Widjaja, Charles
Current rating: 1444
Record: 3-7-1
| Regional Championships Singapore 2022 (pioneer) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 42 | Wongkar, Nathanael (1500) | Won 2-0 | +191487 |
| 2pioneer | 24 | Po, John Jerson (1518) | Won 2-0 | +181505 |
| 3pioneer | 14 | Fairul, Alhady (1542) | Lost 1-2 | -171488 |
| 4pioneer | 27 | Pagtakhan, Werick (1601) | Lost 0-2 | -161472 |
| 5pioneer | 31 | Chujitngamsuwong, Thanthawat (1535) | Lost 0-2 | -171455 |
| 6pioneer | 41 | Camangon, Gerald (1830) | Won 2-0 | +251480 |
| 7pioneer | 42 | Lim, David (1460) | Lost 0-2 | -191461 |
| 8pioneer | 39 | Primicias, James Joash (1478) | Lost 0-2 | -171444 |
| average opponent: 1558record: 3-5 | new rating: 1444 | |||
| Grand Prix Bangkok 2019 (ELD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 88 | Sy, Manchester (1611) | Lost 0-2 | -161484 |
| 3sealed | 213 | Kashiwase, Kazuya (1571) | Lost 0-1 | -161468 |
| 4sealed | 293 | Phasusatien, Phantree (1490) | Draw 1-1 | 01468 |
| average opponent: 1557record: 0-2-1 | new rating: 1468 | |||