Chichigina Natalya
From Odintsovo, Russia
EMA: 15990021
Common russian riichi rating (CRR)
Rating date Feb. 25, 2024 (latest changes Feb. 25, 2024).
142 place (160.79).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 2.90 * 1) = 13.650060000000002
p1 = (108.11 * 4.05 * 0.29 + 333.33 * 4.20 * 0.71 + 186.92 * 4 * 1 + 0 + 0) / (4.05 * 0.29 + 4.20 * 0.71 + 4 * 1 + 1 + 1) = 184.37956728982405
p2 = (333.33 * 4.20 * 0.71 + 186.92 * 4 * 1 + 108.11 * 4.05 * 0.29) / max_coefficients = 137.1986643282154
score = 184.37956728982405 * 0.5 + 137.1986643282154 * 0.5 = 160.78911580901973
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-02-25 | 139 -> 142 | 160.79 | |
| 2024-02-12 | 142 -> 139 | 161.03 -> 160.79 |
Moscow Riichi 2022: 43% -> 29% |
| 2024-01-20 | 144 -> 142 | 161.03 | |
| 2024-01-14 | 146 -> 144 | 161.03 | |
| 2024-01-06 | 143 -> 146 | 169.11 -> 161.03 |
IX Russian Riichi Championship: 86% -> 71% |
| 2024-01-05 | 145 -> 143 | 169.11 | |
| 2023-12-19 | 149 -> 145 | 176.28 -> 169.11 |
Agari team tournament: 14% -> 0% |
| 2023-12-12 | 150 -> 149 | 176.11 -> 176.28 |
Moscow Riichi 2022: 57% -> 43% |
| 2023-11-28 | 155 -> 150 | 176.11 | |
| 2023-11-26 | 150 -> 155 | 176.66 -> 176.11 |
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 | 71% | 4.20 | RR | IX Russian Riichi Championship |
| 3 | 108 |
|
100/112 | 29% | 4.05 | RR | Moscow Riichi 2022 |
| 4 | 64 |
|
45/48 | 0% | 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 |
| 9 | 895 |
|
3/20 | 0% | 1.50 | CRR | Agari tournament. First stage |