Chichigina Natalya
From Odintsovo, Russia
EMA: 15990021
Internal rating (RR)
Rating date May 9, 2026 (latest changes May 7, 2026).
99 place (392.11).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85
p1 = (627.45 * 3.05 * 0.14 + 400 * 3.85 * 0.29 + 549.02 * 3.05 * 0.71 + 648.65 * 3.40 * 1 + 0) / (3.05 * 0.14 + 3.85 * 0.29 + 3.05 * 0.71 + 3.40 * 1 + 1) = 507.1178971224631
p2 = (648.65 * 3.40 * 1 + 549.02 * 3.05 * 0.71 + 400 * 3.85 * 0.29 + 627.45 * 3.05 * 0.14) / max_coefficients = 277.1016835016835
score = 507.1178971224631 * 0.5 + 277.1016835016835 * 0.5 = 392.1097903120733
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-05-03 | 99 | 391.18 -> 392.11 | |
| 2026-05-01 | 101 -> 99 | 395.14 -> 391.18 |
SPB Riichi Open 2024: 43% -> 29% |
| 2026-04-19 | 100 -> 101 | 395.14 | |
| 2026-04-16 | 101 -> 100 | 395.14 | |
| 2026-04-13 | 103 -> 101 | 395.14 | |
| 2026-04-11 | 102 -> 103 | 395.14 | |
| 2026-04-09 | 94 -> 102 | 407.32 -> 395.14 |
Agari Summer Tournament 2024: 29% -> 14% |
| 2026-04-04 | 96 -> 94 | 407.32 | |
| 2026-04-02 | 95 -> 96 | 416.29 -> 407.32 |
Agari Winter Tournament 2025: 86% -> 71% |
| 2026-03-26 | 96 -> 95 | 416.29 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 649 |
|
27/75 | 100% | 3.40 | RR | White Wolf Cup 2026 | Saint Petersburg | |
| 2 | 549 |
|
24/52 | 71% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow | |
| 3 | 400 |
|
58/96 | 29% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 4 | 627 |
|
20/52 | 14% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow | |
| 5 | 627 |
|
20/52 | 0% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow | |
| 6 | 187 |
|
88/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 7 | 333 |
|
51/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 8 | 108 |
|
100/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 9 | 64 |
|
45/48 | 0% | 3.10 | RR | Agari team tournament | Moscow | |
| 10 | 32 |
|
31/32 | 0% | 2.70 | RR | The last chance: back to 2019 | Moscow | |
| 11 | 81 |
|
103/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship | Moscow | |
| 12 | 317 |
|
44/64 | 0% | 3.45 | EMA | White Dragon Tournament | Moscow | |
| 13 | 0 |
|
24/24 | 0% | 2.73 | RR | Winner tournament. Agari season event | Moscow |