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Individual Calculations March 2020 |
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| Greatorex, Roger Total change: 12.20 | |   |
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| Frodsham Congress 2020 | Frodsham | ENG | 2020-01-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1970 | 1729 | 2.50 | 5 | 1.39 | 20 | 27.80 | |
|  Schult, Ronald | | | 1931 | GER | 0.00 | 1 | -0.24 | 20 | -4.80 | |  Rothwell, James P | | | 1764 | ENG | 1.00 | 1 | 0.55 | 20 | 11.00 | | | Rathbone-Jones, Ifan | | | 1930 | WLS | 1.00 | 1 | 0.76 | 20 | 15.20 | | | Surtees, Mike J | | | 2098 | ENG | 0.50 | 1 | 0.40 | 20 | 8.00 | | | Jackson, Oliver A | f | | 2129 * | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | | | * 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) | | | | 49th Dyfed Open | Fishguard | WLS | 2020-02-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1785 | 1735 | 1.00 | 4 | -0.78 | 20 | -15.60 | |
| | Waddington, Mike P | f | | 2046 | ENG | 0.00 | 1 | -0.14 | 20 | -2.80 | | | Haigh, Tony | | | 1773 | WLS | 0.00 | 1 | -0.45 | 20 | -9.00 | | | Probert, Malcolm | | | 1565 | WLS | 0.50 | 1 | -0.22 | 20 | -4.40 | | | Dixon, Chris | | | 1754 | WLS | 0.50 | 1 | 0.03 | 20 | 0.60 | |
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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