Matrosova Natalia

From Yekaterinburg, Russia

EMA: 15020064

Player page

Common russian riichi rating (CRR)

Rating date May 20, 2025 (latest changes May 19, 2025).

165 place (286.50).

max_coefficients = (4.60 * 0.86 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.19266

p1 = (195.40 * 3.75 * 0.14 + 842.11 * 2.10 * 0.29 + 411.21 * 4 * 0.29 + 37.04 * 2.30 * 0.43 + 148.15 * 2.30 * 0.71 + 242.99 * 4.60 * 0.86 + 489.36 * 2.80 * 1 + 303.80 * 3.65 * 1 + 258.06 * 2.40 * 1) / (3.75 * 0.14 + 2.10 * 0.29 + 4 * 0.29 + 2.30 * 0.43 + 2.30 * 0.71 + 4.60 * 0.86 + 2.80 * 1 + 3.65 * 1 + 2.40 * 1) = 306.0026920941978

p2 = (489.36 * 2.80 * 1 + 303.80 * 3.65 * 1 + 242.99 * 4.60 * 0.86 + 258.06 * 2.40 * 1) / max_coefficients = 267.00064373190736

score = 306.0026920941978 * 0.5 + 267.00064373190736 * 0.5 = 286.5016679130526

Rating changes

Show

all results
Date Place Points Reason
2025-05-19 166 -> 165 286.50
2025-05-17 164 -> 166 286.50
2025-05-12 165 -> 164 284.88 -> 286.50

X Russian Championship: 100% -> 86%
2025-05-10 164 -> 165 284.88
2025-05-05 164 282.53 -> 284.88

Finding Dora: 57% -> 43%
2025-05-03 160 -> 164 286.90 -> 282.53

SPB Riichi Open 2023: 43% -> 29%
2025-04-27 151 -> 160 292.71 -> 286.90

13 tiles until tempai: 43% -> 29%
2025-04-26 148 -> 151 292.71
2025-04-25 148 291.37 -> 292.71

Chasing Kan: 86% -> 71%
2025-04-13 146 -> 148 291.37

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 258 2025-03-02 24/32 100% 2.40 RR Riichi Maslenitsa (shrovetide) Yekaterinburg
2 0 2024-09-01 96/96 100% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
3 304 2024-08-04 56/80 100% 3.65 RR Riichi over Volga Samara
4 489 2024-07-14 25/48 100% 2.80 RR Guardian of the Winds Yekaterinburg
5 243 2024-05-12 82/108 86% 4.60 RR X Russian Championship Perm
6 148 2024-02-25 24/28 71% 2.30 CRR Chasing Kan Yekaterinburg
7 37 2023-11-05 27/28 43% 2.30 CRR Finding Dora Yekaterinburg
8 411 2023-09-03 64/108 29% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
9 842 2023-08-27 4/20 29% 2.10 CRR 13 tiles until tempai Yekaterinburg
10 195 2023-06-11 71/88 14% 3.75 RR Money can not buy tenpai Perm
11 672 2022-03-20 23/68 0% 3.50 RR Tenpai can't buy happiness Perm
12 609 2019-06-16 10/24 0% 2.20 RR URAL Mahjong Battle Yekaterinburg
13 211 2018-05-01 57/72 0% 3.85 EMA Haru Shanten 2018 Perm
14 70 2017-11-12 67/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten Perm
15 0 2017-07-30 24/24 0% 2.20 RR Summer EMA rules tournament 2017 Yekaterinburg