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Individual Calculations April 2023 |
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| Yamamoto, Craig Total change: -6.40 | |   |
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| 2023 Spring Tuesday Night Marathon - Under 1600 Rounds 1-3 | San Francisco, CA | USA | 2023-03-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1236 | 1429 | 1.50 | 2 | 0.00 | 20 | 0.00 | |
|  Le, Thu | | | 1225 | USA | 0.50 | 1 | -0.26 | 20 | -5.20 | |  Ahrens, Richard William | | | 1246 | USA | 1.00 | 1 | 0.26 | 20 | 5.20 | |
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) | | | | 20th Wilkerson Memorial Championship - Under 1600 | San Francisco, CA | USA | 2023-03-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1172 | 1429 | 0.50 | 1 | -0.32 | 20 | -6.40 | |
| | Arivoli, Aradhana | | | 1172 | USA | 0.50 | 1 | -0.32 | 20 | -6.40 | |
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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