Gualteros, Sergio
Current rating: 1639
Record: 9-3-1
| Regional Championships Toronto 2023 Cycle 4 (pioneer) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 47 | Jabri, Walid (1500) | Won 2-1 | +181518 |
| 2pioneer | 51 | Cadieux, Alexandre (1568) | Won 2-1 | +191537 |
| 3pioneer | 31 | Nadler, Jared (1537) | Won 2-1 | +181555 |
| 4pioneer | 9 | Aggarwal, Suraj (1558) | Won 2-1 | +181573 |
| 5pioneer | 3 | Legault, Maxime (1745) | Won 2-1 | +211594 |
| 6pioneer | 3 | Pite, Derek (1999) | Won 2-1 | +251619 |
| 7pioneer | 2 | Stein, Mathew (1820) | Lost 1-2 | -141605 |
| 8pioneer | 5 | Gareau, Philippe (2011) | Won 2-1 | +251630 |
| 9pioneer | 1 | Primdahl, Ryan (1673) | Draw 1-1 | +11631 |
| 10pioneer | 3 | Cadieux, Francois (1635) | Won 2-1 | +181649 |
| 11pioneer | 2 | Bouzane, Larry (1732) | Won 2-0 | +191668 |
| 12pioneer | 1 | Dore, Maxime (2046) | Lost 0-2 | -111657 |
| 13pioneer | 3 | Goyet, Jean-Philippe (1694) | Lost 1-2 | -181639 |
| average opponent: 1732record: 9-3-1 | new rating: 1639 | |||