Yao Tham Sao, David
Current rating: 1554
| Grand Prix Prague 2003 (LGN limited) | starting rating: 1576 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 344 | Wiedenbein, Holger (1506) | Lost 1-2 | -201556 |
| 2sealed | 324 | Dvorshak, Devin (1410) | Won 2-0 | +161572 |
| 3sealed | 307 | Rosner, Bodo (1610) | Lost 1-2 | -181554 |
| top | average opponent: 1509record: 1-2 | new rating: 1554 | ||
| Grand Prix Seville 2003 (LGN limited) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 270 | Collell, Aitor (1482) | Won 2-0 | +181520 |
| 2sealed | 145 | Larena, Clemente (1518) | Won 2-0 | +181538 |
| 3sealed | 17 | Faustino, Manuel (1592) | Won 2-0 | +191557 |
| 4sealed | 30 | Folgado Costa, Miguel (1500) | Lost 1-2 | -191538 |
| 5sealed | 115 | Sequeira, Ricardo (1609) | Lost 0-2 | -171521 |
| 6sealed | 125 | Ortuno Maqueda, Manuel (1518) | Won 2-0 | +181539 |
| 7sealed | 124 | Santos, Daniel [ESP] (1540) | Won 2-0 | +181557 |
| 8sealed | 80 | Vidal, Juan (1601) | Won 2-0 | +191576 |
| top | average opponent: 1545record: 6-2 | new rating: 1576 | ||
| Grand Prix Biarritz 2001 (ODY limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 167 | hucol, thomas (1500) | Draw 1-1 | 01500 |
| 2sealed | 134 | Robert, Laurent (1499) | Won 2-0 | +181518 |
| 3sealed | 78 | Perez, Raul [ESP] (1581) | Won 2-0 | +191537 |
| 4sealed | 54 | cornut, remy (1537) | Won 2-0 | +181555 |
| 5sealed | 30 | Bornarel, Nicolas (1590) | Lost 0-2 | -171538 |
| 6sealed | 61 | Smadhi, Hafez (1534) | Lost 1-2 | -181520 |
| 7sealed | 109 | Samson, Florian (1535) | Lost 1-2 | -181502 |
| top | average opponent: 1539record: 3-3-1 | new rating: 1502 | ||