| Katsumasa Miyamoto 宮本勝昌 | |
| Birth Date: | 28 August 1972 |
| Birth Place: | Shizuoka Prefecture, Japan |
| Weight: | 76kg (168lb) |
| Yearpro: | 1995 |
| Tour: | Japan Golf Tour Japan PGA Senior Tour |
| Prowins: | 16 |
| Japwins: | 12 |
| Otherwins: | 4 |
| Masters: | DNP |
| Usopen: | DNP |
| Open: | CUT: 2010 |
| Pga: | DNP |
Katsumasa Miyamoto (Japanese: 宮本勝昌, born 28 August 1972) is a Japanese professional golfer.
Miyamoto was born in Shizuoka Prefecture. After turning professional, he joined the Japan Golf Tour, where he has won 12 times. He won his first title in 1998, adding another later that year. He added two more wins in 2001 and 2014 and one win in 2003, 2007, 2008, 2010, 2017 and 2019.
| Legend | |
|---|---|
| Japan majors (4) | |
| Other Japan Golf Tour (8) |
| No. | Date | Tournament | Winning score | Margin of victory | Runner(s)-up | |
|---|---|---|---|---|---|---|
| 1 | 19 Apr 1998 | Tsuruya Open | −17 (69-65-69-68=271) | 1 stroke |  Peter McWhinney | |
| 2 | 6 Dec 1998 | Golf Nippon Series JT Cup | −5 (64-67-75-69=275) | Playoff |  Masashi Ozaki | |
| 3 | 1 Jul 2001 | Japan Golf Tour Championship iiyama Cup | −15 (69-67-68-69=273) | 7 strokes |  Eduardo Herrera,  Jeev Milkha Singh | |
| 4 | 2 Dec 2001 | Golf Nippon Series JT Cup (2) | −12 (72-64-66-66=268) | 1 stroke | Toshimitsu Izawa, Tsuneyuki Nakajima | |
| 5 | 27 Jul 2003 | Sato Foods NST Niigata Open | −17 (65-71-69-66=271) | 1 stroke |  Gregory Meyer | |
| 6 | 26 Aug 2007 | KBC Augusta | −15 (64-64-70-71=269) | 1 stroke | Steven Conran, Koumei Oda | |
| 7 | 20 Apr 2008 | Token Homemate Cup | −8 (71-66-73-66=276) | 1 stroke | Taichi Teshima | |
| 8 | 6 Jun 2010 | Japan Golf Tour Championship Citibank Cup Shishido Hills (2) | −5 (69-67-68-75=279) | 3 strokes | Hiroyuki Fujita | |
| 9 | 21 Sep 2014 | ANA Open | −18 (68-67-68-67=270) | Playoff | Hideto Tanihara | |
| 10 | 7 Dec 2014 | Golf Nippon Series JT Cup (3) | −9 (68-67-71-65=271) | 1 stroke |  Prayad Marksaeng | |
| 11 | 30 Jul 2017 | Dunlop Srixon Fukushima Open | −22 (66-68-69-63=266) | 1 stroke |  Hur In-hoi | |
| 12 | 5 May 2019 | The Crowns | −9 (66-69-67-69=271) | 1 stroke | Shugo Imahira |
Japan Golf Tour playoff record (2–3)
| No. | Year | Tournament | Opponent(s) | Result | |
|---|---|---|---|---|---|
| 1 | 1998 | Golf Nippon Series JT Cup | Masashi Ozaki | Won with birdie on fourth extra hole | |
| 2 | 2003 | Aiful Cup | Taichi Teshima | Lost to birdie on first extra hole | |
| 3 | 2003 | Acom International | Masahiro Kuramoto, Masashi Ozaki | Kuramoto won with birdie on first extra hole | |
| 4 | 2014 | ANA Open | Hideto Tanihara | Won with par on first extra hole | |
| 5 | 2017 | Panasonic Open Golf Championship | Kenichi Kuboya | Lost after concession on first extra hole |
| Tournament | 2010 | |
|---|---|---|
| Match Play | ||
| Championship | ||
| Invitational | T33 | |
| Champions | T34 |
Amateur
Professional