Rong Feng, Jun
Current rating: 1506
Record: 6-7-1
| Grand Prix Costa Rica 2016 (SOI standard) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 27 | Esquivel Oviedo, Oscar (1500) | Won 2-0 | +191466 |
| 2standard | 64 | Pannell, Thomas (1781) | Won 2-0 | +231489 |
| 3standard | 53 | Wright, Christopher (1491) | Won 2-1 | +181507 |
| 4standard | 18 | Breitman, Alan (1772) | Won 2-0 | +231530 |
| 5standard | 17 | Alvarado, Saul (1863) | Lost 0-2 | -121518 |
| 6standard | 27 | Villalobos, Jorge (1598) | Won 2-0 | +191537 |
| 7standard | 20 | Madrigal, Julio (1571) | Draw 1-1 | +11538 |
| 8standard | 28 | Botis, Juan Carlos (1753) | Lost 0-2 | -141524 |
| 9standard | 51 | Batista Viloria, Axel (1557) | Lost 0-2 | -181506 |
| average opponent: 1654record: 5-3-1 | new rating: 1506 | |||
| Grand Prix Mexico City 2014 (BNG limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 111 | Castelan Morales, Angel (1482) | Lost 0-2 | -181482 |
| 2sealed | 283 | Perez Toledo, Ulises (1482) | Lost 1-2 | -181464 |
| 3sealed | 311 | Brambila, Jesus M (1464) | Won 2-0 | +181482 |
| 4sealed | 233 | De La Roca, Mario (1482) | Lost 0-2 | -181464 |
| 5sealed | 267 | Lopez Ruiz, Froylan (1513) | Lost 0-2 | -171447 |
| average opponent: 1485record: 1-4 | new rating: 1447 | |||