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Individual Calculations September 2023 |
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| Heller, Jack Total change: -3.20 | |   |
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| 2023 U.S. Junior Open Championship | Elmhurst, IL | USA | 2023-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1870 | 1903 | 1.50 | 2 | 0.43 | 40 | 17.20 | |
|  Zhang, Justin | | | 1623 | USA | 1.00 | 1 | 0.16 | 40 | 6.40 | |  Kaplan, Avi Harrison | | | 2117 | USA | 0.50 | 1 | 0.27 | 40 | 10.80 | |
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) | | | | XXXIII Pan-American Youth Chess Festival - Under 18 Open | Chicago, IL | USA | 2023-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2036 | 1984 | 3.00 | 8 | -0.51 | 40 | -20.40 | |
| | Guo, Andrew | f | | 2330 | USA | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Bonilla Egan, Emerson | | | 1584 * | HON | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Doknjas, Neil | c | | 2236 | CAN | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Sanchez Ramirez, Alfredo | | | 1753 | MEX | 1.00 | 1 | 0.21 | 40 | 8.40 | | | Shlyakhtenko, Robert | m | | 2403 | USA | 0.00 | 1 | -0.07 | 40 | -2.80 | | | Rajaram, Rohan | c | | 2200 | USA | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Sifuentes Alcantara, Jhony Sebas | | | 1690 | PER | 1.00 | 1 | 0.15 | 40 | 6.00 | | | Kaplan, Avi Harrison | | | 2090 | USA | 0.00 | 1 | -0.36 | 40 | -14.40 | | | * 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) | | |
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