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Individual Calculations April 2009 |
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| Hilton, Jonathan L Total change: 25.70 | |   |
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| 41st Annual Liberty Bell Open | Philadelphia, Pennsylvania | USA | 2009-01-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2268 | 2194 | 2.50 | 5 | 0.44 | 25 | 11.00 | |
|  Molner, Mackenzie | | | 2394 | USA | 0.00 | 1 | -0.24 | 25 | -6.00 | |  Marshall, Abby | | wf | 2194 | USA | 1.00 | 1 | 0.50 | 25 | 12.50 | | | Finney, Stuart S | | | 1926 | USA | 1.00 | 1 | 0.17 | 25 | 4.25 | | | Shabalov, Alexander | g | | 2544 | USA | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Melekhina, Alisa | | wm | 2280 | USA | 0.50 | 1 | 0.12 | 25 | 3.00 | |
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) | | | NOTE: K factor changed | | 32nd Cardinal Open | Columbus, Ohio | USA | 2009-01-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2465 | 2194 | 0.00 | 1 | -0.17 | 15 | -2.55 | |
| | Vojinovic, Goran | m | | 2465 | SRB | 0.00 | 1 | -0.17 | 15 | -2.55 | |
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) | | | NOTE: K factor changed | | 39th Annual World Amateur Team & US Team East | Parsippany, New Jersey | USA | 2009-02-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2107 | 2194 | 3.00 | 3 | 1.15 | 15 | 17.25 | |
| | Fleischman, Eric J | | | 2097 | USA | 1.00 | 1 | 0.37 | 15 | 5.55 | | | Sturt, Raven M | | | 2073 | USA | 1.00 | 1 | 0.34 | 15 | 5.10 | | | Carswell Jr, Herbe | | | 2150 | USA | 1.00 | 1 | 0.44 | 15 | 6.60 | |
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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