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Preston, Derek
Current rating: 1672

Grand Prix Cincinnati 2014 (BNG standard) starting rating: 1666
round table opponent (rating) result Δrating
2standard 290 Yeh, Chih-Cheng (1500) Won 2-0 +151681
3standard 303 Johnson, Jon (1725) Lost 1-2 -181663
4standard 295 Bernat, Michael (1769) Won 2-0 +201683
5standard 173 Tetley, Brett (1526) Won 2-0 +161699
6standard 103 Nguyen, Thien 2 (1520) Lost 1-2 -221677
7standard 160 Morrow, Andrew (1505) Won 2-0 +151692
8standard 135 Newman, James (1555) Lost 0-2 -201672
top average opponent: 1586record: 4-3 new rating: 1672

Grand Prix Richmond 2014 (modern) starting rating: 1648
round table opponent (rating) result Δrating
1modern 1316 Pace, Joshua (1500) Won 2-0 +151663
2modern 1270 Lyons, Greg (1518) Lost 1-2 -211642
3modern 1318 Spezzo, Vincent (1557) Won 2-1 +171659
4modern 1258 Hovey, Dylan (1517) Lost 0-2 -211638
5modern 1491 Samant, Thomas (1498) Won 2-0 +161654
6modern 1317 Poirier, Steven (1571) Won 2-1 +161670
7modern 1246 Kumiega, Sophie (1536) Won 2-1 +161686
8modern 1079 Wurzer, Mike (1573) Lost 0-2 -201666
top average opponent: 1534record: 5-3 new rating: 1666

Grand Prix Indianapolis 2012 (legacy) starting rating: 1599
round table opponent (rating) result Δrating
1legacy 196 Wood, Mark (1500) Won 2-1 +161615
2legacy 197 Kluck, Aaron (1467) Won 2-0 +151630
3legacy 163 Jones, Nathan [USA] (1518) Won 1-0 +161646
4legacy 68 Antonova, Nadja (1584) Lost 1-2 -191627
5legacy 203 Arnoldy, Brian (1578) Won 1-0 +171644
6legacy 59 Leonard, James R (1553) Won 1-0 +171661
7legacy 85 Kibler, Brian (2027) Lost 1-2 -121649
8legacy 142 Xu, Jake (1551) Won 2-1 +161665
9legacy 104 Eason, Anthony (1689) Lost 1-2 -171648
top average opponent: 1608record: 6-3 new rating: 1648

Grand Prix Pittsburgh 2011 (M12 standard) starting rating: 1624
round table opponent (rating) result Δrating
2standard 92 Pease, Nate (1646) Lost 0-2 -171607
3standard 235 Troutman, Robert J (1500) Lost 0-2 -201587
4standard 508 Baugh, michael (1482) Won 2-1 +161603
5standard 358 Ingram, Tommy (1431) Won 2-0 +151618
6standard 416 Allulis, Chris (1563) Lost 0-2 -191599
top average opponent: 1524record: 2-3 new rating: 1599

Grand Prix Columbus 2010 (legacy) starting rating: 1591
round table opponent (rating) result Δrating
2legacy 92 Page, Chad (1463) Won 2-1 +161607
3legacy 55 McDaniel, Chris (1668) Lost 0-2 -171590
4legacy 152 Alvarez, Louis (1482) Won 2-0 +161606
5legacy 53 Fuentes, Calosso (1713) Lost 0-2 -161590
6legacy 108 Bradford, Austin (1466) Won 2-0 +161606
7legacy 121 Blough, Alex (1631) Won 2-0 +181624
8legacy 46 Rodriguez, Juan C (1617) Won 2-1 +181642
9legacy 41 Bramlett, Nathan (1665) Lost 1-2 -181624
top average opponent: 1588record: 5-3 new rating: 1624

Grand Prix Washington DC 2010 (ROE standard) starting rating: 1500
round table opponent (rating) result Δrating
4standard 37 Griffin, Matthew [USA] (1500) Lost 0-2 -181482
5standard 107 Yu, Johnny (1538) Won 2-0 +191501
6standard 41 Wiedemann, Grant (1559) Lost 0-2 -171484
7standard 143 Mahar, Chris (1492) Won 2-0 +181502
8standard 61 Massimino, Cory (1557) Won 2-1 +191521
9standard 29 Tong, Wu (1667) Won 2-0 +211542
10standard 99 Held, Eric J (1603) Lost 1-2 -171525
11standard 99 Pawlik, Ryan (1560) Lost 1-2 -171508
12standard 90 Fedun, Matthew (1525) Won 2-1 +181526
13standard 85 Kadooka, Toshiyuki (1815) Won 2-0 +231549
14standard 57 Buckingham, James (1759) Lost 1-2 -141535
15standard 66 Archer, Joshua (1583) Won 2-0 +191554
16standard 47 Csampai, Peter (1597) Won 2-1 +191573
17standard 50 McGrath, Colin (1599) Won 2-1 +181591
top average opponent: 1597record: 9-5 new rating: 1591