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Individual Calculations September 2009 |
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| Cumming, Rhys Total change: 73.65 | |   |
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| Yeovil Summer Chess Congress | Yeovil | ENG | 2009-06-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2131 | 1890 | 1.50 | 3 | 0.88 | 15 | 13.20 | |
|  Taylor, Robert Graham | | | 2063 | WLS | 1.00 | 1 | 0.73 | 15 | 10.95 | |  Salimbeni, George P W | | | 2099 | ENG | 0.50 | 1 | 0.27 | 15 | 4.05 | | | Sherwin, James T | m | | 2232 | USA | 0.00 | 1 | -0.12 | 15 | -1.80 | |
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) | | | | NCJS Young Masters 2009: Young Masters | Street, Somerset | ENG | 2009-07-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1954 | 1895 | 2.00 | 3 | 0.74 | 15 | 11.10 | |
| | Levicki, Jeffrey P | | | 1939 | ENG | 0.50 | 1 | 0.06 | 15 | 0.90 | | | Streeter, Harry P | | | 1902 | ENG | 0.50 | 1 | 0.01 | 15 | 0.15 | | | Grant, David J | | | 2022 | ENG | 1.00 | 1 | 0.67 | 15 | 10.05 | |
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) | | | | British Championships-Major Open | Torquay | ENG | 2009-07-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2102 | 1895 | 5.50 | 9 | 3.29 | 15 | 49.35 | |
| | Ali, Mohammad Imran | | | 2148 | BAN | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Lunn, Matthew | | | 1928 | ENG | 0.50 | 1 | 0.05 | 15 | 0.75 | | | Monir, Arman | | | 2172 | BAN | 1.00 | 1 | 0.83 | 15 | 12.45 | | | Rabbitte, Liam F | | | 2000 | ENG | 1.00 | 1 | 0.64 | 15 | 9.60 | | | Grant, David J | | | 2022 | ENG | 1.00 | 1 | 0.67 | 15 | 10.05 | | | Hossain, Monir | | | 2190 | BAN | 1.00 | 1 | 0.85 | 15 | 12.75 | | | Ledger, Dave J | f | | 2225 | ENG | 0.50 | 1 | 0.38 | 15 | 5.70 | | | Jackson, Oliver A | | | 2159 | ENG | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Nelson, Omowale | | | 2075 | JAM | 0.50 | 1 | 0.24 | 15 | 3.60 | |
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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