8.28 Proper adjustment of K is advantageous to the player, for his opponents, and for the integrity of the entire pool.
| Player | Rounds | Elo | SRM |
|---|---|---|---|
| sean_henderson | 130 | 3006 | 1806 |
| Rating | perf | err | err2 | |ΔR| | ΔR min | ΔR max | max | R | rank |
|---|---|---|---|---|---|---|---|---|---|
| SRMFix | 0.144 | 0.788 | 1.065 | 28.2 | -53 | 410 | 2544 | 2399 | 715 |
| EloSRM | 0.224 | 0.795 | 1.061 | 23.1 | -38 | 386 | 3027 | 3006 | 875 |
| initial | 0.095 | 0.813 | 1.136 | 97.8 | -388 | 591 | 3039 | 2678 | 953 |
| SRM | 0.327 | 0.850 | 1.139 | 59.2 | -264 | 245 | 2242 | 1806 | 940 |
| # | date | round | division | rank | seed | perf | Δ Elo | Elo new | Elo rank | Δ SRM | SRM new | SRM rank |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 130 | 2013-04-06 | SRM 575 | 1 | 630 | 390.88 | -0.95 | -20 | 3006 | 875 | -137 | 1806 | 940 |
| 129 | 2013-02-23 | TCO13 Round 1A | 1 | 184 | 224.44 | 0.29 | 14 | 3027 | 754 | 20 | 1943 | 634 |
| 128 | 2012-05-19 | SRM 543 | 1 | 221 | 258.88 | 0.23 | 8 | 3013 | 654 | 24 | 1923 | 624 |
| 127 | 2012-05-12 | TCO12 Round 2B | 1 | 806 | 486.81 | -0.97 | -16 | 3005 | 684 | -145 | 1899 | 675 |
| 126 | 2012-04-21 | TCO12 Round 2A | 1 | 235 | 463.53 | 0.98 | 26 | 3021 | 637 | 43 | 2044 | 450 |
| 125 | 2012-03-31 | TCO12 Round 1A | 1 | 105 | 283.34 | 1.43 | 31 | 2995 | 657 | 52 | 2001 | 509 |
| 124 | 2012-02-18 | SRM 533 | 1 | 189 | 266.21 | 0.49 | 18 | 2964 | 691 | 24 | 1949 | 564 |
| 123 | 2011-07-09 | TCO11 Round 3 | 1 | 202 | 225.01 | -0.17 | -2 | 2945 | 630 | -31 | 1925 | 569 |
| 122 | 2011-06-25 | TCO11 Round 2 | 1 | 227 | 380.10 | 0.74 | 19 | 2948 | 618 | 55 | 1956 | 528 |
| 121 | 2011-06-18 | TCO11 Round 1 | 1 | 311 | 501.38 | 0.69 | 18 | 2929 | 659 | 51 | 1901 | 604 |
| 120 | 2011-06-02 | SRM 508 | 1 | 132 | 284.62 | 1.11 | 25 | 2911 | 703 | 77 | 1850 | 695 |
| 119 | 2011-05-28 | SRM 507 | 1 | 128 | 270.72 | 1.08 | 28 | 2885 | 761 | 81 | 1773 | 831 |
| 118 | 2011-05-14 | TCO11 Qual 1 | 1 | 534 | 268.41 | -0.99 | -17 | 2858 | 810 | -25 | 1692 | 984 |
| 117 | 2011-04-16 | Member SRM 503 | 1 | 455 | 257.79 | -0.82 | -19 | 2875 | 752 | -42 | 1717 | 916 |
