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Sierra, David
Current rating: 1507

Grand Prix Bilbao 2013 (modern) starting rating: 1507
round table opponent (rating) result Δrating
1modern 71 Martin, Jonathan (1541) Lost 1-2 -181489
2modern 328 Lacroix, Alban (1484) Lost 0-2 -181471
3modern 415 Rubi, Oscar (1464) Won 2-0 +181489
4modern 425 Dapia Silva, Miguel An (1465) Won 2-0 +181507
5modern 250 Brown, Eric (1514) Won 2-0 +181525
6modern 214 Martinez Castro, Aleja (1517) Lost 0-2 -181507
top average opponent: 1497record: 3-3 new rating: 1507

Grand Prix Lyon 2012 (modern) starting rating: 1555
round table opponent (rating) result Δrating
4modern 83 Lachaud, Remy (1592) Lost 1-2 -181537
5modern 65 Sciesinski, Marcin (1739) Lost 1-2 -141523
6modern 200 Been, Iso (1624) Lost 0-2 -161507
top average opponent: 1652record: 0-3 new rating: 1507

Grand Prix Barcelona 2009 (ARB standard) starting rating: 1577
round table opponent (rating) result Δrating
1standard 622 Raminez, Isaac (1500) Won 2-0 +161593
2standard 409 Iglesias, Virgilio (1502) Lost 1-2 -191574
3standard 608 Bottecchia, Gabriele (1512) Lost 0-2 -191555
top average opponent: 1505record: 1-2 new rating: 1555

Grand Prix Madrid 2008 (EVE limited) starting rating: 1559
round table opponent (rating) result Δrating
2sealed 172 Vila, Ferran (1600) Draw 1-1 01559
3sealed 118 Carrascosa, Juan Miguel (1499) Won 2-0 +171576
4sealed 84 Quintana, Lain (1526) Won 2-0 +171593
5sealed 40 Salas Martinez, Sergio (1687) Won 2-0 +201613
6sealed 24 Martins, Julio (1522) Lost 0-2 -201593
7sealed 62 Camacho, Francisco Javier (1538) Won 2-0 +171610
8sealed 35 Biessmann, Oliver (1697) Won 2-1 +201630
9sealed 19 Camacho, Manuel (1621) Won 2-1 +181648
10draft 29 De Coster, Jan (1649) Lost 0-2 -181630
11draft 61 Gonzalez Hidalgo, Francisco Jose (1576) Lost 1-2 -191611
12draft 53 Gandara Alonso, Carlos (1604) Lost 1-2 -181593
13draft 21 Martos, Antonio (1560) Won 2-0 +171610
14draft 36 Joska, Tomas (1723) Lost 1-2 -161594
15draft 51 Renedo, Rodrigo (1629) Lost 0-2 -171577
top average opponent: 1602record: 7-6-1 new rating: 1577

Grand Prix Barcelona 2006 (GPT limited) starting rating: 1560
round table opponent (rating) result Δrating
1sealed 198 Plans, Aram (1463) Won 0-0 +161576
2sealed 40 Arrieta, Kepa (1466) Lost 0-2 -201556
3sealed 121 Seck, Ben (1732) Won 2-1 +221578
4sealed 120 Subiela Moreno, Jose (1536) Won 2-0 +171595
5sealed 103 Huard, Denis (1620) Lost 0-2 -181577
6sealed 116 Florit, Dani (1540) Lost 0-2 -181559
top average opponent: 1560record: 3-3 new rating: 1559

Grand Prix Madrid 2004 (DST limited) starting rating: 1620
round table opponent (rating) result Δrating
2sealed 321 Callejas, Jesus (1518) Lost 0-2 -201600
3sealed 390 Venegas, Fernando (1462) Lost 1-2 -211579
4sealed 382 Francisco, German (1523) Lost 1-2 -191560
top average opponent: 1501record: 0-3 new rating: 1560

Grand Prix Lyon 2003 (MRD limited) starting rating: 1678
round table opponent (rating) result Δrating
4sealed 44 Dato, Federico (1628) Lost 1-2 -191659
5sealed 144 Castanier, Emmanuel (1577) Lost 0-2 -191640
6sealed 245 Desmaris, Etienne (1523) Lost 0-2 -201620
top average opponent: 1576record: 0-3 new rating: 1620

Grand Prix Genoa 2003 (Onslaught block) starting rating: 1621
round table opponent (rating) result Δrating
1block 86 Fontana, Davide (1500) Won 2-1 +161637
2block 16 Gerresheim, Lorenzo (1500) Won 2-0 +151652
3block 29 Pirzl, Daniel (1535) Won 2-0 +161668
4block 35 Dumontaud, Luc (1612) Lost 1-2 -191649
5block 117 Kofler, Kurt (1536) Won 2-0 +161665
6block 65 Agostini, Giovanni (1613) Lost 0-2 -191646
7block 59 Kagawa, Mido (1520) Won 2-0 +161662
8block 57 Cirigliano, Matteo (1570) Won 2-0 +161678
top average opponent: 1548record: 6-2 new rating: 1678

