| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 251. J Cooper vs D B Lund |
| 1-0 | 37 | 2018 | 4NCL 2017/18 | A21 English |
| 252. S Collins vs J Cooper |
| 1-0 | 33 | 2018 | 4NCL Div 1a 2018/19 | B08 Pirc, Classical |
| 253. J Cooper vs R M McKay |
| 0-1 | 37 | 2018 | 4NCL Div 1a 2018/19 | A04 Reti Opening |
| 254. J Cooper vs D Alsina Leal |
| 0-1 | 40 | 2019 | 4NCL Div 1a 2018/19 | A21 English |
| 255. A Oyama vs J Cooper |
| ½-½ | 22 | 2019 | 4NCL Div 1a 2018/19 | B23 Sicilian, Closed |
| 256. J Cooper vs G Jones |
| 0-1 | 41 | 2019 | 4NCL Div 1a 2018/19 | E64 King's Indian, Fianchetto, Yugoslav System |
| 257. W Claridge-Hansen vs J Cooper |
| 1-0 | 37 | 2019 | 4NCL Div 1a 2018/19 | A30 English, Symmetrical |
| 258. A C Taylor vs J Cooper |
| 1-0 | 54 | 2019 | 4NCL Div 1a 2018/19 | A37 English, Symmetrical |
| 259. J Cooper vs D Abbas |
| ½-½ | 38 | 2019 | 4NCL Div 1a 2018/19 | A37 English, Symmetrical |
| 260. J Cooper vs R Reimanis |
| ½-½ | 40 | 2019 | 4NCL Div 1a 2018/19 | A14 English |
| 261. H Stepanyan vs J Cooper |
| 1-0 | 45 | 2019 | 4NCL Div 1a 2018/19 | A56 Benoni Defense |
| 262. J Cooper vs P Roberson |
| 0-1 | 51 | 2019 | 4NCL Div 1a 2018/19 | A37 English, Symmetrical |
| 263. J Pein vs J Cooper |
| ½-½ | 40 | 2022 | Four Nations Chess League | B20 Sicilian |
| 264. J Cooper vs M Wadsworth |
| 0-1 | 30 | 2022 | Four Nations Chess League | A06 Reti Opening |
Kibitzing
