Armstrong, Matthew
Current rating: 1335
Record: 12-24-3
| Regional Championships Atlanta 2023 (pioneer) | starting rating: 1357 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 468 | Swarlis, Michael (1552) | Won 2-1 | +211378 |
| 2pioneer | 146 | Walker, Austin (1551) | Lost 0-2 | -151363 |
| 3pioneer | 404 | Wooden, Evan (1442) | Won 2-1 | +201383 |
| 4pioneer | 187 | Fairchild, Ash (1563) | Lost 0-2 | -151368 |
| 5pioneer | 422 | Hedgpeth, Jordan (1415) | Lost 1-2 | -171351 |
| 6pioneer | 350 | Greco, Hannah (1498) | Lost 0-2 | -161335 |
| top | average opponent: 1504record: 2-4 | new rating: 1335 | ||
| Grand Prix Sydney 2016 (EMN limited) | starting rating: 1385 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 176 | Yang, Shu Ho (1500) | Won 2-0 | +201405 |
| 2sealed | 33 | Hawkins Jr, Patrick (1469) | Lost 0-2 | -161389 |
| 3sealed | 303 | Morgan, Toby (1489) | Lost 1-2 | -171372 |
| 4sealed | 378 | Ou, Galen (1484) | Lost 0-2 | -151357 |
| top | average opponent: 1485record: 1-3 | new rating: 1357 | ||
| Grand Prix Sydney 2015 (BFZ limited) | starting rating: 1418 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 389 | Beckham, Duncan (1500) | Lost 1-2 | -161402 |
| 2sealed | 280 | Noble, David [AUS] (1495) | Lost 1-2 | -171385 |
| top | average opponent: 1497record: 0-2 | new rating: 1385 | ||
| Grand Prix Sydney 2014 (M15 limited) | starting rating: 1407 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 267 | Lemon, Joshua (1417) | Won 2-0 | +181425 |
| 2sealed | 203 | Prakash, Divyesh (1519) | Won 2-0 | +201445 |
| 3sealed | 79 | Dean, Matin (1594) | Lost 1-2 | -161429 |
| 4sealed | 208 | Fox, Joseph (1547) | Won 2-0 | +201449 |
| 5sealed | 52 | Lin, Johnson (1520) | Lost 1-2 | -161433 |
| 6sealed | 179 | de Vries-Turnell, Keayn (1465) | Lost 0-2 | -181415 |
| 7sealed | 182 | Abel, Andrew (1500) | Won 2-1 | +201435 |
| 8sealed | 33 | Merrick, Liam (1516) | Lost 0-2 | -171418 |
| top | average opponent: 1510record: 4-4 | new rating: 1418 | ||
| Grand Prix Melbourne 2014 (BNG standard) | starting rating: 1397 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 40 | archer, joe s (1500) | Won 2-1 | +201417 |
| 2standard | 100 | Emerson, Adrian (1518) | Won 2-0 | +201437 |
| 3standard | 114 | Feng, Dennis (1490) | Lost 0-2 | -171420 |
| 4standard | 179 | Naughton, Paul (1526) | Lost 1-2 | -171403 |
| 5standard | 304 | Vanyai, Jacob (1499) | Won 2-1 | +201423 |
| 6standard | 136 | Yuen, Tim (1501) | Lost 0-2 | -161407 |
| top | average opponent: 1506record: 3-3 | new rating: 1407 | ||
| Grand Prix Sydney 2013 (RTR limited) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 117 | Worrell, Chris (1457) | Lost 0-2 | -181449 |
| 2sealed | 261 | Topping, Nathan (1496) | Lost 1-2 | -171432 |
| 3sealed | 261 | Dokos, Elias (1464) | Lost 0-2 | -181414 |
| 4sealed | 296 | Gallagher, Michael (1451) | Lost 0-2 | -171397 |
| top | average opponent: 1467record: 0-4 | new rating: 1397 | ||
| Grand Prix Brisbane 2004 (COK limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 19 | King, Joshua [AUS] (1500) | Won 2-1 | +181499 |
| 5sealed | 7 | Petersen, Colin [AUS] (1570) | Lost 0-2 | -161483 |
| 6sealed | 20 | Breakey, Hugh (1560) | Draw 1-1 | +11484 |
| 7sealed | 27 | Bright, Jarrod (1526) | Lost 0-2 | -171467 |
| top | average opponent: 1539record: 1-2-1 | new rating: 1467 | ||
| Grand Prix Sydney 2003 (MRD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 15 | Stennett, Joshua (1500) | Lost 0-2 | -181482 |
| 2sealed | 88 | Hutchinson, Val (1448) | Won 2-0 | +171499 |
| 3sealed | 75 | Blom, Matthew (1501) | Lost 0-2 | -181481 |
| 4sealed | 106 | Gain, Jason (1480) | Draw 1-1 | 01481 |
| 5sealed | 111 | Seaton, John (1465) | Draw 1-1 | 01481 |
| top | average opponent: 1479record: 1-2-2 | new rating: 1481 | ||