Chichigina Natalya

From Odintsovo, Russia

EMA: 15990021

Player page

Internal rating (RR)

Rating date Oct. 10, 2025 (latest changes Oct. 9, 2025).

101 place (401.79).

max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8

p1 = (400 * 3.85 * 0.86 + 549.02 * 3.05 * 1 + 627.45 * 3.05 * 0.43 + 627.45 * 3.05 * 0.57 + 0) / (3.85 * 0.86 + 3.05 * 1 + 3.05 * 0.43 + 3.05 * 0.57 + 1) = 471.9459491424624

p2 = (549.02 * 3.05 * 1 + 400 * 3.85 * 0.86 + 627.45 * 3.05 * 0.57 + 627.45 * 3.05 * 0.43) / max_coefficients = 331.6324324324324

score = 471.9459491424624 * 0.5 + 331.6324324324324 * 0.5 = 401.7891907874474

Rating changes

Show

all results
Date Place Points Reason
2025-10-09 100 -> 101 414.16 -> 401.79

Agari Summer Tournament 2024: 71% -> 57%
2025-09-30 101 -> 100 414.16
2025-09-12 102 -> 101 414.16
2025-09-10 98 -> 102 426.27 -> 414.16

Agari Spring Tournament 2024: 57% -> 43%
2025-09-03 98 440.76 -> 426.27

SPB Riichi Open 2023: 14% -> 0%
2025-09-01 98 440.42 -> 440.76

SPB Riichi Open 2024: 100% -> 86%
2025-08-31 91 -> 98 440.42
2025-08-09 88 -> 91 451.62 -> 440.42

Agari Summer Tournament 2024: 86% -> 71%
2025-08-04 88 449.71 -> 451.62
2025-08-03 87 -> 88 449.71

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 549 2025-02-02 24/52 100% 3.05 RR Agari Winter Tournament 2025 Moscow
2 400 2024-09-01 58/96 86% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
3 627 2024-06-09 20/52 57% 3.05 RR Agari Summer Tournament 2024 Moscow
4 627 2024-03-10 20/52 43% 3.05 RR Agari Spring Tournament 2024 Moscow
5 187 2023-09-03 88/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
6 333 2022-11-06 51/76 0% 4.20 RR IX Russian Riichi Championship Perm
7 108 2022-06-12 100/112 0% 4.05 RR Moscow Riichi 2022 Moscow
8 64 2021-12-19 45/48 0% 3.10 RR Agari team tournament Moscow
9 32 2020-01-26 31/32 0% 2.70 RR The last chance: back to 2019 Moscow
10 81 2019-12-15 103/112 0% 4.05 EMA VIII Russian Riichi Championship Moscow
11 317 2018-12-16 44/64 0% 3.45 EMA White Dragon Tournament Moscow
12 0 2018-07-22 24/24 0% 2.73 RR Winner tournament. Agari season event Moscow