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Rapid:
Individual Calculations August 2023 |
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| Chaves Moya, Nattanahel Alberto Total change: -4.00 | |   |
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| I Brada Chess Open Rapid 2023 | San Jose | CRC | 2023-06-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1505 | 1512 | 2.00 | 4 | -0.20 | 20 | -4.00 | |
|  Hernandez Perez, Javier Francisco | | | 1108 | CRC | 0.50 | 1 | -0.42 | 20 | -8.40 | |  Urbina Quiroz, Edwin | | | 2106 | CRC | 0.00 | 1 | -0.02 | 20 | -0.40 | | | Alvarado Guzman, Alberto | | | 1556 | CRC | 1.00 | 1 | 0.56 | 20 | 11.20 | | | Arguello Alvarado, Gael | | | 1249 | CRC | 0.50 | 1 | -0.32 | 20 | -6.40 | |
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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