Individual Calculations June 2023 |
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Phelps, David B Total change: -20.80 | | ![Rating chart](/imga/chart.gif) ![Personal card](/imga/card.gif) |
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3rd annual Niagara Falls Open - U2000 | Niagara Falls, NY | USA | 2023-05-05 |
Rc | Ro | w | n | change | K | K*chg | Game |
1554 | 1915 | 2.50 | 4 | -1.04 | 20 | -20.80 | |
| O`neil, Michael | | | 1544 | CAN | 1.00 | 1 | 0.10 | 20 | 2.00 | | Sreekumar, Gauri | | | 1515 * | CAN | 0.50 | 1 | -0.42 | 20 | -8.40 | | Wu, Ting En Ryan | | | 1451 | CAN | 1.00 | 1 | 0.05 | 20 | 1.00 | | Wang, Chloe Heather | | | 1705 | USA | 0.00 | 1 | -0.77 | 20 | -15.40 | | * 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) | |
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