Yambay, David
Current rating: 1579
Record: 18-15
| Grand Prix Louisville 2017 (legacy) | starting rating: 1628 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 407 | Cunningham, Samuel (1456) | Lost 0-2 | -211607 |
| 2legacy | 765 | Doyle, Patrick (1430) | Won 2-0 | +151622 |
| 3legacy | 897 | Burnett, Sean (1503) | Lost 1-2 | -211601 |
| 4legacy | 865 | Gunter, Joe (1490) | Won 2-1 | +161617 |
| 5legacy | 710 | Orr, Jonathan (1658) | Lost 1-2 | -171600 |
| 6legacy | 800 | Carrick, Emily (1529) | Won 2-1 | +171617 |
| 7legacy | 810 | Shafer, Clayton (1727) | Lost 1-2 | -161601 |
| 8legacy | 764 | Joo, Jonathan (1416) | Lost 0-2 | -221579 |
| top | average opponent: 1526record: 3-5 | new rating: 1579 | ||
| Grand Prix Vienna 2014 (BNG limited) | starting rating: 1457 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 283 | Lipitz, Amit (1500) | Won 2-1 | +181475 |
| 2sealed | 8 | Lukes, Bretislav (1624) | Lost 0-2 | -151460 |
| 3sealed | 423 | Fartacek, David (1621) | Won 2-0 | +211481 |
| 4sealed | 274 | Matthies, Alexander (1511) | Won 2-1 | +191500 |
| 5sealed | 180 | Lachaud, Remy (1594) | Won 2-1 | +191519 |
| 6sealed | 47 | Niznansky, Robert (1506) | Lost 0-2 | -181501 |
| 7sealed | 146 | Gasparac, Luka (1616) | Won 2-0 | +201521 |
| 8sealed | 83 | Danek, Petr (1725) | Won 2-0 | +221543 |
| 9sealed | 99 | Deley, Sebastien (1638) | Won 2-1 | +201563 |
| 10draft | 37 | Bottcher, Daniel (1652) | Won 2-1 | +191582 |
| 11draft | 9 | Petreski, Samoil (1746) | Won 2-0 | +211603 |
| 12draft | 53 | Bieniek, Lukasz (1675) | Won 2-0 | +191622 |
| 13draft | 5 | Utzon, Mads (1721) | Lost 1-2 | -161606 |
| 14draft | 63 | Stossier, Daniel (1807) | Won 2-0 | +221628 |
| 15draft | 44 | Sushalskyy, Sergiy (1860) | ID | 01628 |
| top | average opponent: 1653record: 11-3-1 | new rating: 1628 | ||
| Grand Prix Pittsburgh 2013 (GTC limited) | starting rating: 1452 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 409 | Thompson, Kevin (1500) | Lost 1-2 | -171435 |
| 2sealed | 463 | Scott, Louis N (1482) | Won 2-1 | +191454 |
| 3sealed | 458 | Genna, Peter (1498) | Lost 1-2 | -171437 |
| 4sealed | 556 | Kinser, Jonathan (1482) | Won 2-1 | +191456 |
| 5sealed | 460 | Dovey, Emily (1459) | Won 2-0 | +181474 |
| 6sealed | 263 | Figueroa, Eddie (1517) | Lost 1-2 | -171457 |
| top | average opponent: 1490record: 3-3 | new rating: 1457 | ||
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 68 | Michael, Kevin (1640) | Lost 1-2 | -151485 |
| 5sealed | 196 | Goud, Michael (1611) | Lost 0-2 | -161469 |
| 6sealed | 371 | Pietrowski Jr, John (1502) | Won 2-0 | +181487 |
| 7sealed | 271 | Ayala, Hermes (1494) | Lost 0-2 | -171470 |
| 8sealed | 346 | Jarvis, Kasey (1516) | Lost 1-2 | -181452 |
| top | average opponent: 1553record: 1-4 | new rating: 1452 | ||