| 116 | 2011-02-26 | SRM 498 | 1 | 639 | 284.01 | -1.29 | -35 | 2894 | 679 | -162 | 1759 | 832 |
| 115 | 2010-06-26 | TCO10 Round 2 | 1 | 382 | 329.72 | -0.21 | -2 | 2929 | 506 | -11 | 1921 | 531 |
| 114 | 2010-06-19 | TCO10 Round 1 | 1 | 394 | 399.15 | 0.02 | 5 | 2931 | 494 | 15 | 1932 | 509 |
| 113 | 2010-05-24 | TCO10 Qual 3 | 1 | 83 | 87.09 | 0.07 | 9 | 2925 | 496 | 35 | 1917 | 527 |
| 112 | 2009-09-10 | SRM 448 | 1 | 444 | 252.25 | -1.12 | -20 | 2917 | 420 | -139 | 1882 | 547 |
| 111 | 2009-08-25 | SRM 447 | 1 | 97 | 155.79 | 0.68 | 22 | 2937 | 387 | 52 | 2021 | 383 |
| 110 | 2009-03-21 | TCO09 Round 3 | 1 | 255 | 190.23 | -0.51 | -11 | 2914 | 404 | -105 | 1969 | 449 |
| 109 | 2009-03-14 | TCO09 Round 2 | 1 | 270 | 300.86 | 0.16 | 8 | 2925 | 388 | 11 | 2074 | 362 |
| 108 | 2009-03-07 | TCO09 Round 1 | 1 | 445 | 369.29 | -0.27 | -3 | 2918 | 387 | -10 | 2063 | 366 |
| 107 | 2009-03-04 | TCO09 Qual 3 | 1 | 66 | 56.51 | -0.22 | 0 | 2920 | 376 | 17 | 2073 | 362 |
| 106 | 2009-02-24 | TCO09 Qual 1 | 1 | 610 | 121.08 | -2.33 | -37 | 2920 | 375 | -117 | 2056 | 363 |
| 105 | 2008-03-01 | TCO08 Round 3 | 1 | 206 | 164.67 | -0.32 | -4 | 2957 | 267 | -35 | 2173 | 252 |
| 104 | 2008-02-23 | TCO08 Round 2 | 1 | 160 | 261.02 | 0.71 | 14 | 2961 | 254 | 44 | 2208 | 235 |
| 103 | 2008-02-16 | TCO08 Round 1 | 1 | 153 | 291.63 | 0.93 | 17 | 2947 | 263 | 58 | 2164 | 262 |
| 102 | 2008-02-05 | TCO08 Qual 1 | 1 | 19 | 93.74 | 2.30 | 27 | 2930 | 265 | 102 | 2106 | 288 |
| 101 | 2008-01-09 | SRM 387 | 1 | 300 | 143.80 | -1.31 | -15 | 2903 | 288 | -155 | 2004 | 369 |
| 100 | 2007-12-19 | SRM 384 | 1 | 66 | 88.20 | 0.42 | 10 | 2918 | 259 | 22 | 2159 | 225 |
| 99 | 2007-12-13 | SRM 383 | 1 | 167 | 97.02 | -0.78 | -9 | 2907 | 270 | -43 | 2137 | 238 |
| 98 | 2007-12-11 | SRM 382 | 1 | 39 | 101.46 | 1.38 | 25 | 2917 | 254 | 62 | 2180 | 214 |
| 97 | 2007-11-14 | SRM 376 | 1 | 131 | 105.11 | -0.32 | -3 | 2892 | 269 | -13 | 2118 | 248 |
| 96 | 2007-08-30 | TCCC07 Round 1B | 1 | 52 | 59.93 | 0.20 | 6 | 2894 | 226 | 22 | 2131 | 227 |
| 95 | 2007-07-02 | SRM 356 | 1 | 181 | 151.47 | -0.80 | -8 | 2888 | 216 | -126 | 2109 | 226 |
