| # | Discipline | Competition | Date |
|---|---|---|---|
| 23 | Boulder | IFSC World Championships Seoul 2025 Seoul, KOR | 2025-09-28 |
| 34 | Lead | IFSC World Cup Innsbruck 2025 Innsbruck, AUT | 2025-06-29 |
| 22 | Boulder | IFSC World Cup Salt Lake City 2025 Salt Lake City, USA | 2025-05-26 |
| 19 | Boulder | IFSC World Cup Curitiba 2025 Curitiba, BRA | 2025-05-19 |
| 21 | Lead | IFSC World Cup Bali 2025 Bali, INA | 2025-05-04 |
| 35 | Lead | IFSC World Cup Wujiang 2025 Wujiang, CHN | 2025-04-27 |
| 9 | Boulder | IFSC World Cup Keqiao 2025 Keqiao, CHN | 2025-04-20 |
| 12 | Boulder | FISU University Championships Koper 2024 Koper | 2024-09-12 |
| 🥈 | Lead | IFSC Asian Cup Riyadh 2023 Riyadh | 2023-12-16 |
| 🥈 | Boulder | IFSC Asian Cup Riyadh 2023 Riyadh | 2023-12-16 |
| 🥉 | Boulder | IFSC Asia - Continental Youth Championships (B, S, L, B&L) - Chongqing (CHN) 2023 Chongqing | 2023-10-22 |
| 🥈 | Lead | IFSC Asia - Continental Youth Championships (B, S, L, B&L) - Chongqing (CHN) 2023 Chongqing | 2023-10-22 |
| 🥈 | Boulder & Lead | IFSC Asia - Continental Youth Championships (B, S, L, B&L) - Chongqing (CHN) 2023 Chongqing | 2023-10-22 |
| 7 | Lead | IFSC Youth World Championships Seoul 2023 South Korea | 2023-08-27 |
| 13 | Boulder | IFSC Youth World Championships Seoul 2023 South Korea | 2023-08-27 |
| 21 | Boulder | IFSC World Cup Hachioji 2023 Hachioji | 2023-04-23 |
| 🥈 | Boulder | IFSC Asia - Continental Cup (B) - Manila (PHI) 2022 Manila | 2022-11-06 |
| 13 | Boulder | IFSC - Climbing Youth World Championships (B,S,L) - Dallas (USA) 2022 United States | 2022-09-01 |
| 19 | Lead | IFSC - Climbing Youth World Championships (B,S,L) - Dallas (USA) 2022 United States | 2022-09-01 |
| Born | 2004-12-31 (21) |
| Nationality |  Japan |
| Federation | Japan Mountaineering & Sport Climbing Association |
Career podiums
| Lead | 🥇0 🥈2 🥉0 (2 total) |
| Boulder | 🥇0 🥈2 🥉1 (3 total) |
World Cup ranking over time
Boulder Leadlower = better
No recent updates for Mashiro KUZUU yet.
🪨 No outdoor sends recorded yet for Mashiro KUZUU.