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Individual Calculations September 2023 |
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| Carey, Michael P Total change: 27.60 | |   |
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| 2023 U.S. Senior Open Championship | Elmhurst, IL | USA | 2023-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1896 | 1866 | 3.00 | 5 | 0.55 | 20 | 11.00 | |
|  Rector, Richard L | | | 1516 | USA | 1.00 | 1 | 0.11 | 20 | 2.20 | |  Kraai, Jesse | g | | 2380 | USA | 0.00 | 1 | -0.04 | 20 | -0.80 | | | Lavoice, Richard | | | 1808 | USA | 1.00 | 1 | 0.42 | 20 | 8.40 | | | Gilruth, Peter | | | 1981 | KEN | 0.00 | 1 | -0.34 | 20 | -6.80 | | | Abbott, James | | | 1797 | USA | 1.00 | 1 | 0.40 | 20 | 8.00 | |
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) | | | | 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 |
| 2117 | 1866 | 2.00 | 5 | 0.83 | 20 | 16.60 | |
| | Ginsburg, Mark | m | | 2291 | USA | 0.50 | 1 | 0.43 | 20 | 8.60 | | | Sevillano, Enrico | g | | 2357 | USA | 0.00 | 1 | -0.04 | 20 | -0.80 | | | Radermacher, Timothy | | | 1963 | USA | 0.50 | 1 | 0.13 | 20 | 2.60 | | | Sage, J Timothy | | | 1870 | USA | 1.00 | 1 | 0.51 | 20 | 10.20 | | | Taylor, Timothy W | m | | 2103 | 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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