| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 276. O Adu vs A Diamant |
| 0-1 | 50 | 2017 | PRO Chess League (Central) | A07 King's Indian Attack |
| 277. M Makaj vs A Diamant |
| 1-0 | 34 | 2017 | PRO Chess League (Central) | E61 King's Indian |
| 278. G Guseinov vs A Diamant |
| 1-0 | 30 | 2017 | PRO League Group Stage | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 279. B Moon vs A Diamant |
| 0-1 | 60 | 2017 | PRO League Group Stage | A45 Queen's Pawn Game |
| 280. A Diamant vs R Francisco |
| 1-0 | 36 | 2017 | PRO League Group Stage | C78 Ruy Lopez |
| 281. A Diamant vs D Gurevich |
 | 1-0 | 42 | 2017 | PRO League Group Stage | B10 Caro-Kann |
| 282. S Maroroa vs A Diamant |
| 0-1 | 39 | 2018 | Pro Chess League | B30 Sicilian |
| 283. G Jones vs A Diamant |
| 1-0 | 37 | 2018 | Pro Chess League | B30 Sicilian |
| 284. A Diamant vs R Yanchenko |
| 1-0 | 135 | 2018 | Pro Chess League | C09 French, Tarrasch, Open Variation, Main line |
| 285. A Diamant vs T Rendle |
| 1-0 | 38 | 2018 | Pro Chess League | C00 French Defense |
| 286. A Diamant vs K Holm |
| ½-½ | 32 | 2019 | PRO League Group Stage | C65 Ruy Lopez, Berlin Defense |
| 287. J L Hammer vs A Diamant |
| 1-0 | 44 | 2019 | PRO League Group Stage | A37 English, Symmetrical |
| 288. A Diamant vs S Mihajlov |
| 1-0 | 33 | 2019 | PRO League Group Stage | C90 Ruy Lopez, Closed |
| 289. L O Hauge vs A Diamant |
| 1-0 | 44 | 2019 | PRO League Group Stage | A45 Queen's Pawn Game |
| 290. M I Macedo vs A Diamant |
| ½-½ | 63 | 2020 | Brazilian Championship 2019 | A01 Nimzovich-Larsen Attack |
| 291. A Diamant vs M I Macedo |
| 1-0 | 29 | 2020 | Brazilian Championship 2019 | A13 English |
| 292. D Lima vs A Diamant |
| ½-½ | 49 | 2020 | Brazilian Championship 2019 | D40 Queen's Gambit Declined, Semi-Tarrasch |
| 293. D Lima vs A Diamant |
| 0-1 | 61 | 2020 | Brazilian Championship 2019 | D40 Queen's Gambit Declined, Semi-Tarrasch |
| 294. A Diamant vs D Lima |
| ½-½ | 49 | 2020 | Brazilian Championship 2019 | E17 Queen's Indian |
| 295. A Diamant vs D Lima |
| ½-½ | 78 | 2020 | Brazilian Championship 2019 | A28 English |
| 296. A Fier vs A Diamant |
| ½-½ | 55 | 2020 | Brazilian Championship 2019 | B33 Sicilian |
| 297. A Fier vs A Diamant |
| 1-0 | 44 | 2020 | Brazilian Championship 2019 | D40 Queen's Gambit Declined, Semi-Tarrasch |
| 298. A Diamant vs A Fier |
| ½-½ | 36 | 2020 | Brazilian Championship 2019 | B31 Sicilian, Rossolimo Variation |
| 299. A Diamant vs A Fier |
| 0-1 | 24 | 2020 | Brazilian Championship 2019 | B40 Sicilian |
| 300. A Diamant vs So |
| 0-1 | 21 | 2020 | PRO League Stage | A20 English |
Kibitzing
