Naoki Tsukahara Competition record Competition record

| Year_ | Competition | Venue | Position_ | Notes |
|---|---|---|---|---|
| 2003 | 58th National Sports Festival of Japan | Shizuoka , Japan | 7th | 100 m |
| 2004 | Japan Student Athletics Championships | Unknown, Japan | 6th | 200 m |
| 2004 | World Junior Championships | Grosseto , Italy | 3rd | 4x100 m relay |
| 2006 | Kanto Students Athletics Championships | Kantō , Japan | 2nd | 100 m |
| 2006 | Kanto Students Athletics Championships | Kantō , Japan | 2nd | 200 m |
| 2006 | Japan Association of Athletics Championships | Tokyo, Japan | 1st | 100 m |
| 2006 | Japan Association of Athletics Championships | Tokyo, Japan | 3rd | 200 m |
| 2006 | World Cup | Athens, Greece | 3rd | 4x100 m relay |
| 2006 | Asian Games | Doha , Qatar | 2nd | 100 m |