Barreno, Marco A
Current rating: 1501
Record: 3-3
| Grand Prix San Francisco 2007 (Time Spiral block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 61 | Allsup, Ryan (1500) | Won 2-1 | +181518 |
| 2block | 14 | Robinson, Billy D (1555) | Won 1-0 | +191537 |
| 3block | 88 | Young, Milton (1501) | Lost 1-2 | -191518 |
| 4block | 182 | Dickerson, Adam (1516) | Lost 1-2 | -181500 |
| 5block | 236 | Schmit, Mark (1556) | Won 2-1 | +191519 |
| 6block | 119 | Agenbroad, Brandon C (1518) | Lost 0-2 | -181501 |
| average opponent: 1524record: 3-3 | new rating: 1501 | |||