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Mahaffey, Robert
Current rating: 1515

Grand Prix Denver 2017 (HOU standard) starting rating: 1511
round table opponent (rating) result Δrating
3standard 52 Masumoto, Ken (1538) Won 2-1 +191530
4standard 79 Sameisky, Herman (1553) Lost 1-2 -181512
5standard 187 London, Adam (1533) Won 2-1 +191531
6standard 51 Howland, Spencer (1704) Lost 0-2 -151516
7standard 118 Craddock, William (1918) Lost 1-2 -111505
8standard 257 Nguyen, Lee Hung (1596) Won 2-1 +191524
9standard 218 Rubin, Steve (2030) Lost 0-2 -91515
top average opponent: 1696record: 3-4 new rating: 1515

Grand Prix Las Vegas 2017 (legacy) (legacy) starting rating: 1560
round table opponent (rating) result Δrating
3legacy 227 Santomassino, Joseph (1743) Lost 0-2 -151545
4legacy 460 Thiesen, Anders (1493) Lost 0-2 -191526
5legacy 767 Chamberlain, Ben (1716) Lost 1-2 -151511
top average opponent: 1651record: 0-3 new rating: 1511

Grand Prix Louisville 2017 (legacy) starting rating: 1516
round table opponent (rating) result Δrating
3legacy 427 Merriam, Ross (1919) Won 2-0 +251541
4legacy 327 Bianchi, Alex (1832) Won 2-0 +241565
5legacy 321 Majors, Michael (1957) Lost 0-2 -121553
6legacy 403 Atwater, Jaeden (1525) Lost 0-2 -181535
7legacy 510 Martinez, Mario E (1584) Won 2-0 +191554
8legacy 381 Santohir, Daniel (1543) Won 2-1 +181572
9legacy 412 Sommerfield, Christopher (1456) Won 2-0 +151587
10legacy 1078 Sohi, JP (1646) Lost 1-2 -161571
11legacy 1108 Young, Matt (1560) Won 2-0 +171588
12legacy 1113 Kaida-Yip, Ned (1555) Won 2-0 +181606
13legacy 1058 Smith, Donald (1900) Lost 0-2 -131593
14legacy 1069 Tomizawa, Shin (1722) Lost 1-2 -161577
15legacy 1089 Moore, Nick (1588) Lost 0-2 -171560
top average opponent: 1676record: 7-6 new rating: 1560

Grand Prix Denver 2016 (KLD standard) starting rating: 1586
round table opponent (rating) result Δrating
3standard 116 Hull, Ben (1850) Lost 0-2 -141572
4standard 422 Pippenger, Michael (1466) Lost 1-2 -201552
5standard 577 Bardier, Daniel (1551) Lost 0-0 -181534
6standard 508 Williams, Benjamin (1537) Lost 0-2 -181516
top average opponent: 1601record: 0-4 new rating: 1516

Grand Prix Columbus 2016 (legacy) starting rating: 1527
round table opponent (rating) result Δrating
2legacy 245 Jacques, Billy (1435) Won 2-0 +161543
3legacy 72 Semeyn, Jonathan (1493) Won 2-1 +171560
4legacy 152 Smith, Darren (1546) Lost 0-2 -181542
5legacy 191 McVety, Max (2001) Lost 0-2 -101532
6legacy 461 Lee, Jeffrey (1505) Won 2-1 +171549
7legacy 178 Chen, Shawn (1472) Lost 0-2 -191530
8legacy 424 Li, Jinlin (1654) Won 2-0 +201550
9legacy 265 Derczo, Michael (1882) Won 2-0 +241574
10legacy 139 Chow, Matthew (1693) Won 2-1 +201594
11legacy 156 Baugh, Jacob (1841) Lost 0-2 -141580
12legacy 142 Horn, Michael (1559) Won 2-0 +181598
13legacy 160 Leek, Gary (1515) Lost 1-2 -191579
14legacy 166 Johnson, Adam (1717) Won 2-0 +201599
15legacy 122 Folinus, Jeff (1858) Lost 0-2 -131586
top average opponent: 1655record: 8-6 new rating: 1586

Grand Prix Los Angeles 2016 (modern) starting rating: 1504
round table opponent (rating) result Δrating
1modern 135 Zhao, Steve (1500) Won 2-0 +181522
2modern 283 Henderson, Steven (1518) Won 2-1 +181540
3modern 405 Pordes, Casey (1730) Won 2-1 +211561
4modern 230 Nunes Jr, Greg (1495) Lost 1-2 -191542
5modern 181 Barajas, Jose (1534) Won 2-0 +181560
6modern 169 Van Brocklin, Hunter (1530) Lost 1-2 -191541
7modern 295 Benavides, Armando-Jose (1548) Lost 0-2 -181523
8modern 402 Morton, Evan (1564) Lost 0-2 -171506
9modern 468 Havens, Caleb (1654) Won 2-0 +211527
top average opponent: 1564record: 5-4 new rating: 1527

Grand Prix Albuquerque 2016 (SOI limited) starting rating: 1482
round table opponent (rating) result Δrating
1sealed 261 Boody, David (1500) Won 2-1 +191501
2sealed 141 Grine, Gary (1514) Won 2-0 +181519
3sealed 155 Duerst, Kyle (1487) Lost 1-2 -191500
4sealed 286 Thelin, Cyrus (1483) Lost 1-2 -181482
5sealed 389 Schulte, Michael (1297) Won 2-0 +151497
6sealed 241 Burke, Joshua (1460) Won 2-1 +171514
7sealed 182 Henner, Aaron (1748) Lost 0-2 -141500
8sealed 295 Burch, Jacob (1608) Won 2-0 +201520
9sealed 139 Page, Jonathan (1613) Lost 1-2 -161504
top average opponent: 1523record: 5-4 new rating: 1504

Grand Prix Seattle-Tacoma 2015 (legacy) starting rating: 1500
round table opponent (rating) result Δrating
1legacy 88 Bose, Arjune (1515) Lost 0-2 -181482
top record: 0-1 new rating: 1482