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Rapid:
Individual Calculations December 2017 |
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| Sandi Quiros, Andrey Total change: -14.40 | |   |
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| I Torneo Unidos por el Ajedrez Sub14 2017 | Alajuela | CRC | 2017-11-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1242 | 1375 | 2.00 | 4 | -0.72 | 20 | -14.40 | |
|  Orozco Centeno, Mariana | | | 1212 | CRC | 1.00 | 1 | 0.28 | 20 | 5.60 | |  Barquero Alfaro, Alejandro | | | 1265 | CRC | 0.00 | 1 | -0.65 | 20 | -13.00 | | | Medina Mayorga, David Josue | | | 1249 | CRC | 1.00 | 1 | 0.33 | 20 | 6.60 | | | Jimenez Navarro, Diego | | | 1241 | CRC | 0.00 | 1 | -0.68 | 20 | -13.60 | |
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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