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Individual Calculations June 2017 |
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| Oosthuizen, Michal Jacobus Total change: -17.60 | |   |
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| World Schools Chess Championship 2017 - Open 13 | Iasi | ROU | 2017-04-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1550 | 1467 | 2.50 | 8 | -0.69 | 40 | -27.60 | |
|  Vilcu, Matei-Stefan | | | 1825 | ROU | 0.00 | 1 | -0.10 | 40 | -4.00 | |  Magold, Victor | | | 1867 * | ROU | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Maheeshan, Gayan | | | 1263 | SRI | 0.00 | 1 | -0.76 | 40 | -30.40 | | | Bumbea, Radu | | | 1067 * | ROU | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Danila, Ianis-Andrei | | | 1538 | ROU | 0.50 | 1 | 0.10 | 40 | 4.00 | | | Soltuz-Grosu, Roland-Vladimir | | | 1609 | ROU | 0.50 | 1 | 0.19 | 40 | 7.60 | | | Ovcharenko, Hryhoriy | | | 1714 | UKR | 0.50 | 1 | 0.31 | 40 | 12.40 | | | Kiriella, K G Gimantha Gayasha | | | 1519 | SRI | 0.00 | 1 | -0.43 | 40 | -17.20 | | | * 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) | | | | 2017 Lubowski Open (A and B Sections) | Pretoria | RSA | 2017-05-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1622 | 1467 | 1.50 | 4 | 0.25 | 40 | 10.00 | |
| | Senekal, Frederick | | | 1780 | RSA | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Maruma, Abel | | | 1645 | RSA | 1.00 | 1 | 0.73 | 40 | 29.20 | | | Booysen, Antonio | | | 1641 | RSA | 0.50 | 1 | 0.23 | 40 | 9.20 | | | Mostert, Gert | | | 1420 | RSA | 0.00 | 1 | -0.57 | 40 | -22.80 | |
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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