Ong, Zhi
Current rating: 1394
Record: 6-13-2
| Regional Championships Singapore 2023 Cycle 4 (pioneer) | starting rating: 1429 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 50 | Teo, Gavin (1434) | Lost 0-2 | -181411 |
| 2pioneer | 74 | Lim, Chee Huang (1433) | Lost 0-2 | -171394 |
| top | average opponent: 1434record: 0-2 | new rating: 1394 | ||
| Regional Championships Singapore 2023 (pioneer) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 77 | Lee, Darien (1451) | Lost 0-2 | -191478 |
| 2pioneer | 72 | Cano Rodriguez, Miguel Angel (1648) | Lost 0-2 | -151463 |
| 3pioneer | 73 | Santiago, Rainier (1600) | Lost 0-2 | -161447 |
| 4pioneer | 68 | Koay, Benny (1448) | Lost 0-2 | -181429 |
| top | average opponent: 1537record: 0-4 | new rating: 1429 | ||
| Regional Championships Clark 2023 (ONE standard) | starting rating: 1471 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 6 | Fong, Allan (1432) | Draw 1-1 | -11470 |
| 2standard | 19 | Gragasin, Billy (1478) | Won 2-1 | +191489 |
| 3standard | 10 | Kositaporn, Nonthakorn (1732) | Draw 1-1 | +41493 |
| 4standard | 19 | Fong, Fredrick (1488) | Won 2-0 | +181511 |
| 5standard | 12 | Loh, Jason (1645) | Lost 1-2 | -161495 |
| 6standard | 20 | Pariwono, Edward (1537) | Won 2-0 | +191514 |
| 7standard | 13 | See, Spencer (1541) | Lost 0-2 | -171497 |
| top | average opponent: 1550record: 3-2-2 | new rating: 1497 | ||
| Grand Prix Singapore 2018 (DOM standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 32 | Maeda, Yasuyuki (1610) | Won 2-0 | +201520 |
| 2standard | 136 | Salim, Alvin Anderson (1519) | Won 2-0 | +181538 |
| 3standard | 115 | Lee, Benedict (1602) | Lost 1-2 | -171521 |
| 4standard | 219 | Sun, Guolong (1718) | Lost 1-2 | -141507 |
| 5standard | 178 | Chen, Zexuan (1498) | Lost 1-2 | -181489 |
| 6standard | 238 | Lim, Lawrence (1456) | Won 2-0 | +171506 |
| 7standard | 209 | Lim, Yi Xiong Anselm (1604) | Lost 0-2 | -161490 |
| 8standard | 134 | Pitianusorn, Bovorn (1457) | Lost 1-2 | -191471 |
| top | average opponent: 1558record: 3-5 | new rating: 1471 | ||