Bertelsen, Peter
Current rating: 1459
| Grand Prix Copenhagen 2017 (modern) | starting rating: 1576 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 502 | Pedersen, Brian (1500) | Won 2-1 | +171593 |
| 2modern | 208 | Rouw, Alex (1632) | Lost 0-2 | -171576 |
| 3modern | 500 | Griner, Zachary (1554) | Lost 1-2 | -191557 |
| 4modern | 615 | Fernandez Martin, Tomas (1475) | Lost 0-2 | -191538 |
| 5modern | 830 | Kroger, Jana Katherina (1422) | Lost 1-2 | -201518 |
| 6modern | 796 | Steed, Cameron (1389) | Lost 0-2 | -211497 |
| 7modern | 736 | Graulund, Alexander (1425) | Lost 1-2 | -191478 |
| 8modern | 654 | Mortsjo, Kristoffer (1407) | Lost 0-2 | -191459 |
| top | average opponent: 1476record: 1-7 | new rating: 1459 | ||
| Grand Prix Brussels 2010 (WWK standard) | starting rating: 1524 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 54 | Tammes, Roeland (1482) | Lost 0-2 | -191505 |
| 2standard | 314 | Bergia, David (1393) | Won 2-0 | +161521 |
| 3standard | 257 | Bilek, Tomas (1496) | Won 2-0 | +181539 |
| 4standard | 123 | Deckers, Michael (1518) | Won 2-0 | +181557 |
| 5standard | 171 | Menke, Markus (1543) | Lost 0-2 | -191538 |
| 6standard | 188 | Bisschops, Mark (1516) | Won 2-0 | +181556 |
| 7standard | 129 | Wageningen, Mathijs (1642) | Lost 0-2 | -171539 |
| 8standard | 150 | Altensen, Tim (1576) | Won 2-1 | +191558 |
| 9standard | 112 | Friedrich, Martin (1563) | Won 2-1 | +181576 |
| top | average opponent: 1525record: 6-3 | new rating: 1576 | ||
| Grand Prix Copenhagen 2008 (EVE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 161 | Andersen, Mark (1485) | Won 2-1 | +181518 |
| 2standard | 64 | Vrist-jensen, Peter (1518) | Won 2-1 | +181536 |
| 3standard | 35 | Zuber, Wojciech (1675) | Lost 0-2 | -161520 |
| 4standard | 136 | D'Angella, Stefano (1692) | Won 2-1 | +211541 |
| 5standard | 113 | Nielsen, Yan K. (1537) | Lost 1-2 | -181523 |
| 6standard | 106 | Zimmermann, Raoul (1572) | Won 2-0 | +191542 |
| 7standard | 131 | Friedrich, Martin (1522) | Won 2-1 | +181560 |
| 8standard | 79 | Christensen, Oscar (1569) | Lost 0-2 | -181542 |
| 9standard | 87 | Lefterov, Alexander (1555) | Lost 0-2 | -181524 |
| top | average opponent: 1569record: 5-4 | new rating: 1524 | ||