Kodai Ichihara
BY YEAR
| HEIWA PGM Championship | JPN | 45 | 2019 | MC | - | 1 | - | 271st |
| Mynavi ABC Championship | JPN | 44 | 2019 | MC | - | 1 | - | 267th |
| Japan Open Golf Championship | JPN | 42 | 2019 | T18 | 2.32 | 1 | 2.32 | 263rd |
| Bridgestone Open | JPN | 41 | 2019 | T34 | - | 1 | - | 279th |
| Top Cup Tokai Classic | JPN | 40 | 2019 | T56 | - | 1 | - | 275th |
| Panasonic Open Golf Championship | ASA,JPN | 39 | 2019 | T70 | - | 1 | - | 266th |
| Shinhan Donghae Open | ASA,JPN,KOR | 38 | 2019 | MC | - | 1 | - | 257th |
| ANA Open | JPN | 37 | 2019 | MC | - | 1 | - | 249th |
| Fujisankei Classic | JPN | 36 | 2019 | T10 | 1.92 | 1 | 1.92 | 240th |
| RIZAP KBC Augusta | JPN | 35 | 2019 | MC | - | 1 | - | 252nd |
| Shigeo Nagashima Invitational SEGASAMMY Cup | JPN | 34 | 2019 | T36 | - | 1 | - | 239th |
| WGC - FedEx St Jude Invitational | WGC | 30 | 2019 | T55 | 1.40 | 0.9674 | 1.35 | 224th |
| Japan PGA Championship | JPN | 27 | 2019 | MC | - | 0.9348 | - | 219th |
| Dunlop SRIXON Fukushima Open | JPN | 26 | 2019 | T29 | - | 0.9239 | - | 213rd |
| U.S. Open | MAJ | 24 | 2019 | MC | - | 0.9022 | - | 202nd |
| JGTC Mori Building Cup Shishido Hills | JPN | 23 | 2019 | T16 | 1.32 | 0.8913 | 1.18 | 197th |
| Gate Way To The Open Mizuno Open at The Royal GC | JPN | 22 | 2019 | MC | - | 0.8804 | - | 198th |
| Kansai Open Golf Championship | JPN | 21 | 2019 | T36 | - | 0.8696 | - | 193rd |
| Asia-Pacific Open Golf Championship Diamond Cup Golf | ASA,JPN | 19 | 2019 | MC | - | 0.8478 | - | 190th |
| Volvo China Open | ASA,EUR | 18 | 2019 | MC | - | 0.837 | - | 185th |
| Token Homemate Cup | JPN | 16 | 2019 | MC | - | 0.8152 | - | 182nd |
| 100th New Zealand Open | ANZ,ASA | 9 | 2019 | T8 | 2.25 | 0.7391 | 1.66 | 167th |
| SMBC Singapore Open | ASA,JPN | 3 | 2019 | MC | - | 0.6739 | - | 167th |
| Golf Nippon Series JT Cup 2018 | JPN | 48 | 2018 | T24 | - | 0.5978 | - | 171st |
| Casio World Open | JPN | 47 | 2018 | T24 | - | 0.587 | - | 169th |
| Dunlop Phoenix Tournament | JPN | 46 | 2018 | 1 | 30.00 | 0.5761 | 17.28 | 168th |
| Mitsui Sumitomo VISA Taiheiyo Masters | JPN | 45 | 2018 | MC | - | 0.5652 | - | 425th |
| HEIWA PGM CHAMPIONSHIP | JPN | 44 | 2018 | T46 | - | 0.5543 | - | 421st |
| Mynavi ABC Championship | JPN | 43 | 2018 | T34 | - | 0.5435 | - | 415th |
| Bridgestone Open | JPN | 42 | 2018 | T49 | - | 0.5326 | - | 412nd |
| Japan Open Golf Championship | JPN | 41 | 2018 | MC | - | 0.5217 | - | 407th |
| Top Cup Tokai Classic | JPN | 39 | 2018 | T30 | - | 0.5 | - | 395th |
| Asia-Pacific Diamond Cup Golf | ASA,JPN | 38 | 2018 | MC | - | 0.4891 | - | 387th |
| Fujisankei Classic | JPN | 35 | 2018 | T32 | - | 0.4565 | - | 382nd |
| RIZAP KBC Augusta | JPN | 34 | 2018 | T17 | 1.24 | 0.4457 | 0.55 | 374th |
| WGC - Bridgestone Invitational | WGC | 31 | 2018 | T69 | - | 0.413 | - | 376th |
| 147th Open Championship | MAJ | 29 | 2018 | MC | - | 0.3913 | - | 374th |
| Shigeo Nagashima Invitational SEGA SAMMY Cup | JPN | 27 | 2018 | MC | - | 0.3696 | - | 365th |
| Dunlop SRIXON Fukushima Open | JPN | 25 | 2018 | T15 | 1.31 | 0.3478 | 0.46 | 373rd |
| JGT Championship Mori Building Cup Shishido Hills | JPN | 22 | 2018 | 1 | 16.00 | 0.3152 | 5.04 | 387th |
| Gate Way To The Open Mizuno Open at The Royal GC | JPN | 21 | 2018 | MC | - | 0.3043 | - | 849th |
| Kansai Open Golf Championship | JPN | 20 | 2018 | T10 | 1.92 | 0.2935 | 0.56 | 834th |
| Japan PGA Championship | JPN | 19 | 2018 | MC | - | 0.2826 | - | 929th |
| Panasonic Open Championship | ASA,JPN | 16 | 2018 | T28 | - | 0.25 | - | 871st |
| Token Homemate Cup | JPN | 15 | 2018 | T18 | 1.22 | 0.2391 | 0.29 | 846th |
| ISPS HANDA New Zealand Open | ANZ,ASA | 9 | 2018 | MC | - | 0.1739 | - | 838th |
| Leopalace21 Myanmar Open | ASA,JPN | 4 | 2018 | MC | - | 0.1196 | - | 770th |
| Casio World Open | JPN | 47 | 2017 | MC | - | 0.0217 | - | 739th |
| Dunlop Phoenix Tournament | JPN | 46 | 2017 | MC | - | 0.0109 | - | 726th |