267)4 strokes Toru Suzuki, Thaworn Wiratchant

Results in major championships Tournament19992000The Open ChampionshipT15T41 Note: Yoneyama only played in The Open Championship. "T" = tied

Team appearances Alfred Dunhill Cup (representing Japan): 1993, 1999

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