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Rapid:
Individual Calculations January 2023 |
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| Harris, Callum Total change: 70.80 | |   |
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| Coulsdon Juniors - Club Championships - December 2022 - Premiership | Coulsdon | ENG | 2022-11-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1081 | 1281 | 1.00 | 1 | 0.24 | 40 | 9.60 | |
|  Rajapaksha, Tinusha | | | 1081 | ENG | 1.00 | 1 | 0.24 | 40 | 9.60 | |
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) | | | | Coulsdon Juniors Christmas 2022 Round Robins - Level 4 | Coulsdon | ENG | 2022-12-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1176 | 1272 | 3.00 | 4 | 0.51 | 40 | 20.40 | |
|  Ma, Rufus | | | 1070 | ENG | 1.00 | 1 | 0.24 | 40 | 9.60 | | | Bloom, Paul | | | 1445 | ENG | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Ma, Rufus | | | 1070 | ENG | 1.00 | 1 | 0.24 | 40 | 9.60 | | | Rajapaksha, Tinusha | | | 1119 | ENG | 1.00 | 1 | 0.30 | 40 | 12.00 | |
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) | | | | Coulsdon Chess Junior Grand Prix Autumn 2022- Level 5 Event Three | Coulsdon | ENG | 2022-12-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1181 | 1272 | 3.50 | 4 | 1.02 | 40 | 40.80 | |
| | Blake-Gyeresy, Alfred | | | 1198 | ENG | 1.00 | 1 | 0.40 | 40 | 16.00 | | | Ponsudhahar, Adit | | | 1240 | ENG | 0.50 | 1 | -0.04 | 40 | -1.60 | | | Ma, Rufus | | | 1070 | ENG | 1.00 | 1 | 0.24 | 40 | 9.60 | | | Mallick, Ismail | | | 1215 | ENG | 1.00 | 1 | 0.42 | 40 | 16.80 | |
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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