Bumbaugh, Lyle
Current rating: 1377
| Grand Prix Charlotte 2015 (modern) | starting rating: 1379 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1022 | Elverd, Michael (1463) | Lost 0-2 | -171362 |
| 2modern | 1088 | Richards, Phillip M (1482) | Won 2-1 | +201382 |
| 3modern | 991 | Reynolds, John (1464) | Lost 1-2 | -161366 |
| 4modern | 1101 | Alexander, Forrest (1468) | Won 2-0 | +201386 |
| 5modern | 870 | Jordan, Caleb (1508) | Lost 1-2 | -161370 |
| 6modern | 908 | Spina, Nicholas (1451) | Lost 0-2 | -171353 |
| 7modern | 783 | Eavenson, Collin Z (1463) | Won 2-1 | +201373 |
| 8modern | 586 | Neal, Robert (1481) | Won 2-0 | +201393 |
| 9modern | 663 | Collins, Corey P (1500) | Lost 1-2 | -161377 |
| top | average opponent: 1476record: 4-5 | new rating: 1377 | ||
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1442 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 679 | Singer, Sean (1511) | Lost 0-2 | -171425 |
| 3sealed | 714 | Bui, Andrew (1498) | Lost 1-2 | -161409 |
| 4sealed | 875 | Ronca, David (1479) | Lost 0-2 | -171392 |
| 5sealed | 877 | Marmorato, Matthew (1465) | Won 2-1 | +191411 |
| 6sealed | 795 | Menard, Bryce J (1515) | Lost 0-2 | -161395 |
| 7sealed | 750 | Pollini, Adam (1465) | Lost 0-2 | -161379 |
| top | average opponent: 1489record: 1-5 | new rating: 1379 | ||
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 413 | Coyne, Chris P (1498) | Lost 0-2 | -181482 |
| 3sealed | 596 | STARK, AARON (1501) | Won 2-1 | +181500 |
| 4sealed | 313 | Keal, Joshua (1501) | Lost 0-2 | -181482 |
| 5sealed | 519 | Pokladek, Michael L (1527) | Lost 1-2 | -171465 |
| 6sealed | 579 | Duprez, Dean (1466) | Lost 0-2 | -181447 |
| 7sealed | 509 | Tam, Wai (1127) | Won 2-0 | +131460 |
| 8sealed | 388 | Dragomanovits, Nico F (1499) | Lost 0-2 | -181442 |
| top | average opponent: 1446record: 2-5 | new rating: 1442 | ||