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Naoya Miyamoto's career best to date is 505 kg, set in 2024 at age 55. Their total grew 20 kg over 1.8 years between their first meet and that mark (~10.9 kg/year). 23.3-year gap in their competition record between 1998 and 2021. Career variance was 99% squat-driven.
Career-best meet: 78th National Sports Festival · JPA
| Date | Meet | Equipment | Squat (kg) | Bench (kg) | Deadlift (kg) | Total (kg) | DOTS |
|---|---|---|---|---|---|---|---|
| 2021-07-23 | 26th Japan Classic Masters Powerlifting Championships | Raw | 180 | 120 | — | — | — |
| 2022-11-05 | 1st Japan Grand Prix | Raw | 180 | 100 | 205 | 485 | 418.98 |
| 2023-07-16 | 28th Japan Classic Masters Powerlifting Championships | Raw | 170 | 107.5 | 195 | 472.5 | 406.71 |
| 2023-10-28 | 2nd Japan Grand Prix | Raw | — | 110 | 200 | — | — |
| 2024-07-13 | 29th Japan Classic Masters Powerlifting Championships | Raw | 180 | 115 | 195 | 490 | 420.87 |
| 2024-09-06 | 78th National Sports Festival | Raw | 190 | 115 | 200 | 505 | 433.14 |
| 2024-11-02 | 3rd Japan Grand Prix | Raw | — | 110 | 200 | — | — |
| 2024-11-02 | 41st All Japan Corporate Powerlifting Championships | Raw | — | 110 | 200 | — | — |
| 2025-07-06 | Asian/Pacific/African Classic & Equipped Championships | Raw | 170 | 115 | 195 | 480 | 410.82 |
| 2025-07-19 | 30th Japan Classic Masters Powerlifting Championships | Raw | 170 | 115 | 207.5 | 492.5 | 423.02 |
vs Raw · 59 kg class · masters-2 · Japan · drug-tested
vs Raw · 59 kg class · masters-2 · drug-tested