Armstrong, Cecil
Current rating: 1545
Record: 20-17-2
| Grand Prix Houston 2016 (OGW standard) | starting rating: 1556 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 275 | Martin, Scot (1573) | Lost 0-2 | -181538 |
| 2standard | 461 | Braun, Alan (1429) | Won 2-1 | +161554 |
| 3standard | 489 | Glatfelter, Garrett (1500) | Won 2-1 | +171571 |
| 4standard | 475 | Miller, Jessica (1522) | Draw 1-1 | -11570 |
| 5standard | 371 | Sanchez, Gerson (1520) | Won 2-0 | +171587 |
| 6standard | 257 | Castillon Jr, Jimmy (1501) | Draw 1-1 | -11586 |
| 7standard | 367 | Valenzuela, Esmeralda (1394) | Lost 1-2 | -221564 |
| 8standard | 462 | Bishop, Robert (1519) | Lost 0-2 | -191545 |
| top | average opponent: 1495record: 3-3-2 | new rating: 1545 | ||
| Grand Prix Dallas-Fort Worth 2015 (ORI limited) | starting rating: 1506 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 466 | Thompson, Lanston (1500) | Won 2-1 | +181524 |
| 2sealed | 222 | Sasin, Tracie (1519) | Won 2-1 | +181542 |
| 3sealed | 9 | Brakefield, Brett (1569) | Won 2-1 | +191561 |
| 4sealed | 32 | Astroza Tagle, Alonso (1655) | Lost 1-2 | -171544 |
| 5sealed | 279 | Desposito, Nicolas (1605) | Won 2-0 | +191563 |
| 6sealed | 217 | Thompson, Gerry (1822) | Lost 1-2 | -131550 |
| 7sealed | 279 | Thomason, Timothy (1862) | Won 2-1 | +241574 |
| 8sealed | 177 | Rutledge, Jamie (1570) | Lost 1-2 | -181556 |
| top | average opponent: 1638record: 5-3 | new rating: 1556 | ||
| Grand Prix Denver 2015 (KTK standard) | starting rating: 1531 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 287 | Thornton, Jason (1438) | Lost 0-2 | -201511 |
| 2standard | 585 | Dexter, Ryan (1478) | Lost 0-2 | -181493 |
| 3standard | 666 | Smith, Darian (1464) | Won 2-0 | +171510 |
| 4standard | 516 | McWhite, Clayton J (1482) | Won 2-1 | +181528 |
| 5standard | 415 | Steele, Cory (1436) | Lost 1-2 | -201508 |
| 6standard | 460 | Truman, Weston (1501) | Lost 1-2 | -181490 |
| 7standard | 406 | Coleman, Eric (1463) | Won 2-1 | +171507 |
| 8standard | 291 | Lewin, James (1481) | Won 2-0 | +181525 |
| 9standard | 218 | Ashby, James (1497) | Lost 1-2 | -191506 |
| top | average opponent: 1471record: 4-5 | new rating: 1506 | ||
| Grand Prix San Antonio 2014 (KTK standard) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 301 | Maxon, Mark (1522) | Won 2-1 | +181535 |
| 2standard | 207 | Baker, Bogart (1537) | Lost 0-2 | -181517 |
| 3standard | 421 | Hotz, Chris (1500) | Won 2-0 | +181535 |
| 4standard | 256 | Chang, James (1415) | Lost 1-2 | -201515 |
| 5standard | 314 | Cook, Aaron (1460) | Lost 1-2 | -191496 |
| 6standard | 365 | Lopez, Nereo (1505) | Won 2-0 | +181514 |
| 7standard | 248 | Mosley, Brock (1452) | Won 2-0 | +171531 |
| top | average opponent: 1484record: 4-3 | new rating: 1531 | ||
| Grand Prix Austin 2012 (ISD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 95 | Froiland, Dave (1474) | Lost 1-2 | -181482 |
| 2sealed | 337 | McCormick, Cy (1470) | Lost 0-2 | -191463 |
| 3sealed | 386 | Rangel, Joshua (1420) | Won 2-1 | +181481 |
| 4sealed | 449 | Richner, Tammy S (1400) | Won 2-1 | +161497 |
| 5sealed | 284 | Phillips, Joe (1483) | Won 2-1 | +181515 |
| 6sealed | 227 | Jung, Sang (1588) | Won 2-1 | +191534 |
| 7sealed | 144 | Fulgium, James (1601) | Lost 1-2 | -171517 |
| top | average opponent: 1491record: 4-3 | new rating: 1517 | ||