Yu Igarashi
Yu Igarashi is a Japanese badminton player. He won his first international title at the 2017 Osaka International tournament.
Achievements
Summer Universiade
Men's singles| Year | Venue | Opponent | Score | Result |
| 2017 | Taipei Gymnasium, Taipei, Taiwan |  Wang Tzu-wei | 21–23, 21–23 | Bronze |
BWF World Tour (1 runner-up)
The BWF World Tour, announced on 19 March 2017 and implemented in 2018, is a series of elite badminton tournaments, sanctioned by Badminton World Federation. The BWF World Tour are divided into six levels, namely World Tour Finals, Super 1000, Super 750, Super 500, Super 300, and the BWF Tour Super 100.Men's singles
| Year | Tournament | Level | Opponent | Score | Result |
| 2019 | Akita Masters | Super 100 |  Firman Abdul Kholik | 18–21, 20–22 | Runner-up |
BWF Grand Prix (1 runner-up)
The BWF Grand Prix has two levels, the BWF Grand Prix and Grand Prix Gold. It is a series of badminton tournaments sanctioned by the Badminton World Federation since 2007.Men's singles
| Year | Tournament | Opponent | Score | Result |
| 2017 | Dutch Open |  Kento Momota | 10–21, 12–21 | Runner-up |
BWF International Challenge/Series (4 titles, 1 runner-up)
Men's singles| Year | Tournament | Opponent | Score | Result |
| 2018 | South Australia International |  Loh Kean Yew | 21–19, 22–24, 21–11 | Winner |
| 2018 | Osaka International | Kodai Naraoka | 14–21, 21–11, 21–12 | Winner |
| 2017 | Spanish International |  Luís Enrique Peñalver | 21–13, 21–14 | Winner |
| 2017 | Finnish Open |  Rasmus Gemke | 17–21, 18–21 | Runner-up |
| 2017 | Osaka International |  Hsueh Hsuan-yi | 25–23, 21–14 | Winner |