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Individual Calculations September 2023 |
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| Mehlhaff, Samuel Total change: -12.80 | |   |
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| 13th Annual Barber National Tournament of Middle School State Champions | Grand Rapids, Michigan | USA | 2023-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1536 | 1472 | 0.00 | 1 | -0.41 | 40 | -16.40 | |
|  Bruni, Xavier | | | 1536 | USA | 0.00 | 1 | -0.41 | 40 | -16.40 | |
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) | | | | 68th Iowa Open Championship | Des Moines, Iowa | USA | 2023-08-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1589 | 1472 | 1.50 | 4 | 0.09 | 40 | 3.60 | |
|  Fei, Irene Jiao | | | 1726 | USA | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Ohly, Oliver | | | 1422 | USA | 0.00 | 1 | -0.57 | 40 | -22.80 | | | Riney, Rowan | | | 1644 | USA | 1.00 | 1 | 0.73 | 40 | 29.20 | | | Nixon, Niko R | | | 1563 | USA | 0.50 | 1 | 0.12 | 40 | 4.80 | |
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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