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Individual Calculations April 2009 |
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| Stuart, Peter Total change: 19.20 | |   |
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| North Island Championship | Hamilton | NZL | 2008-07-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2079 | 2097 | 3.50 | 6 | 0.34 | 15 | 5.10 | |
|  Fraemohs, Peter | | | 1955 | NZL | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Ker, Anthony F | m | | 2328 | NZL | 0.00 | 1 | -0.21 | 15 | -3.15 | |  Duneas, John | | | 2068 | NZL | 0.50 | 1 | -0.04 | 15 | -0.60 | | | Milligan, Helen | | wf | 1976 | NZL | 0.50 | 1 | -0.16 | 15 | -2.40 | | | Fuatai, Fuatai | | | 2021 | NZL | 0.50 | 1 | -0.10 | 15 | -1.50 | | | Thornton, Giovanni Antonio | | | 2126 | NZL | 1.00 | 1 | 0.54 | 15 | 8.10 | |
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) | | | | Waikato Open 2008 | Hamilton | NZL | 2008-08-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2140 | 2097 | 3.00 | 5 | 0.77 | 15 | 11.55 | |
| | Marko, Helmut | | | 2123 | PNG | 1.00 | 1 | 0.54 | 15 | 8.10 | | | Bennett, Hilton | | | 2043 | NZL | 1.00 | 1 | 0.42 | 15 | 6.30 | | | Han, Daniel | | | 2195 | NZL | 0.50 | 1 | 0.13 | 15 | 1.95 | | | Smith, Robert W | f | | 2316 | NZL | 0.00 | 1 | -0.22 | 15 | -3.30 | | | Fuatai, Fuatai | | | 2021 | NZL | 0.50 | 1 | -0.10 | 15 | -1.50 | |
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) | | | | 2009 Queenstown Chess Classic incorp 116th NZL Championship | Queenstown | NZL | 2009-01-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2143 | 2076 | 3.50 | 8 | 0.17 | 15 | 2.55 | |
| | Garbett, Paul Anthony | m | | 2329 | NZL | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Egan, Bill | | | 1776 | AUS | 1.00 | 1 | 0.15 | 15 | 2.25 | | | Lyell, Mark | f | | 2286 | ENG | 0.50 | 1 | 0.27 | 15 | 4.05 | | | Krivec, Jana | | wg | 2343 | SLO | 0.50 | 1 | 0.32 | 15 | 4.80 | | | Saw, Geoffrey | f | | 2257 | AUS | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Steadman, Michael | | | 2273 | NZL | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Forster, William | | | 1954 | NZL | 0.50 | 1 | -0.17 | 15 | -2.55 | | | Tsagarakis, Angelo | | | 1927 | AUS | 1.00 | 1 | 0.30 | 15 | 4.50 | |
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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