Grand Prix Barcelona 2002 (TOR limited) starting rating: 1665
round table opponent (rating) result Δrating
4sealed 67 Herrero, Sergi (1554) Lost 0-2 -201645
5sealed 136 Sacedon Ayuso, Luis (1398) Won 2-0 +131658
6sealed 64 Tan, Iwan (1731) Lost 1-2 -161642
7sealed 94 Fdez. De Bobadilla, Diego (1486) Lost 1-2 -211621
top average opponent: 1542record: 1-3 new rating: 1621

Grand Prix Biarritz 2001 (ODY limited) starting rating: 1627
round table opponent (rating) result Δrating
1sealed 64 Mas, Arkaitz (1500) Won 2-0 +161643
2sealed 91 Ruiz, Jose-Luis (1518) Won 2-0 +161659
3sealed 64 Bornarel, Nicolas (1572) Draw 1-1 -21657
4sealed 56 hucol, thomas (1535) Won 2-0 +161673
5sealed 28 Duarte, Joao (1529) Lost 0-2 -211652
6sealed 65 Leloup, Damien (1568) Lost 0-2 -191633
7sealed 106 Pouleau, Fabien (1520) Won 2-0 +161649
8sealed 72 Rodriguez, Pablo 2 (1536) Won 2-0 +161665
top average opponent: 1535record: 5-2-1 new rating: 1665

Grand Prix Valencia 2001 (PLS limited) starting rating: 1612
round table opponent (rating) result Δrating
1sealed 126 Dominguez, Miguel (1500) Won 2-0 +161628
2sealed 77 Feliu, Boro (1518) Won 2-1 +161644
3sealed 18 Tuduri, Ricard (1575) Lost 0-2 -191625
4sealed 74 Perez Fresnedo, Javier (1536) Won 2-1 +161641
5sealed 44 Pustilnik, Michael (2084) Lost 0-2 -101631
6sealed 81 Navarro, Eladio (1517) Won 2-1 +161647
7sealed 67 Perez, Raul [ESP] (1566) Lost 0-2 -201627
top average opponent: 1614record: 4-3 new rating: 1627

Pro Tour Chicago 2000 (INV standard) starting rating: 1610
round table opponent (rating) result Δrating
2standard 63 Kibler, Brian (1701) Lost 0-2 -161594
3standard 84 Magid, Jeffrey (1477) Lost 0-2 -201574
4standard 101 Sadeghpour, Johan (1663) Won 2-1 +201594
5standard 61 Perez, Aaron (1570) Won 2-0 +171611
6standard 55 Igawa, Yoshihiro (1561) Won 2-1 +171628
7standard 49 Fear, Edward (1740) Lost 1-2 -161612
top average opponent: 1619record: 3-3 new rating: 1612

Grand Prix Porto 2000 (PCY limited) starting rating: 1563
round table opponent (rating) result Δrating
1sealed 58 Vidal, Ricardo (1500) Won 2-0 +171580
2sealed 21 Tavira Manjon, Juan (1518) Won 2-0 +171597
3sealed 28 Ishii, Kuniyoshi (1536) Won 2-0 +171614
4sealed 26 Braga, Ricardo (1554) Lost 0-0 -201594
5sealed 56 Hidalgo, Daniel (1598) Lost 1-2 -181576
6sealed 109 Valente, Ivo (1518) Won 2-0 +171593
7sealed 77 Goncalves, Gabriel (1536) Won 2-0 +171610
top average opponent: 1537record: 5-2 new rating: 1610

Grand Prix Madrid 2000 (extended) starting rating: 1463
round table opponent (rating) result Δrating
1extended 9 LaGuardia, Jesus (1500) Won 2-0 +191482
2extended 46 Romero, Hugo (1518) Won 2-1 +191501
3extended 19 Julve, Javier (1536) Lost 0-2 -181483
4extended 66 Garcia Murillo, Sergio (1520) Won 2-1 +191502
5extended 45 Martinez, Luis Ruben (1536) Won 2-0 +191521
6extended 14 Buj Llorca, Oscar (1581) Won 2-0 +191540
7extended 16 Vicente Diaz, Daniel (1550) ID 01540
8extended 13 Bui, Lucien (1578) Lost 0-2 -181522
9extended 23 Benages, Alfred (1497) Won 1-0 +181540
10extended 14 Vila, Ferran (1518) Won 2-1 +181558
11extended 10 Barbosa, Andre (1573) Draw 1-1 01558
12extended 13 Rincon, Eufemio (1608) Won 2-1 +191577
13extended 8 Dobson, Tony (1807) Lost 1-2 -141563
top average opponent: 1563record: 8-3-2 new rating: 1563

Grand Prix Barcelona 1999 (USG sealed) starting rating: 1500
round table opponent (rating) result Δrating
2sealed 169 Gracia, Alberto (1500) Won 0-0 +181518
3sealed 107 Schlegl, Gerhard (1482) Lost 0-0 -191499
4sealed 144 Abarca, Ivan (1500) Lost 0-0 -181481
5sealed 165 Merida, Ismael (1482) Lost 0-0 -181463
top average opponent: 1491record: 1-3 new rating: 1463