Mikumu Horikawa
BY YEAR
| Bandar Malaysia Open | ASA | 10 | 2020 | T38 | - | 1 | - | 151st |
| New Zealand Open presented by Sky Sport | ANZ,ASA | 9 | 2020 | T18 | 1.20 | 1 | 1.2 | 147th |
| SMBC Singapore Open | ASA,JPN | 3 | 2020 | T18 | 1.82 | 1 | 1.82 | 134th |
| Sony Open in Hawaii | USA | 2 | 2020 | 65 | - | 0.9891 | - | 134th |
| Australian PGA Championship | ANZ,EUR | 51 | 2019 | T44 | - | 0.9565 | - | 133rd |
| Golf Nippon Series JT Cup | JPN | 49 | 2019 | T8 | 2.66 | 0.9348 | 2.49 | 135th |
| Casio World Open | JPN | 48 | 2019 | T58 | - | 0.9239 | - | 139th |
| Dunlop Phoenix | JPN | 47 | 2019 | T26 | 1.26 | 0.913 | 1.15 | 139th |
| Mitsui Sumitomo VISA Taiheiyo Masters | JPN | 46 | 2019 | 4 | 4.80 | 0.9022 | 4.33 | 138th |
| HEIWA PGM Championship | JPN | 45 | 2019 | MC | - | 0.8913 | - | 147th |
| WGC - HSBC Champions | WGC | 44 | 2019 | T49 | 1.47 | 0.8804 | 1.29 | 145th |
| The ZOZO Championship | USA | 43 | 2019 | T72 | - | 0.8696 | - | 144th |
| Japan Open Golf Championship | JPN | 42 | 2019 | T2 | 16.00 | 0.8587 | 13.74 | 144th |
| Bridgestone Open | JPN | 41 | 2019 | T41 | - | 0.8478 | - | 200th |
| Top Cup Tokai Classic | JPN | 40 | 2019 | T10 | 2.16 | 0.837 | 1.81 | 195th |
| Panasonic Open Golf Championship | ASA,JPN | 39 | 2019 | MC | - | 0.8261 | - | 204th |
| Shinhan Donghae Open | ASA,JPN,KOR | 38 | 2019 | T18 | - | 0.8152 | - | 199th |
| ANA Open | JPN | 37 | 2019 | T38 | - | 0.8043 | - | 198th |
| Fujisankei Classic | JPN | 36 | 2019 | T28 | - | 0.7935 | - | 194th |
| RIZAP KBC Augusta | JPN | 35 | 2019 | MC | - | 0.7826 | - | 192nd |
| Shigeo Nagashima Invitational SEGASAMMY Cup | JPN | 34 | 2019 | T6 | 2.88 | 0.7717 | 2.22 | 185th |
| Sarawak Championship | ASA | 33 | 2019 | MC | - | 0.7609 | - | 195th |
| WGC - FedEx St Jude Invitational | WGC | 30 | 2019 | T58 | 1.21 | 0.7283 | 0.88 | 197th |
| 148th Open Championship | MAJ | 29 | 2019 | MC | - | 0.7174 | - | 201st |
| Japan PGA Championship | JPN | 27 | 2019 | T19 | 1.20 | 0.6957 | 0.83 | 193rd |
| Dunlop SRIXON Fukushima Open | JPN | 26 | 2019 | T22 | - | 0.6848 | - | 196th |
| U.S. Open | MAJ | 24 | 2019 | MC | - | 0.663 | - | 185th |
| JGTC Mori Building Cup Shishido Hills | JPN | 23 | 2019 | 1 | 16.00 | 0.6522 | 10.44 | 182nd |
| Gate Way To The Open Mizuno Open at The Royal GC | JPN | 22 | 2019 | T22 | - | 0.6413 | - | 269th |
| Kansai Open Golf Championship | JPN | 21 | 2019 | T25 | - | 0.6304 | - | 267th |
| Asia-Pacific Open Golf Championship Diamond Cup Golf | ASA,JPN | 19 | 2019 | MC | - | 0.6087 | - | 262nd |
| The Crowns | JPN | 18 | 2019 | T20 | - | 0.5978 | - | 251st |
| Token Homemate Cup | JPN | 16 | 2019 | MC | - | 0.5761 | - | 241st |
| Bangabandhu Cup Golf Open | ASA | 14 | 2019 | T10 | 1.89 | 0.5543 | 1.05 | 244th |
| 100th New Zealand Open | ANZ,ASA | 9 | 2019 | MC | - | 0.5 | - | 236th |
| SMBC Singapore Open | ASA,JPN | 3 | 2019 | MC | - | 0.4348 | - | 219th |
| Golf Nippon Series JT Cup 2018 | JPN | 48 | 2018 | T5 | 3.51 | 0.3587 | 1.26 | 209th |
| Casio World Open | JPN | 47 | 2018 | T13 | 1.63 | 0.3478 | 0.57 | 229th |
| Dunlop Phoenix Tournament | JPN | 46 | 2018 | 2 | 18.00 | 0.337 | 6.07 | 241st |
| Mitsui Sumitomo VISA Taiheiyo Masters | JPN | 45 | 2018 | T40 | - | 0.3261 | - | 500th |
| HEIWA PGM CHAMPIONSHIP | JPN | 44 | 2018 | T46 | - | 0.3152 | - | 499th |
| Mynavi ABC Championship | JPN | 43 | 2018 | T48 | - | 0.3043 | - | 493rd |
| Bridgestone Open | JPN | 42 | 2018 | T4 | 3.95 | 0.2935 | 1.16 | 485th |
| Japan Open Golf Championship | JPN | 41 | 2018 | MC | - | 0.2826 | - | 596th |
| Top Cup Tokai Classic | JPN | 39 | 2018 | 63 | - | 0.2609 | - | 586th |
| Asia-Pacific Diamond Cup Golf | ASA,JPN | 38 | 2018 | T37 | - | 0.25 | - | 575th |
| ISPS Handa Match Play | JPN | 36 | 2018 | T17 | 1.23 | 0.2283 | 0.28 | 595th |
| Fujisankei Classic | JPN | 35 | 2018 | MC | - | 0.2174 | - | 590th |
| RIZAP KBC Augusta | JPN | 34 | 2018 | T11 | 1.72 | 0.2065 | 0.36 | 582nd |
| Shigeo Nagashima Invitational SEGA SAMMY Cup | JPN | 27 | 2018 | MC | - | 0.1304 | - | 596th |
| Dunlop SRIXON Fukushima Open | JPN | 25 | 2018 | T12 | 1.76 | 0.1087 | 0.19 | 593rd |
| JGT Championship Mori Building Cup Shishido Hills | JPN | 22 | 2018 | T38 | - | 0.0761 | - | 618th |