Ong, Jan
Current rating: 1505
Record: 13-14-1
| Regional Championships Calgary 2022 (pioneer) | starting rating: 1546 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 97 | Baker, Ian (1396) | Won 2-1 | +151561 |
| 2pioneer | 14 | Baryluk, Kyle (1378) | Lost 1-2 | -211540 |
| 3pioneer | 51 | Danilkiewicz, Jacob (1500) | Lost 0-2 | -191521 |
| 4pioneer | 74 | Beldon, Omar (1652) | Lost 1-2 | -151506 |
| 5pioneer | 105 | Taylor, Clint (1523) | Won 2-0 | +181524 |
| 6pioneer | 79 | Kemp-Boulet, Spencer (1486) | Lost 1-2 | -191505 |
| top | average opponent: 1489record: 2-4 | new rating: 1505 | ||
| Regional Championships Toronto 2022 (pioneer) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 89 | Mulloy, Josh (1900) | Lost 1-2 | -121511 |
| 2pioneer | 138 | Stuckless, Noah (1485) | Won 2-1 | +181529 |
| 3pioneer | 77 | Lansche, Derek (1712) | Lost 0-2 | -151514 |
| 4pioneer | 138 | Leger, Philippe (1676) | Lost 0-2 | -151499 |
| 5pioneer | 132 | Balderama, Alexis (1463) | Won 2-0 | +171516 |
| 6pioneer | 117 | Gonzalez Garzon, German (1472) | Won 2-0 | +171533 |
| 7pioneer | 73 | Dore, Maxime (1880) | Won 2-1 | +241557 |
| 8pioneer | 72 | Archdekin, Jamie (1928) | Lost 1-2 | -111546 |
| top | average opponent: 1689record: 4-4 | new rating: 1546 | ||
| Grand Prix Calgary 2019 (modern) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 229 | Fischer, Marc (1500) | Lost 1-2 | -181466 |
| 2modern | 240 | Sollows, Matt (1505) | Lost 1-2 | -171449 |
| 3modern | 402 | Simon, Roland (1515) | Won 2-0 | +191468 |
| 4modern | 356 | Experience, Legion (1483) | Lost 0-2 | -181450 |
| 5modern | 366 | Brews, Robert (1470) | Won 2-0 | +191469 |
| 6modern | 306 | Ng, Michael (1394) | Won 2-0 | +161485 |
| 7modern | 196 | Paul, Jason [CAN] (1561) | Won 2-1 | +201505 |
| 8modern | 134 | Lycklama, Ben (1504) | Won 2-1 | +181523 |
| top | average opponent: 1492record: 5-3 | new rating: 1523 | ||
| Grand Prix Munich 2003 (MRD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 169 | Zniszczol, Jacek (1464) | Won 2-1 | +171517 |
| 2sealed | 188 | Brendemuhl, Bernd (1578) | Won 2-0 | +191536 |
| 3sealed | 81 | Dobry, Benjamin (1702) | Lost 0-2 | -151521 |
| 4sealed | 248 | Brundler, Alex (1388) | Draw 1-1 | -21519 |
| 5sealed | 221 | Dobner, Corinna (1557) | Lost 0-2 | -171502 |
| 6sealed | 259 | Pavelka, Ondrej (1500) | Lost 0-2 | -181484 |
| top | average opponent: 1531record: 2-3-1 | new rating: 1484 | ||