Efendy, Yudy
Current rating: 1535
Record: 7-6
| Grand Prix Singapore 2015 (modern) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 340 | Goh Wei Jie, Gideon (1500) | Won 1-0 | +181515 |
| 2modern | 40 | Lai Meng Leong, Garion (1520) | Won 2-1 | +181533 |
| 3modern | 227 | Yang, Zhijian (1500) | Lost 0-2 | -181515 |
| 4modern | 144 | Jasmi, Hasry (1536) | Won 2-0 | +181533 |
| 5modern | 112 | Basallo III, Ricardo (1479) | Won 2-0 | +171550 |
| 6modern | 140 | Khoo, Shawn (1684) | Won 2-1 | +201570 |
| 7modern | 52 | Gao, Heng (1575) | Lost 0-2 | -181552 |
| 8modern | 148 | Kwek, Siang Koon (1556) | Lost 1-2 | -171535 |
| average opponent: 1544record: 5-3 | new rating: 1535 | |||
| Grand Prix Kuala Lumpur 2006 (DIS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 23 | Yasooka, Shota (1990) | Lost 1-2 | -101490 |
| 5sealed | 40 | Khoo, Aik Seng (1657) | Lost 1-2 | -151475 |
| 6sealed | 84 | Lee, Wen Yi Julian (1643) | Lost 0-2 | -151460 |
| 7sealed | 84 | Wong, Fu-sheng (1488) | Won 2-0 | +191479 |
| 8sealed | 67 | Cheah, Chuen Sheong (1491) | Won 2-0 | +181497 |
| average opponent: 1653record: 2-3 | new rating: 1497 | |||