| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1251. L Sanz vs H van Riemsdijk |
| ½-½ | 37 | 2018 | Szmetan-Giardelli Open | E59 Nimzo-Indian, 4.e3, Main line |
| 1252. H van Riemsdijk vs L Silva |
| ½-½ | 37 | 2018 | Szmetan-Giardelli Open | B90 Sicilian, Najdorf |
| 1253. J T Falcon vs H van Riemsdijk |
| 1-0 | 23 | 2018 | Szmetan-Giardelli Open | E10 Queen's Pawn Game |
| 1254. H van Riemsdijk vs S J Curia |
| 0-1 | 19 | 2018 | Szmetan-Giardelli Open | C43 Petrov, Modern Attack |
| 1255. H van Riemsdijk vs B Sorensen |
| ½-½ | 45 | 2019 | Wch Seniors 65 29th | C16 French, Winawer |
| 1256. A Sorin vs H van Riemsdijk |
| ½-½ | 28 | 2019 | Szmetan-Giardelli ITT GM | D38 Queen's Gambit Declined, Ragozin Variation |
| 1257. H van Riemsdijk vs L Coro |
| ½-½ | 20 | 2019 | Szmetan-Giardelli ITT GM | E73 King's Indian |
| 1258. M J Tempone vs H van Riemsdijk |
| ½-½ | 24 | 2019 | Szmetan-Giardelli ITT GM | A15 English |
| 1259. H van Riemsdijk vs J J Romero Barreto |
| 0-1 | 70 | 2019 | Szmetan-Giardelli ITT GM | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 1260. M Villanueva vs H van Riemsdijk |
| ½-½ | 42 | 2019 | Szmetan-Giardelli ITT GM | C97 Ruy Lopez, Closed, Chigorin |
| 1261. H van Riemsdijk vs D Valerga |
| ½-½ | 17 | 2019 | Szmetan-Giardelli ITT GM | B81 Sicilian, Scheveningen, Keres Attack |
| 1262. S Iermito vs H van Riemsdijk |
| 1-0 | 40 | 2019 | Szmetan-Giardelli ITT GM | C77 Ruy Lopez |
| 1263. H van Riemsdijk vs A Rodriguez Vila |
| 1-0 | 54 | 2019 | Szmetan-Giardelli ITT GM | C18 French, Winawer |
| 1264. H Saldano Dayer vs H van Riemsdijk |
| ½-½ | 64 | 2019 | Szmetan-Giardelli ITT GM | A06 Reti Opening |
| 1265. H van Riemsdijk vs G Mahia |
| ½-½ | 52 | 2019 | Szmetan-Giardelli ITT GM | B15 Caro-Kann |
| 1266. J Sunye Neto vs H van Riemsdijk |
| 1-0 | 39 | 2019 | Szmetan-Giardelli ITT GM | A04 Reti Opening |
| 1267. H van Riemsdijk vs C Young |
| ½-½ | 47 | 2023 | 130th New Zealand Congress | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
| 1268. T Ha vs H van Riemsdijk |
| 0-1 | 57 | 2023 | 130th New Zealand Congress | E06 Catalan, Closed, 5.Nf3 |
| 1269. H van Riemsdijk vs J Langford |
| 1-0 | 54 | 2023 | 130th New Zealand Congress | B12 Caro-Kann Defense |
| 1270. S Shoker vs H van Riemsdijk |
| ½-½ | 30 | 2023 | 130th New Zealand Congress | A07 King's Indian Attack |
| 1271. H van Riemsdijk vs E Moradiabadi |
  | 0-1 | 36 | 2023 | 130th New Zealand Congress | B41 Sicilian, Kan |
| 1272. D J Zhu vs H van Riemsdijk |
| 0-1 | 48 | 2023 | 130th New Zealand Congress | A57 Benko Gambit |
| 1273. H van Riemsdijk vs L McLaren |
| ½-½ | 41 | 2023 | 130th New Zealand Congress | B32 Sicilian |
| 1274. N Braganza vs H van Riemsdijk |
| 0-1 | 49 | 2023 | 130th New Zealand Congress | A14 English |
| 1275. D Gong vs H van Riemsdijk |
| ½-½ | 8 | 2023 | 130th New Zealand Congress | B45 Sicilian, Taimanov |
Kibitzing
