Chichigina Natalya
From Odintsovo, Russia
EMA: 15990021
Internal rating (RR)
Rating date Sept. 3, 2023 (latest changes Sept. 3, 2023).
119 place (181.75).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.71) = 14.842915
p1 = (63.83 * 3.10 * 0.29 + 108.11 * 4.05 * 0.71 + 333.33 * 4.20 * 1 + 186.92 * 4 * 1 + 0) / (3.10 * 0.29 + 4.05 * 0.71 + 4.20 * 1 + 4 * 1 + 1) = 193.93023199370347
p2 = (333.33 * 4.20 * 1 + 186.92 * 4 * 1 + 108.11 * 4.05 * 0.71 + 63.83 * 3.10 * 0.29) / max_coefficients = 169.5718125449078
score = 193.93023199370347 * 0.5 + 169.5718125449078 * 0.5 = 181.75102226930562
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-09-03 | 102 -> 119 | 157.54 -> 181.75 |
SPB Riichi Open 2023: 0% -> 100% |
2023-08-19 | 102 | 156.23 -> 157.54 |
Agari team tournament: 43% -> 29% |
2023-08-12 | 103 -> 102 | 153.85 -> 156.23 |
Moscow Riichi 2022: 86% -> 71% |
2023-07-20 | 106 -> 103 | 151.36 -> 153.85 | |
2023-06-19 | 107 -> 106 | 150.33 -> 151.36 |
Agari team tournament: 57% -> 43% |
2023-06-12 | 107 | 148.42 -> 150.33 |
Moscow Riichi 2022: 100% -> 86% |
2023-06-11 | 89 -> 107 | 159.05 -> 148.42 | |
2023-05-28 | 89 | 157.82 -> 159.05 | |
2023-05-20 | 91 -> 89 | 154.92 -> 157.82 | |
2023-05-06 | 92 -> 91 | 154.92 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 187 |
|
88/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
2 | 333 |
|
51/76 | 100% | 4.20 | RR | IX Russian Riichi Championship |
3 | 108 |
|
100/112 | 71% | 4.05 | RR | Moscow Riichi 2022 |
4 | 64 |
|
45/48 | 29% | 3.10 | RR | Agari team tournament |
5 | 32 |
|
31/32 | 0% | 2.70 | RR | The last chance: back to 2019 |
6 | 81 |
|
103/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship |
7 | 317 |
|
44/64 | 0% | 3.45 | EMA | White Dragon Tournament |
8 | 0 |
|
24/24 | 0% | 2.73 | RR | Winner tournament. Agari season event |