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Siemen de Haan's career best to date is 422.5 kg, set in 2025 at age 61. Their total grew 45 kg over 0.6 years between their first meet and that mark (~81.0 kg/year). Career variance was 97% squat-driven.
Career-best meet: Masters NK Powerliften · KNKF-SP
| Date | Meet | Equipment | Squat (kg) | Bench (kg) | Deadlift (kg) | Total (kg) | DOTS |
|---|---|---|---|---|---|---|---|
| 2024-03-30 | SBD Paascup | Raw | — | 87.5 | 182.5 | — | — |
| 2024-11-30 | Lichtstad Cup | Raw | 100 | 87.5 | 190 | 377.5 | 244.75 |
| 2025-06-21 | Masters NK Powerliften | Raw | 140 | 92.5 | 190 | 422.5 | 277.32 |
| 2026-02-28 | Northside Barbell Cup | Raw | 137.5 | 95 | 185 | 417.5 | 284.69 |
vs Raw · 83 kg class · masters-3 · Netherlands · drug-tested
vs Raw · 83 kg class · masters-3 · drug-tested
vs Raw · 93 kg class · masters-3 · drug-tested