Bommer, Jay
Current rating: 1428
Record: 9-15 (GP) / 4-3 (professional)
| Grand Prix Hanover 2009 (extended) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 521 | Merlet, Cedric (1577) | Lost 1-2 | -161465 |
| 2extended | 530 | Klein, Dieter (1481) | Lost 1-2 | -181447 |
| 3extended | 598 | Stange, Florian (1413) | Won 2-1 | +171464 |
| 4extended | 572 | Khodasevich, Egor (1484) | Lost 1-2 | -171447 |
| 5extended | 604 | Hajek, Tomas (1417) | Lost 0-2 | -191428 |
| top | average opponent: 1474record: 1-4 | new rating: 1428 | ||
| Grand Prix Copenhagen 2005 (extended) | starting rating: 1496 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 82 | Varady, Balazs (1533) | Lost 1-2 | -171479 |
| 2extended | 90 | Gerrits, Marcel (1432) | Won 2-1 | +171496 |
| 3extended | 60 | Ukskoski, Marko (1634) | Lost 0-2 | -151481 |
| top | average opponent: 1533record: 1-2 | new rating: 1481 | ||
| Grand Prix Hamburg 2002 (Odyssey block) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 207 | Szillat, Florian (1501) | Lost 0-2 | -161415 |
| 2block | 204 | Henselmans, Jorn (1482) | Won 2-0 | +191434 |
| 3block | 99 | Madsen, Lau (1498) | Won 2-1 | +191453 |
| 4block | 134 | Schraut, Andreas (1688) | Won 2-1 | +221475 |
| 5block | 65 | Ionescu, Eugen (1487) | Won 2-1 | +191494 |
| 6block | 58 | Folkerts, Arend (1545) | Won 2-1 | +181512 |
| 7block | 51 | Siron, Geoffrey (1620) | Lost 1-2 | -161496 |
| top | average opponent: 1546record: 5-2 | new rating: 1496 | ||
| Grand Prix London 2002 (Odyssey block) | starting rating: 1444 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 45 | Thearle, Roy (1464) | Won 2-1 | +191463 |
| 2block | 101 | Peset, Alexandre (1615) | Won 2-0 | +211484 |
| 3block | 28 | Dolstra, Menno (1566) | Lost 1-2 | -171467 |
| 4block | 98 | Schepputat, Bjorn (1468) | Lost 1-2 | -181449 |
| 5block | 176 | Richard, Otto (1472) | Lost 0-2 | -181431 |
| top | average opponent: 1517record: 2-3 | new rating: 1431 | ||
| Grand Prix Vienna 1999 (extended) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 32 | Navratil, Martin (1500) | Lost 0-0 | -191499 |
| 2extended | 124 | Magdic, Alen (1482) | Lost 0-0 | -181481 |
| 3extended | 168 | Petersen, Jens (1464) | Lost 0-0 | -181463 |
| 4extended | 164 | Wetzl, Roland (1446) | Lost 0-0 | -191444 |
| top | average opponent: 1473record: 0-4 | new rating: 1444 | ||
| Pro Tour Los Angeles 1998 (Tempest block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 97 | Sochon, Michael (1500) | Lost 0-0 | -181482 |
| 2block | 136 | Buckingham, Chris (1482) | Won 0-0 | +181500 |
| 3block | 64 | Hubble, Bryan (1500) | Lost 0-0 | -181482 |
| 4block | 125 | Immordino, John (1482) | Won 0-0 | +181500 |
| 5block | 68 | Leader, David (1482) | Won 0-0 | +181518 |
| 6block | 55 | Antill, Brett (1518) | Won 0-0 | +181536 |
| 7block | 38 | Gallitz, Donald (1536) | Lost 0-0 | -181518 |
| top | average opponent: 1500record: 4-3 | new rating: 1518 | ||