Individual Calculations March 2018 |
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Costello, Alexander Total change: -18.00 | | ![Rating chart](/imga/chart.gif) ![Personal card](/imga/card.gif) |
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2018 San Diego Open | San Diego, California | USA | 2018-02-17 |
Rc | Ro | w | n | change | K | K*chg | Game |
2093 | 2163 | 2.50 | 5 | -0.45 | 40 | -18.00 | |
| Bryant, John Daniel | m | | 2457 | USA | 0.00 | 1 | -0.15 | 40 | -6.00 | | Shlyakhtenko, Robert | | | 2051 | USA | 0.50 | 1 | -0.15 | 40 | -6.00 | | Sosa, Nestor | c | | 2110 | PAN | 0.50 | 1 | -0.07 | 40 | -2.80 | | Brown, Wayne B | | | 1998 | USA | 0.50 | 1 | -0.22 | 40 | -8.80 | | McNeill, Gordon | | | 1848 | USA | 1.00 | 1 | 0.14 | 40 | 5.60 | | 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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