Tomoharu Otsuki
BY YEAR
| Bandar Malaysia Open | ASA | 10 | 2020 | T53 | - | 1 | - | 263rd |
| New Zealand Open presented by Sky Sport | ANZ,ASA | 9 | 2020 | MC | - | 1 | - | 254th |
| SMBC Singapore Open | ASA,JPN | 3 | 2020 | T11 | 3.12 | 1 | 3.12 | 237th |
| Hong Kong Open | ASA | 2 | 2020 | T7 | 2.93 | 1 | 2.93 | 251st |
| Thailand Masters | ASA | 51 | 2019 | MC | - | 0.9783 | - | 270th |
| BNI Indonesian Masters | ASA | 50 | 2019 | T60 | - | 0.9674 | - | 271st |
| Golf Nippon Series JT Cup | JPN | 49 | 2019 | T22 | - | 0.9565 | - | 271st |
| Casio World Open | JPN | 48 | 2019 | T23 | - | 0.9457 | - | 261st |
| Dunlop Phoenix | JPN | 47 | 2019 | T26 | 1.26 | 0.9348 | 1.18 | 256th |
| Mitsui Sumitomo VISA Taiheiyo Masters | JPN | 46 | 2019 | T45 | - | 0.9239 | - | 258th |
| HEIWA PGM Championship | JPN | 45 | 2019 | T67 | - | 0.913 | - | 253rd |
| Mynavi ABC Championship | JPN | 44 | 2019 | T51 | - | 0.9022 | - | 241st |
| The ZOZO Championship | USA | 43 | 2019 | T46 | 1.73 | 0.8913 | 1.54 | 230th |
| Japan Open Golf Championship | JPN | 42 | 2019 | T40 | - | 0.8804 | - | 234th |
| Bridgestone Open | JPN | 41 | 2019 | T2 | 6.16 | 0.8696 | 5.36 | 225th |
| Top Cup Tokai Classic | JPN | 40 | 2019 | T7 | 2.61 | 0.8587 | 2.24 | 276th |
| Panasonic Open Golf Championship | ASA,JPN | 39 | 2019 | T50 | - | 0.8478 | - | 298th |
| Shinhan Donghae Open | ASA,JPN,KOR | 38 | 2019 | T32 | - | 0.837 | - | 279th |
| ANA Open | JPN | 37 | 2019 | MC | - | 0.8261 | - | 268th |
| Yeangder TPC | ASA | 36 | 2019 | T21 | - | 0.8152 | - | 264th |
| Bank BRI Indonesia Open | ASA | 35 | 2019 | MC | - | 0.8043 | - | 261st |
| Shigeo Nagashima Invitational SEGASAMMY Cup | JPN | 34 | 2019 | T10 | 1.92 | 0.7935 | 1.52 | 250th |
| Sarawak Championship | ASA | 33 | 2019 | T24 | - | 0.7826 | - | 268th |
| Japan PGA Championship | JPN | 27 | 2019 | T43 | - | 0.7174 | - | 264th |
| Dunlop SRIXON Fukushima Open | JPN | 26 | 2019 | T7 | 2.43 | 0.7065 | 1.72 | 249th |
| Kolon the 62nd Korea Open | ASA,KOR | 25 | 2019 | MC | - | 0.6957 | - | 279th |
| KEB Hana Bank Invitational | KOR | 24 | 2019 | T50 | - | 0.6848 | - | 278th |
| JGTC Mori Building Cup Shishido Hills | JPN | 23 | 2019 | MC | - | 0.6739 | - | 274th |
| Gate Way To The Open Mizuno Open at The Royal GC | JPN | 22 | 2019 | T45 | - | 0.663 | - | 271st |
| Kansai Open Golf Championship | JPN | 21 | 2019 | 1 | 16.00 | 0.6522 | 10.44 | 270th |
| Asia-Pacific Open Golf Championship Diamond Cup Golf | ASA,JPN | 19 | 2019 | T49 | - | 0.6304 | - | 613rd |
| The Crowns | JPN | 18 | 2019 | T20 | - | 0.6196 | - | 601st |
| Token Homemate Cup | JPN | 16 | 2019 | T29 | - | 0.5978 | - | 584th |
| Bangabandhu Cup Golf Open | ASA | 14 | 2019 | T25 | - | 0.5761 | - | 574th |
| 100th New Zealand Open | ANZ,ASA | 9 | 2019 | T39 | - | 0.5217 | - | 549th |
| SMBC Singapore Open | ASA,JPN | 3 | 2019 | MC | - | 0.4565 | - | 521st |
| Casio World Open | JPN | 47 | 2018 | MC | - | 0.3696 | - | 531st |
| Dunlop Phoenix Tournament | JPN | 46 | 2018 | T44 | - | 0.3587 | - | 534th |
| Mitsui Sumitomo VISA Taiheiyo Masters | JPN | 45 | 2018 | MC | - | 0.3478 | - | 533rd |
| HEIWA PGM CHAMPIONSHIP | JPN | 44 | 2018 | T9 | 2.16 | 0.337 | 0.73 | 538th |
| Mynavi ABC Championship | JPN | 43 | 2018 | T10 | 1.92 | 0.3261 | 0.63 | 611st |
| Bridgestone Open | JPN | 42 | 2018 | T58 | - | 0.3152 | - | 704th |
| Japan Open Golf Championship | JPN | 41 | 2018 | T24 | 1.73 | 0.3043 | 0.53 | 702nd |
| Top Cup Tokai Classic | JPN | 39 | 2018 | T10 | 2.08 | 0.2826 | 0.59 | 798th |
| Asia-Pacific Diamond Cup Golf | ASA,JPN | 38 | 2018 | T21 | - | 0.2717 | - | 935th |
| ISPS Handa Match Play | JPN | 36 | 2018 | MC | - | 0.25 | - | 925th |
| Fujisankei Classic | JPN | 35 | 2018 | T48 | - | 0.2391 | - | 914th |
| RIZAP KBC Augusta | JPN | 34 | 2018 | T17 | 1.24 | 0.2283 | 0.28 | 911st |
| Shigeo Nagashima Invitational SEGA SAMMY Cup | JPN | 27 | 2018 | T55 | - | 0.1522 | - | 973rd |
| Dunlop SRIXON Fukushima Open | JPN | 25 | 2018 | T37 | - | 0.1304 | - | 951st |
| JGT Championship Mori Building Cup Shishido Hills | JPN | 22 | 2018 | MC | - | 0.0978 | - | 945th |
| Gate Way To The Open Mizuno Open at The Royal GC | JPN | 21 | 2018 | T34 | - | 0.087 | - | 926th |