Chichigina Natalya

From Odintsovo, Russia

EMA: 15990021

Player page

Internal rating (RR)

Rating date July 10, 2025 (latest changes July 10, 2025).

88 place (446.08).

max_coefficients = (4.10 * 1 + 4.60 * 0.86 + 3.85 * 1 + 3.75 * 1) = 15.64266

p1 = (549.02 * 3.05 * 1 + 627.45 * 3.05 * 0.57 + 186.92 * 4 * 0.14 + 627.45 * 3.05 * 0.86 + 400 * 3.85 * 1) / (3.05 * 1 + 3.05 * 0.57 + 4 * 0.14 + 3.05 * 0.86 + 3.85 * 1) = 511.906598667205

p2 = (549.02 * 3.05 * 1 + 627.45 * 3.05 * 0.86 + 400 * 3.85 * 1 + 627.45 * 3.05 * 0.57) / max_coefficients = 380.25885623033423

score = 511.906598667205 * 0.5 + 380.25885623033423 * 0.5 = 446.0827274487696

Rating changes

Show

all results
Date Place Points Reason
2025-07-10 87 -> 88 456.88 -> 446.08

Agari Spring Tournament 2024: 71% -> 57%
2025-07-03 87 449.55 -> 456.88

SPB Riichi Open 2023: 29% -> 14%
2025-06-15 82 -> 87 455.44 -> 449.55
2025-06-11 83 -> 82 455.44
2025-06-09 80 -> 83 466.52 -> 455.44

Agari Summer Tournament 2024: 100% -> 86%
2025-06-08 79 -> 80 466.52
2025-05-30 81 -> 79 466.52
2025-05-12 82 -> 81 457.65 -> 466.52
2025-05-10 79 -> 82 468.21 -> 457.65

Agari Spring Tournament 2024: 86% -> 71%
2025-05-03 74 -> 79 461.75 -> 468.21

SPB Riichi Open 2023: 43% -> 29%

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 58/96 100% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
3 627 2024-06-09 20/52 86% 3.05 RR Agari Summer Tournament 2024 Moscow
4 627 2024-03-10 20/52 57% 3.05 RR Agari Spring Tournament 2024 Moscow
5 187 2023-09-03 88/108 14% 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