Martongelli, Umberto
Current rating: 1521
Record: 7-6
| Grand Prix Strasbourg 2007 (Time Spiral block) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 9 | Wellens, Wilson (1500) | Lost 0-2 | -191500 |
| 3block | 109 | Schindler, Sven (1461) | Won 2-0 | +181518 |
| 4block | 166 | Payen, Laurent (1747) | Lost 0-2 | -141504 |
| 5block | 201 | MATHIEU, Christophe (1499) | Won 2-1 | +181522 |
| 6block | 95 | Ypersiel, Thomas (1474) | Won 2-0 | +171539 |
| 7block | 94 | Simko, Kristian (1534) | Lost 1-2 | -181521 |
| average opponent: 1536record: 3-3 | new rating: 1521 | |||
| Grand Prix Zurich 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 116 | Nysar, Maik (1431) | Won 2-1 | +171517 |
| 2block | 62 | Marinaccio, Roberto (1518) | Lost 0-2 | -181499 |
| 3block | 132 | Ritzmann, Mathias (1493) | Lost 0-2 | -181481 |
| 4block | 227 | Preiss, Christian (1530) | Won 2-1 | +191500 |
| 5block | 174 | Nunez, Carlos (1516) | Won 2-0 | +181518 |
| 6block | 146 | Schwass, Mark (1570) | Won 2-1 | +191537 |
| 7block | 75 | Bacha, Turik (1535) | Lost 1-2 | -181519 |
| average opponent: 1513record: 4-3 | new rating: 1519 | |||