| 94 | 2007-06-07 | SRM 353 | 1 | 55 | 132.08 | 1.26 | 18 | 2896 | 206 | 49 | 2235 | 146 |
| 93 | 2007-06-02 | SRM 352 | 1 | 186 | 121.20 | -0.62 | -6 | 2878 | 219 | -40 | 2186 | 178 |
| 92 | 2007-04-28 | TCO07 Round 4 | 1 | 95 | 92.55 | -0.04 | 1 | 2884 | 205 | -16 | 2226 | 152 |
| 91 | 2007-04-21 | TCO07 Round 3 | 1 | 26 | 149.44 | 2.52 | 33 | 2883 | 208 | 130 | 2242 | 143 |
| 90 | 2007-04-18 | SRM 345 | 1 | 244 | 141.46 | -0.79 | -8 | 2850 | 246 | -50 | 2112 | 220 |
| 89 | 2007-04-14 | TCO07 Round 2 | 1 | 124 | 223.13 | 0.85 | 15 | 2858 | 224 | 42 | 2162 | 197 |
| 88 | 2007-04-07 | TCO07 Round 1A | 1 | 78 | 138.64 | 0.83 | 15 | 2842 | 232 | 39 | 2120 | 215 |
| 87 | 2007-04-03 | TCO07 Qual 3 | 1 | 2 | 32.51 | 4.02 | 32 | 2828 | 243 | 115 | 2081 | 231 |
| 86 | 2007-02-03 | SRM 337 | 1 | 189 | 122.45 | -0.63 | -6 | 2795 | 253 | -32 | 1966 | 297 |
| 85 | 2007-01-25 | SRM 336 | 1 | 95 | 87.02 | -0.13 | 1 | 2802 | 249 | 1 | 1998 | 269 |
| 84 | 2007-01-17 | SRM 335 | 1 | 213 | 117.06 | -0.86 | -9 | 2801 | 251 | -47 | 1997 | 277 |
| 83 | 2007-01-13 | SRM 334 | 1 | 84 | 116.50 | 0.47 | 10 | 2810 | 235 | 29 | 2044 | 237 |
| 82 | 2007-01-04 | SRM 333 | 1 | 139 | 102.55 | -0.44 | -4 | 2800 | 246 | -16 | 2015 | 253 |
| 81 | 2006-12-28 | SRM 332 | 1 | 89 | 75.44 | -0.24 | -1 | 2804 | 240 | -5 | 2031 | 242 |
| 80 | 2006-12-21 | SRM 331 | 1 | 111 | 87.80 | -0.34 | -3 | 2805 | 236 | -9 | 2036 | 244 |
| 79 | 2006-12-13 | SRM 330 | 1 | 73 | 87.70 | 0.26 | 8 | 2808 | 233 | 25 | 2045 | 230 |
| 78 | 2006-12-09 | SRM 329 | 1 | 226 | 107.05 | -1.08 | -13 | 2800 | 236 | -55 | 2020 | 247 |
| 77 | 2006-11-29 | SRM 328 | 1 | 174 | 81.05 | -1.10 | -13 | 2814 | 219 | -57 | 2075 | 207 |
| 76 | 2006-11-22 | SRM 327 | 1 | 29 | 89.57 | 1.63 | 28 | 2827 | 208 | 73 | 2132 | 182 |
| 75 | 2006-11-02 | SRM 325 | 1 | 159 | 102.62 | -0.63 | -8 | 2799 | 228 | -33 | 2059 | 215 |
| 74 | 2006-10-02 | SRM 321 | 1 | 148 | 84.09 | -0.82 | -9 | 2808 | 207 | -33 | 2092 | 197 |
| 73 | 2006-09-30 | SRM 320 | 1 | 94 | 111.96 | 0.25 | 8 | 2817 | 201 | 22 | 2125 | 188 |
| 72 | 2006-09-21 | TCCC06 Round 1A | 1 | 33 | 51.78 | 0.65 | 15 | 2809 | 198 | 48 | 2103 | 187 |
| 71 | 2006-08-09 | SRM 315 | 1 | 59 | 89.25 | 0.60 | 14 | 2794 | 196 | 49 | 2055 | 208 |
