| Personal information | |||
|---|---|---|---|
| Date of birth | 22 November 1997 | ||
| Height | 1.72 m (5 ft 8 in) | ||
| Position(s) | Winger | ||
| Team information | |||
Current team | Shimizu S-Pulse | ||
| Number | 19 | ||
| Youth career | |||
| Kawagoe Himawari SC | |||
| –2015 | Omiya Ardija | ||
| College career | |||
| Years | Team | Apps | (Gls) |
| 2016–2019 | Toyo University | ||
| Senior career* | |||
| Years | Team | Apps | (Gls) |
| 2020–2022 | Mito HollyHock | 74 | (9) |
| 2022–2023 | Urawa Red Diamonds | 14 | (1) |
| 2023 | → Vegalta Sendai (loan) | 11 | (0) |
| 2024– | Shimizu S-Pulse | 14 | (2) |
| *Club domestic league appearances and goals, correct as of 21:44, 27 April 2024 (UTC) | |||
Kai Matsuzaki (松崎 快, Matsuzaki Kai, born 22 November 1997) is a Japanese professional footballer currently playing as a winger for J2 League club Shimizu S-Pulse.