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Individual Calculations January 2019 |
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| Willenberg, Tristan Total change: 24.00 | |   |
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| 2018 South African Junion Chess Championships (u18A) | Boksburg | RSA | 2018-12-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1392 | 1358 | 2.00 | 3 | 0.62 | 40 | 24.80 | |
|  Rogge, Conrad | | | 1566 | RSA | 0.00 | 1 | -0.23 | 40 | -9.20 | | | Parthiephal, Dayaan | | | 1361 | RSA | 1.00 | 1 | 0.50 | 40 | 20.00 | |  Michaels, Carla Jesse | | | 1249 | RSA | 1.00 | 1 | 0.35 | 40 | 14.00 | |
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) | | | | 2018 Wild Card Chess Championships (U18 Open) | Boksburg | RSA | 2018-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1497 | 1358 | 1.00 | 3 | -0.02 | 40 | -0.80 | |
| | Reddy, Ananta | | | 1704 | RSA | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Modirwa, Ofentse | | | 1302 | RSA | 0.50 | 1 | -0.08 | 40 | -3.20 | | | Fibiger, Jethro Nathanael | | | 1484 | RSA | 0.50 | 1 | 0.17 | 40 | 6.80 | |
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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