| 70 | 2006-07-22 | SRM 312 | 1 | 382 | 87.24 | -2.13 | -25 | 2780 | 194 | -171 | 2006 | 230 |
| 69 | 2006-07-06 | SRM 310 | 1 | 14 | 69.10 | 2.30 | 33 | 2805 | 178 | 84 | 2177 | 134 |
| 68 | 2006-06-28 | SRM 309 | 1 | 33 | 66.11 | 1.00 | 19 | 2772 | 196 | 40 | 2093 | 166 |
| 67 | 2006-06-24 | SRM 308 | 1 | 68 | 73.81 | 0.12 | 6 | 2752 | 214 | 8 | 2053 | 188 |
| 66 | 2006-05-31 | SRM 305 | 1 | 52 | 74.80 | 0.52 | 14 | 2746 | 216 | 30 | 2045 | 197 |
| 65 | 2006-03-29 | SRM 295 | 1 | 51 | 105.03 | 1.04 | 20 | 2732 | 215 | 68 | 2015 | 208 |
| 64 | 2006-03-25 | SRM 294 | 1 | 123 | 113.76 | -0.11 | 1 | 2712 | 233 | 10 | 1947 | 260 |
| 63 | 2006-03-17 | SRM 293 | 1 | 63 | 92.82 | 0.56 | 14 | 2711 | 234 | 53 | 1937 | 256 |
| 62 | 2006-03-08 | TCO06 Round 2 | 1 | 280 | 179.08 | -0.78 | -13 | 2698 | 244 | -108 | 1884 | 303 |
| 61 | 2006-03-06 | SRM 292 | 1 | 144 | 90.84 | -0.66 | -9 | 2711 | 223 | -31 | 1992 | 218 |
| 60 | 2006-03-04 | TCO06 Round 1 | 1 | 132 | ||||||||
| 59 | 2006-02-28 | TCO06 Qual 7/9/14 | 1 | 7 | 36.34 | 2.38 | 33 | 2720 | 212 | 109 | 2023 | 203 |
| 58 | 2006-02-08 | SRM 288 | 1 | 36 | 78.51 | 1.12 | 24 | 2687 | 224 | 80 | 1914 | 261 |
| 57 | 2006-02-04 | SRM 287 | 1 | 170 | 166.42 | -0.65 | -10 | 2663 | 244 | -107 | 1834 | 315 |
| 56 | 2006-01-05 | SRM 281 | 1 | 114 | 91.36 | -0.32 | -3 | 2673 | 220 | -12 | 1941 | 228 |
| 55 | 2005-11-21 | SRM 273 | 1 | 115 | 101.35 | -0.18 | -1 | 2676 | 204 | -1 | 1953 | 216 |
| 54 | 2005-11-19 | SRM 272 | 1 | 107 | 102.13 | -0.07 | 2 | 2676 | 201 | 9 | 1954 | 211 |
| 53 | 2005-11-03 | SRM 270 | 1 | 90 | 65.11 | -0.47 | -6 | 2674 | 196 | -11 | 1945 | 203 |
| 52 | 2005-08-30 | SRM 261 | 1 | 66 | 75.71 | 0.20 | 7 | 2680 | 175 | 35 | 1956 | 192 |
| 51 | 2005-08-24 | TCO05 Round 2 | 1 | 291 | 128.18 | -1.18 | -18 | 2673 | 172 | -115 | 1921 | 216 |
| 50 | 2005-08-22 | SRM 259 | 1 | 115 | 43.12 | -1.42 | -19 | 2691 | 157 | -104 | 2036 | 147 |
| 49 | 2005-08-20 | TCO05 Round 1 | 1 | 125 | 148.38 | 0.25 | 9 | 2710 | 144 | 7 | 2140 | 112 |
| 48 | 2005-08-16 | TCO05 Qual 1/3 | 1 | 14 | 39.82 | 1.51 | 29 | 2702 | 146 | 63 | 2133 | 114 |
