| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 351. N Crickmore vs M Pein |
 | 0-1 | 60 | 2019 | British Championship | D85 Grunfeld |
| 352. M Pein vs J Emms |
| ½-½ | 38 | 2019 | British Championship | A37 English, Symmetrical |
| 353. M Wadsworth vs M Pein |
| 1-0 | 43 | 2019 | British Championship | A15 English |
| 354. M Pein vs J Merriman |
| 1-0 | 23 | 2019 | British Championship | A07 King's Indian Attack |
| 355. K Arkell vs M Pein |
| 1-0 | 52 | 2019 | British Championship | A15 English |
| 356. M Pein vs C Holland |
| 1-0 | 26 | 2019 | British Championship | E62 King's Indian, Fianchetto |
| 357. J B Willow vs M Pein |
| ½-½ | 76 | 2019 | British Championship | B09 Pirc, Austrian Attack |
| 358. M Pein vs D Eggleston |
| 0-1 | 35 | 2019 | British Championship | A14 English |
| 359. P L Basso vs M Pein |
| 1-0 | 27 | 2020 | Gibraltar Masters | A40 Queen's Pawn Game |
| 360. M Pein vs F Semprun Martinez |
| 1-0 | 52 | 2020 | Gibraltar Masters | A37 English, Symmetrical |
| 361. T Abergel vs M Pein |
| 1-0 | 22 | 2020 | Gibraltar Masters | A06 Reti Opening |
| 362. B Deac vs M Pein |
| 1-0 | 28 | 2021 | European Championship | A28 English |
| 363. L van Foreest vs M Pein |
| 1-0 | 61 | 2021 | European Championship | C50 Giuoco Piano |
| 364. M Pein vs S Butenandt |
| 1-0 | 54 | 2021 | European Championship | D45 Queen's Gambit Declined Semi-Slav |
| 365. M Pein vs G Pidluznij |
| 0-1 | 34 | 2022 | European Blitz Chess Championship | D43 Queen's Gambit Declined Semi-Slav |
| 366. G Pidluznij vs M Pein |
| ½-½ | 38 | 2022 | European Blitz Chess Championship | A43 Old Benoni |
| 367. M Pein vs C Atako |
| 1-0 | 43 | 2024 | British Championship | D12 Queen's Gambit Declined Slav |
| 368. M Wadsworth vs M Pein |
| 1-0 | 39 | 2024 | British Championship | A59 Benko Gambit |
| 369. M Pein vs J M Sanger |
| 1-0 | 41 | 2024 | British Championship | D94 Grunfeld |
| 370. R Pert vs M Pein |
| ½-½ | 41 | 2024 | British Championship | D86 Grunfeld, Exchange |
| 371. M Pein vs P K Wells |
| 1-0 | 29 | 2024 | British Championship | D45 Queen's Gambit Declined Semi-Slav |
| 372. S Bazakutsa vs M Pein |
| 1-0 | 55 | 2024 | British Championship | A20 English |
| 373. M Pein vs D Eggleston |
| 1-0 | 44 | 2024 | British Championship | E49 Nimzo-Indian, 4.e3, Botvinnik System |
| 374. Y Han vs M Pein |
| 1-0 | 43 | 2024 | British Championship | C45 Scotch Game |
| 375. M Pein vs B Derakhshani |
| 0-1 | 60 | 2025 | 4NCL 2024/25 | A13 English |
Kibitzing
