Jakobs, John
Current rating: 1615
Record: 10-4-1
| Grand Prix Calgary 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 294 | Ralph, Jesse (1519) | Won 2-0 | +181518 |
| 2modern | 79 | Stuart, Ian (1518) | Won 2-1 | +181536 |
| 3modern | 8 | Tuff, Clinton (1471) | Won 2-0 | +171553 |
| 4modern | 3 | Miller, Les (1683) | Won 2-1 | +211574 |
| 5modern | 30 | Lysenko, Jesse (1560) | Lost 0-2 | -191555 |
| 6modern | 56 | Mrakava, Brooke (1553) | Won 2-0 | +181573 |
| 7modern | 15 | Kirkland, Matt (1524) | Lost 0-2 | -191554 |
| 8modern | 70 | Hankins, Steven (1572) | Won 2-0 | +191573 |
| 9modern | 51 | Remple, Zachary (1577) | Won 2-1 | +181591 |
| 10modern | 43 | Kelly, Mathew (1517) | Lost 1-2 | -201571 |
| 11modern | 61 | Sly, John (1595) | Won 2-1 | +191590 |
| 12modern | 30 | Brunson, Damyan (1839) | Won 2-1 | +221612 |
| 13modern | 13 | Paquette, Andre (1600) | Draw 1-1 | 01612 |
| 14modern | 23 | Hetherington, Sean (1688) | Lost 1-2 | -171595 |
| 15modern | 36 | Whitsitt, Ryan (1700) | Won 2-0 | +201615 |
| average opponent: 1594record: 10-4-1 | new rating: 1615 | |||