| 47 | 2005-08-10 | SRM 258 | 1 | 30 | 87.87 | 1.55 | 32 | 2673 | 156 | 68 | 2070 | 132 |
| 46 | 2005-08-08 | SRM 257 | 1 | 75 | 101.43 | 0.44 | 14 | 2641 | 182 | 26 | 2002 | 162 |
| 45 | 2005-07-28 | SRM 255 | 1 | 84 | 69.07 | -0.28 | -3 | 2626 | 187 | -17 | 1976 | 170 |
| 44 | 2005-07-26 | SRM 254 | 1 | 75 | 54.85 | -0.45 | -7 | 2630 | 182 | -30 | 1993 | 159 |
| 43 | 2005-07-12 | SRM 251 | 1 | 131 | 61.89 | -1.08 | -21 | 2637 | 177 | -93 | 2023 | 156 |
| 42 | 2005-06-29 | SRM 249 | 1 | 16 | 72.85 | 2.19 | 49 | 2658 | 163 | 88 | 2116 | 114 |
| 41 | 2005-06-21 | SRM 248 | 1 | 65 | 106.43 | 0.71 | 24 | 2609 | 193 | 32 | 2028 | 151 |
| 40 | 2005-06-01 | SRM 245 | 1 | 32 | 68.45 | 1.10 | 34 | 2585 | 205 | 57 | 1996 | 157 |
| 39 | 2005-04-14 | SRM 238 | 1 | 85 | 66.25 | -0.36 | -6 | 2551 | 218 | -35 | 1939 | 183 |
| 38 | 2005-04-02 | SRM 236 | 1 | 17 | 65.83 | 1.95 | 46 | 2558 | 208 | 96 | 1974 | 156 |
| 37 | 2005-02-08 | SRM 230 | 1 | 42 | 65.98 | 0.65 | 21 | 2511 | 229 | 39 | 1878 | 207 |
| 36 | 2005-01-19 | TCCC05 Round 2 | 1 | 118 | 101.07 | -0.22 | -4 | 2491 | 232 | -31 | 1839 | 214 |
| 35 | 2005-01-15 | TCCC05 Round 1 | 1 | 65 | 130.54 | 1.01 | 30 | 2495 | 224 | 64 | 1870 | 195 |
| 34 | 2005-01-11 | TCCC05 Qual 2 | 1 | 57 | 32.46 | -0.81 | -17 | 2465 | 247 | -41 | 1806 | 235 |
| 33 | 2004-12-22 | SRM 224 | 1 | 34 | 67.99 | 1.00 | 30 | 2482 | 225 | 61 | 1847 | 197 |
| 32 | 2004-12-01 | SRM 221 | 1 | 88 | 77.93 | -0.18 | -2 | 2452 | 262 | -13 | 1786 | 240 |
| 31 | 2004-10-18 | SRM 216 | 1 | 51 | 64.80 | 0.35 | 14 | 2453 | 251 | 28 | 1799 | 227 |
| 30 | 2004-09-14 | TCO04 Round 2 | 1 | 121 | 121.39 | -0.30 | -7 | 2440 | 252 | -64 | 1771 | 257 |
| 29 | 2004-09-14 | SRM 211 | 1 | 55 | 71.92 | 0.39 | 15 | 2447 | 239 | 28 | 1835 | 205 |
| 28 | 2004-09-11 | TCO04 Round 1 | 1 | 103 | 177.90 | 0.80 | 26 | 2432 | 247 | 63 | 1807 | 226 |
| 27 | 2004-09-07 | TCO04 Qual 5 | 1 | 40 | 45.49 | 0.19 | 10 | 2406 | 266 | 35 | 1744 | 270 |
| 26 | 2004-09-01 | SRM 210 | 1 | 46 | 112.85 | 1.30 | 40 | 2396 | 264 | 98 | 1709 | 290 |
| 25 | 2004-08-10 | SRM 207 | 1 | 130 | 90.51 | -0.72 | -18 | 2356 | 301 | -139 | 1611 | 384 |
| 24 | 2004-08-04 | SRM 206 | 1 | 47 | 87.88 | 0.90 | 32 | 2374 | 279 | 58 | 1750 | 256 |
