| 30 jun 2026 | Delgado Ramirez, Neuris 2511 | Van Riemsdijk, Herman C. 2237 | 1-0 | B45 Defensa Siciliana: Four Knights Variation | X Caioba STD | 37 | Ver |
| 27 jun 2026 | Van Riemsdijk, Herman C. 2291 | Acosta, Pablo Ismael 2463 | 0-1 | B41 Defensa Siciliana: Kan Variation | X Caioba RPD | 33 | Ver |
| 27 jun 2026 | Bachmann, Axel 2620 | Van Riemsdijk, Herman C. 2291 | 1-0 | A06 Apertura Zukertort | X Caioba RPD | 60 | Ver |
| 1 nov 2025 | Van Riemsdijk, Herman C. 2236 | Sieiro Gonzalez, Luis 2279 | ½-½ | D34 Defensa Tarrasch: Classical Variation | FIDE World Senior Championship 2025 | Open 65+ | 30 | Ver |
| 30 oct 2025 | Van Riemsdijk, Herman C. 2236 | Jaderberg, Bjorn 2068 | 1-0 | C10 Defensa Francesa: Rubinstein Variation, Blackburne Defense | FIDE World Senior Championship 2025 | Open 65+ | 39 | Ver |
| 29 oct 2025 | Campora, Daniel H. 2348 | Van Riemsdijk, Herman C. 2236 | 1-0 | A07 Ataque Indio de Rey: Double Fianchetto | FIDE World Senior Championship 2025 | Open 65+ | 34 | Ver |
| 28 oct 2025 | Van Riemsdijk, Herman C. 2236 | Mangubat, Mario 2003 | 1-0 | C17 Defensa Francesa: Winawer Variation, Retreat Variation | FIDE World Senior Championship 2025 | Open 65+ | 49 | Ver |
| 26 oct 2025 | Legky, Nikolay A 2325 | Van Riemsdijk, Herman C. 2236 | 1-0 | D01 Rapport-Jobava System | FIDE World Senior Championship 2025 | Open 65+ | 33 | Ver |
| 25 oct 2025 | Van Riemsdijk, Herman C. 2236 | Fayard, Alain 2073 | 1-0 | C91 Apertura Española (Ruy López): Closed, Bogoljubow Variation | FIDE World Senior Championship 2025 | Open 65+ | 29 | Ver |
| 24 oct 2025 | Sturua, Zurab 2491 | Van Riemsdijk, Herman C. 2236 | 1-0 | E56 Defensa Nimzoindia: Normal Variation, Gligoric System, Bernstein Defense | FIDE World Senior Championship 2025 | Open 65+ | 42 | Ver |
| 23 oct 2025 | Van Riemsdijk, Herman C. 2236 | Markzon, Gregory 2079 | 1-0 | B90 Defensa Siciliana: Najdorf Variation, Lipnitsky Attack | FIDE World Senior Championship 2025 | Open 65+ | 44 | Ver |
| 22 oct 2025 | Montero Martinez, Cristhian 2028 | Van Riemsdijk, Herman C. 2236 | 0-1 | C77 Apertura Española (Ruy López): Morphy Defense, Anderssen Variation | FIDE World Senior Championship 2025 | Open 65+ | 38 | Ver |