Ball, David H
Current rating: 1608
Record: 23-24-1 (GP) / 18-14-2 (professional)
| Grand Prix London 2015 (ORI standard) | starting rating: 1640 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 407 | Schwartz, Dylan (1500) | Won 2-0 | +151655 |
| 2standard | 81 | Wightman, Robert (1463) | Lost 1-2 | -211634 |
| 3standard | 319 | Torbitt, Robin (1503) | Won 2-0 | +151649 |
| 4standard | 240 | Whyte, Ailsa (1439) | Lost 0-2 | -211628 |
| 5standard | 243 | Pacholek, Marek (1536) | Lost 0-2 | -201608 |
| top | average opponent: 1488record: 2-3 | new rating: 1608 | ||
| Grand Prix Brighton 2009 (M10 limited) | starting rating: 1708 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 126 | Nunn, Richard (1708) | Lost 1-2 | -181690 |
| 3sealed | 162 | King, James G (1531) | Lost 0-2 | -211669 |
| 4sealed | 276 | Rodway, Joe J (1482) | Won 2-0 | +151684 |
| 5sealed | 275 | Bateman, Christian (1484) | Lost 0-2 | -221662 |
| 6sealed | 249 | Van Doorsselaere, Sam (1407) | Lost 0-2 | -221640 |
| top | average opponent: 1522record: 1-4 | new rating: 1640 | ||
| Grand Prix Genoa 2003 (Onslaught block) | starting rating: 1725 | |||
| round | table | opponent (rating) | result | Δrating |
| 3block | 94 | Soum, Julien (1642) | Won 2-1 | +171742 |
| 4block | 19 | Barth, Fabian (1500) | Lost 0-2 | -221720 |
| 5block | 96 | Mourad, Chalala (1607) | Lost 1-2 | -201700 |
| 6block | 141 | Balducci, Francesco (1520) | Won 2-0 | +141714 |
| 7block | 113 | Graefling, Beat (1554) | Won 2-1 | +151729 |
| 8block | 32 | Barbera, Giuseppe (1551) | Lost 1-2 | -211708 |
| top | average opponent: 1562record: 3-3 | new rating: 1708 | ||
| Grand Prix London 2003 (Onslaught block) | starting rating: 1633 | |||
| round | table | opponent (rating) | result | Δrating |
| 3block | 69 | Haberkorn, Pascal (1614) | Lost 0-2 | -181615 |
| 4block | 85 | Smith, Craig (1527) | Won 2-0 | +161631 |
| 5block | 67 | van den Broek, Victor (1776) | Won 2-0 | +211652 |
| 6block | 63 | Wolf, Jurgen (1690) | Won 2-1 | +181670 |
| 7block | 35 | Polley, David (1577) | Won 2-0 | +171687 |
| 8block | 9 | Kolb, Markus (1737) | ID | 01687 |
| 9block | 10 | de Diego, Pedro (1580) | Won 2-0 | +161703 |
| 10block | 12 | Reinderman, Dimitri (1640) | Won 2-1 | +171720 |
| 11block | 5 | Karsten, Frank (1885) | Lost 0-2 | -151705 |
| 12block | 10 | Nygaard, Nikolas (1773) | Won 2-1 | +191724 |
| 13block | 6 | Rider, Josh (1792) | Lost 0-2 | -171707 |
| 14block | 12 | Costa, Nuno (1732) | Won 2-1 | +181725 |
| top | average opponent: 1694record: 8-3-1 | new rating: 1725 | ||
| 2003 European Championship (mixed) | starting rating: 1661 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 58 | Cerasari, Andrea (1519) | Lost 0-2 | -201641 |
| 2standard | 132 | Veral, Eray (1322) | Lost 0-2 | -241617 |
| 3standard | 105 | Curti, Andrea (1529) | Won 2-1 | +171634 |
| 4rochester | 9 | Milinkovic, Milos (1488) | Won 2-0 | +151649 |
| 5rochester | 77 | Aperghis, Dimitris (1584) | Lost 0-2 | -191630 |
| 6rochester | 102 | van de Logt, Tom (1800) | Won 2-1 | +211651 |
| 7rochester | 81 | Meraghni, Farid (1653) | Lost 1-2 | -181633 |
| top | average opponent: 1557record: 3-4 | new rating: 1633 | ||
| Pro Tour Venice 2003 (Onslaught block) | starting rating: 1530 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 15 | Dabkowski, Mateusz (1481) | Lost 1-2 | -191511 |
| 2block | 100 | Edbury, Richard (1688) | Won 2-0 | +211532 |
| 3block | 54 | Fischer, Adam (1631) | Lost 1-2 | -161516 |
| 4block | 113 | DeTora, Melissa (1688) | Won 2-0 | +211537 |
| 5block | 69 | Ognibene, Giovanni Maria (1570) | Won 2-1 | +191556 |
