McCoy, Tiffany
Current rating: 1382
Record: 5-12
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 358 | Schmollinger, Randall (1469) | Lost 0-2 | -181430 |
| 2modern | 337 | Cuttler, William (1473) | Lost 0-2 | -171413 |
| 3modern | 571 | Jordan, Chris (1422) | Lost 1-2 | -181395 |
| 4modern | 564 | Jones, Aiden (1445) | Won 2-0 | +191414 |
| 5modern | 510 | Santo, Nathan (1546) | Won 2-0 | +201434 |
| 6modern | 419 | Colby, George (1482) | Lost 1-2 | -171417 |
| 7modern | 333 | Sanabria, Christopher (1433) | Lost 0-2 | -181399 |
| 8modern | 273 | Arneson, Edward (1444) | Lost 0-2 | -171382 |
| average opponent: 1464record: 2-6 | new rating: 1382 | |||
| Grand Prix Washington DC 2014 (JOU limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 329 | Rubinfeld, Jason (1564) | Lost 0-2 | -171483 |
| 2sealed | 510 | Lauria, Robert (1482) | Lost 1-2 | -181465 |
| 3sealed | 585 | Schofield, Bryan (1584) | Lost 0-1 | -161449 |
| 4sealed | 616 | Price, Sean (1446) | Lost 1-2 | -181431 |
| 5sealed | 553 | Gelillo, Daniel (1427) | Won 2-0 | +181449 |
| 6sealed | 460 | Egan, Andrew (1230) | Won 2-0 | +141463 |
| 7sealed | 361 | Wu, Andrew (1457) | Lost 0-2 | -181445 |
| 8sealed | 280 | Dicker, Elliott (1546) | Lost 0-2 | -161429 |
| 9sealed | 218 | Neary, Tom (1463) | Won 2-0 | +191448 |
| average opponent: 1467record: 3-6 | new rating: 1448 | |||