Mckinnon-Duggins, Benjamin
Current rating: 1550
Record: 9-7
| Regional Championships Atlanta 2023 (pioneer) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 391 | Ye, Jason (1849) | Won 2-0 | +231545 |
| 2pioneer | 196 | Puffer, Jon (1403) | Lost 0-2 | -201525 |
| 3pioneer | 192 | Herr, Paul (1713) | Lost 1-2 | -151510 |
| 4pioneer | 375 | Hazuka, Anthony (1456) | Lost 0-2 | -191491 |
| 5pioneer | 576 | Inman, Mike (1517) | Won 2-0 | +191510 |
| 6pioneer | 360 | Pritchett, Shane (1489) | Lost 1-2 | -191491 |
| 7pioneer | 423 | Espinosa, Ivan (1777) | Won 2-0 | +231514 |
| 8pioneer | 327 | Salerno, Louis (1487) | Won 2-0 | +181532 |
| 9pioneer | 245 | Medwid, Nick (1552) | Won 2-0 | +181550 |
| average opponent: 1583record: 5-4 | new rating: 1550 | |||
| Grand Prix Columbus 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 145 | Ritner, Ronnie (1857) | Lost 1-2 | -121488 |
| 3modern | 236 | Porter, Donald (1479) | Lost 0-2 | -181470 |
| 4modern | 281 | Spears, Parker (1479) | Won 2-1 | +181488 |
| 5modern | 194 | Kregger, Darren (1529) | Lost 0-2 | -171471 |
| 6modern | 197 | Reynolds, Eric (1383) | Won 2-0 | +161487 |
| 7modern | 170 | Smith, Andrew (1379) | Won 2-0 | +161503 |
| 8modern | 107 | Thompson, Nicholas (1516) | Won 2-1 | +191522 |
| average opponent: 1517record: 4-3 | new rating: 1522 | |||