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Individual Calculations May 2017 |
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| Samuels, Ethan Total change: -40.00 | |   |
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| South African Junior Closed 2017 (u16 Open) | Benoni | RSA | 2017-04-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1635 | 1656 | 2.50 | 7 | -1.15 | 40 | -46.00 | |
|  Ramatseliso, Thabiso | | | 1844 | RSA | 1.00 | 1 | 0.74 | 40 | 29.60 | |  Khumalo, Keith | | | 1720 | RSA | 0.50 | 1 | 0.09 | 40 | 3.60 | | | Frye, Reece Lawrence | c | | 1485 | RSA | 0.00 | 1 | -0.73 | 40 | -29.20 | | | Mazibuko, Khanya | c | | 1856 | RSA | 0.00 | 1 | -0.24 | 40 | -9.60 | | | Nyathi, Musa | | | 1385 | RSA | 0.50 | 1 | -0.33 | 40 | -13.20 | | | Varden, Trevelyn | f | | 1411 | RSA | 0.50 | 1 | -0.30 | 40 | -12.00 | | | Vester, Jordan | | | 1743 | RSA | 0.00 | 1 | -0.38 | 40 | -15.20 | |
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) | | | | Steinitz Chess Festival 2017 (Prestige) | Cape Town | RSA | 2017-04-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1598 | 1656 | 3.00 | 5 | 0.15 | 40 | 6.00 | |
| | Willenberg, Shaun R. | | | 1591 | RSA | 0.50 | 1 | -0.09 | 40 | -3.60 | | | Baxter, David Jarred | | | 1714 | RSA | 0.50 | 1 | 0.08 | 40 | 3.20 | | | Van Niekerk, Lauren | | wf | 1649 | RSA | 0.50 | 1 | -0.01 | 40 | -0.40 | | | Woolf, Charne | | wf | 1379 | RSA | 0.50 | 1 | -0.33 | 40 | -13.20 | | | Galleid, Stephen | | | 1657 | RSA | 1.00 | 1 | 0.50 | 40 | 20.00 | |
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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