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Individual Calculations September 2023 |
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| Hardaway, Brewington Total change: 1.20 | |   |
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| June 2023 Marshall Premier | New York, NY | USA | 2023-06-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1973 | 2373 | 1.00 | 1 | 0.08 | 20 | 1.60 | |
|  Olsen, Robert | | | 1973 * | USA | 1.00 | 1 | 0.08 | 20 | 1.60 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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) | | | | 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 |
| 2064 | 2361 | 2.50 | 3 | -0.02 | 20 | -0.40 | |
| | Jiang, Andrew | | | 2170 | USA | 1.00 | 1 | 0.25 | 20 | 5.00 | |  Wilson, Ronen | | | 2033 | USA | 0.50 | 1 | -0.37 | 20 | -7.40 | | | Feng, Eric Z | | | 1989 | USA | 1.00 | 1 | 0.10 | 20 | 2.00 | |
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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