Ruth, Melvin
Current rating: 1410
Record: 11-17
| Grand Prix Leipzig 2005 (BOK limited) | starting rating: 1415 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 153 | Weller, Tobias (1500) | Lost 0-2 | -161399 |
| 2sealed | 190 | Jirek, Martin (1482) | Lost 0-2 | -171382 |
| 3sealed | 194 | Freitag, Stefan (1468) | Won 2-1 | +201402 |
| 4sealed | 169 | Shaw, Patrick J (1482) | Lost 0-2 | -171385 |
| 5sealed | 183 | Anders, Torsten (1465) | Won 2-1 | +201405 |
| 6sealed | 130 | Vanden Berghe, Jan (1437) | Won 2-1 | +181423 |
| 7sealed | 115 | Teichert, Ernesto (1543) | Lost 1-2 | -151408 |
| 8sealed | 118 | Freining, Heidi (1480) | Won 2-0 | +191427 |
| 9sealed | 81 | Brosch, Cliff (1510) | Lost 0-2 | -171410 |
| top | average opponent: 1485record: 4-5 | new rating: 1410 | ||
| Grand Prix Rimini 2004 (Mirrodin block) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 172 | Larosa, Antonio (1500) | Lost 1-2 | -171451 |
| 2block | 232 | Koptisch, Stefan (1417) | Won 2-1 | +171468 |
| 3block | 134 | Di Saverio, Emanuele (1501) | Lost 1-2 | -171451 |
| 4block | 318 | Piras, Alberto (1447) | Lost 1-2 | -181433 |
| 5block | 305 | Di Blasio, Giuseppe (1451) | Lost 1-2 | -181415 |
| top | average opponent: 1463record: 1-4 | new rating: 1415 | ||
| Grand Prix Munich 2003 (MRD limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 265 | Wagner, Matthias (1428) | Won 2-1 | +171481 |
| 2sealed | 76 | Groothuizen, Matthijs (1482) | Lost 0-2 | -181463 |
| 3sealed | 212 | Carboni, Simone (1608) | Won 2-0 | +211484 |
| 4sealed | 269 | Koptisch, Stefan (1483) | Lost 0-2 | -181466 |
| 5sealed | 233 | Schmidt, Jonathan [DEU] (1498) | Won 2-1 | +181484 |
| 6sealed | 214 | Hoof, Cristian (1523) | Lost 1-2 | -171467 |
| 7sealed | 199 | Hornansky, Richard (1499) | Won 2-1 | +191486 |
| 8sealed | 170 | Zembaty, Michal (1526) | Lost 1-2 | -181468 |
| top | average opponent: 1506record: 4-4 | new rating: 1468 | ||
| Grand Prix London 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 79 | Barbara, Mark (1500) | Lost 0-2 | -181482 |
| 2block | 175 | Janon, Quentin (1481) | Won 2-1 | +181500 |
| 3block | 153 | Kathriner, Roman (1499) | Lost 0-2 | -181482 |
| 4block | 200 | Montandon, Tatiana (1481) | Won 2-0 | +181500 |
| 5block | 180 | Fryer-Kelsey, James (1500) | Lost 0-2 | -181482 |
| 6block | 184 | Trommelen, Jorn (1480) | Lost 0-2 | -181464 |
| top | average opponent: 1490record: 2-4 | new rating: 1464 | ||