2024 Keio Challenger – Men's singles
| Men's singles | |
|---|---|
| 2024 Keio Challenger | |
| Champion | Yuta Shimizu |
| Runner-up | Li Tu |
| Score | 6–7(4–7), 6–4, 6–2 |
Yosuke Watanuki was the defending champion but chose not to defend his title.
Yuta Shimizu won the title after defeating Li Tu 6–7(4–7), 6–4, 6–2 in the final.