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Individual Calculations October 2013 |
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| Zapata, Alonso Total change: 4.80 | |   |
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| 44th Annual Southern Congress | Decatur, Georgia | USA | 2013-08-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2151 | 2496 | 3.50 | 4 | -0.02 | 10 | -0.20 | |
|  Piper, Alan G | | | 2096 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | |  Francisco, Richard | | | 2259 | USA | 0.50 | 1 | -0.30 | 10 | -3.00 | | | Corallo, Michael P | | | 2153 | USA | 1.00 | 1 | 0.12 | 10 | 1.20 | | | Ghatti, Sanjay | | | 2096 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | 2013 US Masters | Greensboro, North Carolina | USA | 2013-08-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2450 | 2496 | 5.50 | 9 | 0.50 | 10 | 5.00 | |
| | Colas, Joshua | | | 2210 | USA | 1.00 | 1 | 0.16 | 10 | 1.60 | | | Burnett, Ronald W | m | | 2339 | USA | 0.50 | 1 | -0.21 | 10 | -2.10 | | | Chandra, Akshat | f | | 2328 | USA | 1.00 | 1 | 0.28 | 10 | 2.80 | | | Quesada Perez, Y | g | | 2636 | CUB | 1.00 | 1 | 0.69 | 10 | 6.90 | | | Lenderman, Aleksandr | g | | 2527 | USA | 0.50 | 1 | 0.04 | 10 | 0.40 | | | Panjwani, Raja | m | | 2413 | CAN | 1.00 | 1 | 0.39 | 10 | 3.90 | | | Macieja, Bartlomiej | g | | 2595 | POL | 0.00 | 1 | -0.36 | 10 | -3.60 | | | Ramirez, Alejandro | g | | 2588 | USA | 0.00 | 1 | -0.37 | 10 | -3.70 | | | Ostrovskiy, Aleksandr | f | | 2410 | USA | 0.50 | 1 | -0.12 | 10 | -1.20 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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