# 2022 Kobe Challenger – Singles

Yosuke Watanuki was the defending champion and successfully defended his title, defeating Frederico Ferreira Silva 6–7$^{(3–7)}$, 7–5, 6–4 in the final.

## Seeds

* Christopher O'Connell (semifinals)
* John Millman (quarterfinals)
* Rinky Hijikata (second round)
* Kaichi Uchida (first round)
* James Duckworth (first round)
* Damir Džumhur (second round)
* Yosuke Watanuki (champion)
* Li Tu (first round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 1 | Christopher O'Connell | 4 | 6$^6$ | | | | | | |
| 7 | Yosuke Watanuki | 6 | 7$^8$ | | | | | | |
| 7 | Yosuke Watanuki | 6 | 7$^8$ | | 7 | Yosuke Watanuki | 6$^3$ | 7 | 6 |
| | | | | | | Frederico Ferreira Silva | 7$^7$ | 5 | 4 |
| | Frederico Ferreira Silva | 6 | 3 | 6 | | Frederico Ferreira Silva | 7$^7$ | 5 | 4 |
| | Nino Serdarušić | 4 | 6 | 3 | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | C O'Connell | 6$^7$ | 7$^{12}$ | 7$^7$ | | | | | | | | | | | | | |
| Q | C Sinclair | 7$^9$ | 6$^{10}$ | 6$^3$ | 1 | C O'Connell | 6 | 6$^5$ | 6 | | | | | | | | |
| PR | Y Sugita | 6 | 4 | 4 | | B Zhukayev | 2 | 7$^7$ | 1 | | | | | | | | |
| | B Zhukayev | 4 | 6 | 6 | | | | | | 1 | C O'Connell | 7 | 7$^7$ | | | | |
| | Z Kolář | 6 | 2 | | | | | | | Q | M Polmans | 5 | 6$^3$ | | | | |
| PR | T Ito | 3 | 0$^r$ | | | Z Kolář | 1 | 4 | | | | | | | | | |
| Q | M Polmans | 6$^3$ | 6 | 6 | Q | M Polmans | 6 | 6 | | | | | | | | | |
| 8 | L Tu | 7$^7$ | 2 | 3 | | | | | | | | | | 1 | C O'Connell | 4 | 6$^6$ |
| 4 | K Uchida | 4 | 6 | 3 | | | | | | | | | | 7 | Yo Watanuki | 6 | 7$^8$ |
| | R Ramanathan | 6 | 4 | 6 | | R Ramanathan | 2 | 6 | 4 | | | | | | | | |
| Q | J Jung | 3 | 6 | 6 | Q | J Jung | 6 | 0 | 0$^r$ | | | | | | | | |
| | R Noguchi | 6 | 4 | 1 | | | | | | | R Ramanathan | 5 | 1 | | | | |
| | S Shimabukuro | 5 | | | | | | | | 7 | Yo Watanuki | 7 | 6 | | | | |
| | Y Uchiyama | 1$^r$ | | | | S Shimabukuro | 4 | 2 | | | | | | | | | |
| Q | Y-s Chung | 2 | 2 | | 7 | Yo Watanuki | 6 | 6 | | | | | | | | | |
| 7 | Yo Watanuki | 6 | 6 | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | J Duckworth | 4 | 4 | | | | | | | | | | | | | | | |
| WC | S Hazawa | 6 | 6 | | WC | S Hazawa | 6 | 6 | | | | | | | | | | |
| Q | S Mochizuki | 4 | 2 | | Q | N Nakagawa | 4 | 4 | | | | | | | | | | |
| Q | N Nakagawa | 6 | 6 | | | | | | | WC | S Hazawa | 6 | 3 | 6$^4$ | | | | |
| | NH Lý | 2 | 4 | | | | | | | | F Ferreira Silva | 2 | 6 | 7$^7$ | | | | |
| | F Ferreira Silva | 6 | 6 | | | F Ferreira Silva | 6 | 6 | | | | | | | | | | |
| | D Sweeny | 3 | 6 | 2 | 3 | R Hijikata | 4 | 2 | | | | | | | | | | |
| 3 | R Hijikata | 6 | 1 | 6 | | | | | | | | | | | F Ferreira Silva | 6 | 3 | 6 |
| 6 | D Džumhur | 6 | 6 | | | | | | | | | | | | N Serdarušić | 4 | 6 | 3 |
| WC | T Ichikawa | 4 | 3 | | 6 | D Džumhur | 6 | 1 | 3 | | | | | | | | | |
| | N Serdarušić | 6 | 6$^7$ | 6 | | N Serdarušić | 4 | 6 | 6 | | | | | | | | | |
| | ND Ionel | 3 | 7$^9$ | 2 | | | | | | | N Serdarušić | 7$^7$ | 7 | | | | | |
| WC | Shintaro Imai | 6 | 6 | | | | | | | 2 | J Millman | 6$^2$ | 5 | | | | | |
| | H Moriya | 4 | 3 | | WC | S Imai | 1 | 4 | | | | | | | | | | |
| | FC Jianu | 3 | 6 | 4 | 2 | J Millman | 6 | 6 | | | | | | | | | | |
| 2 | J Millman | 6 | 3 | 6 | | | | | | | | | | | | | | |