| 6block | 72 | Chan, Tiago (1746) | Won 2-0 | +211577 |
| 7block | 33 | Talim, Gary (1699) | ID | 01577 |
| 8block | 41 | Brucker, David (2058) | Won 2-0 | +261603 |
| 9block | 14 | Hassaku, Jinpei (1797) | Won 2-1 | +221625 |
| 10block | 16 | Vollebregt, Joost (1915) | Lost 0-2 | -131612 |
| 11block | 23 | Caumes, Benjamin (1960) | Won 2-1 | +241636 |
| 12block | 12 | Karsten, Frank (1748) | Won 2-1 | +201656 |
| 13block | 13 | Mitsuya, Kazuhiko (1873) | Lost 0-2 | -141642 |
| 14block | 14 | Barbero, Jose (1733) | Won 2-0 | +191661 |
| top | average opponent: 1756record: 9-4-1 | new rating: 1661 | ||
| Pro Tour Houston 2002 (extended) | starting rating: 1529 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 81 | Fischer, Adam (1628) | Won 2-0 | +201549 |
| 2extended | 52 | Dougherty, Robert (1985) | Draw 1-1 | +81557 |
| 3extended | 43 | Cunningham, Jeff (1994) | Lost 0-2 | -111546 |
| 4extended | 85 | Chadha, Carlos (1633) | Won 2-1 | +201566 |
| 5extended | 54 | Cuomo, Dario (1600) | Lost 0-2 | -181548 |
| 6extended | 88 | Madsen, Kenneth (1498) | Draw 1-1 | -11547 |
| 7extended | 90 | Shuldiner, Allan (1560) | Lost 0-2 | -171530 |
| top | average opponent: 1700record: 2-3-2 | new rating: 1530 | ||
| Grand Prix London 2002 (Odyssey block) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 36 | Bertelsen, Daniel Smits (1682) | Won 2-1 | +211518 |
| 3block | 51 | McClare, Alastair (1536) | Lost 0-2 | -171501 |
| 4block | 117 | Jenkins, Dan (1503) | Draw 1-1 | 01501 |
| 5block | 153 | Lacan, Eric (1478) | Won 2-1 | +171518 |
| 6block | 93 | Loh, Mark (1547) | Won 2-1 | +191537 |
| 7block | 60 | Johannsen, Dennis (1554) | Won 2-1 | +181555 |
| 8block | 34 | Burden, Christopher (1598) | Won 2-0 | +191574 |
| 9block | 29 | Ranque, Wilfried (1723) | Won 2-1 | +211595 |
| 10block | 17 | Minieri, Dario (1857) | Lost 0-2 | -141581 |
| 11block | 23 | Shinkins, Stewart (1727) | Lost 1-2 | -151566 |
| 12block | 23 | Fries, Stefan (1517) | Lost 0-2 | -191547 |
| 13block | 29 | Easton, Steve (1565) | Lost 0-2 | -181529 |
| top | average opponent: 1607record: 6-5-1 | new rating: 1529 | ||
| Pro Tour San Diego 2002 (ODY rochester) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1rochester | 12 | Krakower, Gary (1742) | Won 2-1 | +231487 |
| 2rochester | 135 | Canu, Franck (1732) | Lost 1-2 | -141473 |
| 3rochester | 40 | Reid, Kyle (1616) | Lost 0-2 | -151458 |
| 4rochester | 155 | Hoffman, Ryan (1487) | Won 2-0 | +181476 |
| 5rochester | 17 | Sigrist, Mike (1633) | Lost 0-2 | -151461 |
| 6rochester | 54 | Vogelheim, Thorsten (1478) | Won 2-1 | +181479 |
| 7rochester | 101 | Harper, Matthew (1470) | Won 2-0 | +181497 |
| top | average opponent: 1594record: 4-3 | new rating: 1497 | ||
| Grand Prix London 2001 (Invasion block) | starting rating: 1451 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 134 | Moore, Stephen (1500) | Won 2-0 | +191470 |
| 2block | 53 | Verhulst, Johan (1559) | Won 2-1 | +201490 |
| 3block | 38 | Ormerod, John (2032) | Lost 0-2 | -91481 |
| 4block | 109 | O'Donnell, Tim (1411) | Won 2-1 | +171498 |
| 5block | 62 | Schneiders, Felix (1538) | Lost 0-2 | -181480 |
| 6block | 119 | Devos, Carl (1555) | Lost 0-2 | -161464 |
| top | average opponent: 1599record: 3-3 | new rating: 1464 | ||
| Grand Prix Manchester 2000 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 4 | O'Mahoney-Schwartz, Steven (1770) | Lost 1-2 | -131487 |
| 5sealed | 52 | Prosper, Philippe (1462) | Lost 1-2 | -191468 |
| 6sealed | 57 | Burden, Christopher (1521) | Lost 0-2 | -171451 |
| top | average opponent: 1584record: 0-3 | new rating: 1451 | ||