Guevarra, Jonie
Current rating: 1428
Record: 7-11
| Grand Prix Manila 2012 (AVR standard) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 22 | Bautista, Martin (1549) | Lost 0-2 | -171465 |
| 2standard | 301 | Malto, Charles Marvin (1482) | Won 2-0 | +181483 |
| 3standard | 292 | Ordonez, Alejandro (1436) | Lost 0-2 | -191464 |
| 4standard | 435 | Arcos, Mark Anthony D (1481) | Lost 1-2 | -171447 |
| 5standard | 483 | Reyes, Ninoy Rafael (1464) | Lost 1-2 | -181429 |
| 6standard | 456 | Gealogo, Carl Patrick (1447) | Won 2-1 | +181447 |
| 7standard | 375 | Yap, Oliver (1386) | Won 2-0 | +171464 |
| 8standard | 334 | Dela Vega, Michael r (1484) | Lost 0-2 | -171447 |
| 9standard | 317 | Batayola, Julius (1433) | Lost 1-2 | -191428 |
| average opponent: 1462record: 3-6 | new rating: 1428 | |||
| Grand Prix Manila 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 327 | Ferrer, Jered Amadeus (1500) | Won 2-0 | +181518 |
| 2standard | 77 | Yupanondh, Peeraporn (1490) | Lost 1-2 | -191499 |
| 3standard | 286 | Ong, Christopher U (1522) | Lost 0-2 | -171482 |
| 4standard | 393 | Rama, Oliver (1482) | Lost 0-2 | -181464 |
| 5standard | 434 | Ilagan, Marco (1465) | Won 2-0 | +181482 |
| 6standard | 305 | Rabago, Rainier Ardine (1518) | Won 2-0 | +191501 |
| 7standard | 262 | Camit, Winston (1502) | Won 2-0 | +181519 |
| 8standard | 187 | Sioson, Dharryl (1519) | Lost 0-2 | -181501 |
| 9standard | 163 | Zhou, Zhiao (1452) | Lost 1-2 | -191482 |
| average opponent: 1494record: 4-5 | new rating: 1482 | |||