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Individual Calculations September 2023 |
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| Hobbs, Richard P Total change: -22.80 | |   |
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| 6th Annual Irwin National Tournament of Senior State Champions | Grand Rapids, Michigan | USA | 2023-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1848 | 1726 | 0.50 | 3 | -0.57 | 40 | -22.80 | |
|  Gibbins, Wilson K | | | 1981 | USA | 0.00 | 1 | -0.19 | 40 | -7.60 | |  Lilly, Bryan | | | 1999 | USA | 0.00 | 1 | -0.17 | 40 | -6.80 | | | Porth, Adam | | | 1565 | USA | 0.50 | 1 | -0.21 | 40 | -8.40 | |
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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