| 23 | 2004-07-21 | SRM 204 | 1 | 37 | 90.39 | 1.29 | 43 | 2342 | 305 | 95 | 1692 | 285 |
| 22 | 2004-07-15 | SRM 203 | 1 | 55 | 61.11 | 0.15 | 10 | 2299 | 339 | 21 | 1597 | 377 |
| 21 | 2004-06-21 | SRM 200 | 1 | 94 | 109.58 | 0.22 | 13 | 2289 | 343 | 29 | 1576 | 394 |
| 20 | 2004-06-16 | SRM 199 | 1 | 46 | 84.68 | 0.88 | 36 | 2276 | 359 | 85 | 1547 | 430 |
| 19 | 2004-06-12 | SRM 198 | 1 | 73 | 70.89 | -0.04 | 3 | 2240 | 406 | 10 | 1462 | 544 |
| 18 | 2004-06-02 | SRM 197 | 1 | 68 | 87.99 | 0.37 | 21 | 2238 | 406 | 60 | 1452 | 564 |
| 17 | 2004-05-27 | SRM 196 | 1 | 63 | 79.10 | 0.33 | 20 | 2216 | 427 | 62 | 1392 | 646 |
| 16 | 2004-05-18 | SRM 195 | 1 | 149 | 90.00 | -0.73 | -27 | 2196 | 455 | -122 | 1330 | 778 |
| 15 | 2004-05-15 | SRM 194 | 1 | 103 | 96.14 | -0.10 | 0 | 2223 | 414 | 6 | 1452 | 551 |
| 14 | 2004-05-05 | SRM 193 | 1 | 64 | 101.12 | 0.66 | 39 | 2223 | 411 | 84 | 1446 | 559 |
| 13 | 2004-04-27 | SRM 192 | 1 | 95 | 102.57 | 0.11 | 13 | 2184 | 456 | 38 | 1362 | 690 |
| 12 | 2004-03-31 | SRM 189 | 1 | 149 | 90.44 | -0.81 | -33 | 2171 | 459 | -139 | 1324 | 798 |
| 11 | 2004-03-16 | SRM 187 | 1 | 135 | 90.79 | -0.57 | -25 | 2204 | 415 | -67 | 1463 | 537 |
| 10 | 2004-03-03 | TCCC '04 Round 2 | 1 | 147 | 106.91 | -0.46 | -23 | 2229 | 383 | -84 | 1530 | 440 |
| 9 | 2004-03-01 | SRM 185 | 1 | 86 | 122.34 | 0.51 | 39 | 2252 | 354 | 50 | 1614 | 352 |
| 8 | 2004-02-28 | TCCC '04 Round 1 | 1 | 191 | 141.21 | -0.44 | -20 | 2213 | 402 | -29 | 1564 | 400 |
| 7 | 2004-02-23 | TCCC '04 Qual. 1 | 1 | 20 | 38.27 | 0.94 | 75 | 2233 | 366 | 112 | 1593 | 360 |
| 6 | 2004-02-17 | SRM 184 | 1 | 101 | 119.59 | 0.24 | 34 | 2158 | 459 | 37 | 1481 | 490 |
| 5 | 2004-02-11 | SRM 183 | 1 | 86 | 119.12 | 0.47 | 64 | 2124 | 508 | 62 | 1444 | 542 |
| 4 | 2004-01-28 | SRM 181 | 1 | 81 | 136.75 | 0.76 | 114 | 2061 | 605 | 97 | 1382 | 638 |
| 3 | 2004-01-22 | SRM 180 | 2 | 3 | 66.28 | 4.47 | 262 | 1946 | 813 | 245 | 1285 | 904 |
| 2 | 2004-01-07 | SRM 178 | 1 | 188 | 171.79 | -0.17 | -38 | 1685 | 1416 | -264 | 1040 | 1694 |
| 1 | 2003-12-30 | SRM 177 | 2 | 42 | 123.38 | 1.56 | 386 | 1723 | 1304 | 104 | 1304 | 829 |