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Individual Calculations June 2023 |
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| Ahrens, Richard William Total change: -8.60 | |   |
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| 2023 Spring Tuesday Night Marathon - Under 1600 Rounds 4-7 | San Francisco, CA | USA | 2023-03-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1113 | 1246 | 0.50 | 1 | -0.18 | 20 | -3.60 | |
|  Myers, Steven Lee | | | 1113 | USA | 0.50 | 1 | -0.18 | 20 | -3.60 | |
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) | | | | 2023 Summer Tuesday Night Marathon - Under 1200 Rounds 1-4 | San Francisco, CA | USA | 2023-05-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1341 | 1239 | 0.50 | 2 | -0.25 | 20 | -5.00 | |
|  Olson, David R | | | 1203 | USA | 0.50 | 1 | -0.05 | 20 | -1.00 | | | James, Charles | | | 1479 | USA | 0.00 | 1 | -0.20 | 20 | -4.00 | |
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) | | |
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