Welden, Jason
Current rating: 1454
Record: 8-11
| Grand Prix Nashville 2010 (SOM limited) | starting rating: 1489 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 89 | Zimmerman, Spencer (1500) | Lost 0-2 | -181471 |
| 2sealed | 206 | Bondioli, Mark (1526) | Lost 1-2 | -171454 |
| 3sealed | 295 | Holden, Russell (1465) | Won 2-1 | +181472 |
| 4sealed | 314 | Burton, Cody (1484) | Lost 1-2 | -181454 |
| top | average opponent: 1494record: 1-3 | new rating: 1454 | ||
| Grand Prix Munich 2003 (MRD limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 315 | Pulfa, Marcel (1500) | Won 2-1 | +191485 |
| 2sealed | 144 | Le, Tuan (1500) | Won 2-0 | +181503 |
| 3sealed | 36 | Foltyn, Jan (1660) | Lost 1-2 | -151488 |
| 4sealed | 204 | Hibler, Andreas (1519) | Won 2-0 | +181506 |
| 5sealed | 152 | Pippel, Bernhard (1532) | Lost 0-2 | -171489 |
| top | average opponent: 1542record: 3-2 | new rating: 1489 | ||
| Grand Prix Hamburg 2002 (Odyssey block) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 64 | Noth, Gunnar (1500) | Won 2-0 | +191483 |
| 2block | 57 | Fegert, Klaus (1517) | Won 2-1 | +181501 |
| 3block | 49 | Kure, Kristian (1583) | Lost 1-2 | -161485 |
| 4block | 98 | Muller, Bjorn (1498) | Lost 0-2 | -181467 |
| 5block | 156 | Nuvoli, Cristian (1450) | Won 2-0 | +181485 |
| 6block | 115 | Rizhikov, Pavel (1451) | Lost 1-2 | -191466 |
| top | average opponent: 1500record: 3-3 | new rating: 1466 | ||
| Grand Prix Heidelberg 2002 (TOR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 8 | Schatz, Markus (1500) | Lost 0-2 | -181482 |
| 2sealed | 274 | Mandel, Torsten (1481) | Lost 0-2 | -181464 |
| 3sealed | 379 | Moeller, Alexander (1464) | Won 2-0 | +181482 |
| 4sealed | 279 | Kreher, Christian (1482) | Lost 1-2 | -181464 |
| top | average opponent: 1482record: 1-3 | new rating: 1464 | ||