Hadiwidjaja, Mark
Current rating: 1548
Record: 7-5-2
| Grand Prix Singapore 2017 (XLN limited) | starting rating: 1547 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 69 | Lim, Yong Chin (1485) | Won 2-0 | +171564 |
| 2sealed | 56 | Ng, Wei San Wesley (1479) | Lost 0-2 | -201544 |
| 3sealed | 142 | Shen, Yan Ru (1604) | Won 2-1 | +201564 |
| 4sealed | 166 | Shinohara, Gen (1468) | Lost 0-2 | -201544 |
| 5sealed | 154 | Foo, Zhi Jie (1506) | Won 2-1 | +171561 |
| 6sealed | 101 | Yap, Jason (1845) | Lost 1-2 | -131548 |
| 7sealed | 160 | Lai, Jeremy (1499) | Won 2-1 | +171565 |
| 8sealed | 104 | De Beule, Servaes (1603) | Lost 1-2 | -171548 |
| average opponent: 1561record: 4-4 | new rating: 1548 | |||
| Grand Prix Kuala Lumpur 2012 (DKA standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 40 | Kiwanont, Sukhum (1671) | Draw 1-1 | +31503 |
| 5standard | 45 | Tamada, Ryoichi (1683) | Won 2-1 | +211524 |
| 6standard | 23 | Li, Fabien (1706) | Won 2-1 | +221546 |
| 7standard | 14 | Sia, Pei Ren (1566) | Lost 0-2 | -181528 |
| 8standard | 32 | Chew, Robb (1559) | Won 2-1 | +191547 |
| 9standard | 22 | Kang, Xing (1581) | Draw 1-1 | 01547 |
| average opponent: 1627record: 3-1-2 | new rating: 1547 | |||