Pratomo, Arwin
Current rating: 1536
Record: 8-7
| Regional Championships Singapore 2023 (pioneer) | starting rating: 1529 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 10 | Hee, Chung Wye (1625) | Won 2-0 | +201549 |
| 2pioneer | 38 | Gondowijoyo, Kevin (1538) | Won 2-0 | +181567 |
| 3pioneer | 9 | Hart, Jacob (1848) | Won 2-0 | +231590 |
| 4pioneer | 3 | Oh, Chai Hock Andrew (1452) | Won 2-1 | +151605 |
| 5pioneer | 2 | Sayson, Christian Dale (1546) | Lost 0-2 | -191586 |
| 6pioneer | 13 | Fong, Fredrick (1547) | Lost 0-2 | -181568 |
| 7pioneer | 20 | Kositaporn, Nonthakorn (1804) | Lost 0-2 | -141554 |
| 8pioneer | 19 | Kio, Zender (1540) | Lost 0-2 | -181536 |
| average opponent: 1613record: 4-4 | new rating: 1536 | |||
| Regional Championships Clark 2023 (ONE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 4 | Corsieri Cano, Massimo (1500) | Won 2-0 | +181518 |
| 2standard | 5 | Lee, Rick Hup Beng (1767) | Lost 1-2 | -141504 |
| 3standard | 23 | Koh, Kai Che (1611) | Won 2-0 | +201524 |
| 4standard | 6 | Ferries, Ryan (1559) | Lost 1-2 | -171507 |
| 5standard | 19 | Villanueva, Kevin (1452) | Lost 0-2 | -191488 |
| 6standard | 27 | Oca, Ramon Allan (1587) | Won 2-0 | +201508 |
| 7standard | 23 | Beley, Ryan Mark (1702) | Won 2-0 | +211529 |
| average opponent: 1597record: 4-3 | new rating: 1529 | |||