Matrosova Natalia

From Yekaterinburg, Russia

EMA: 15020064

Player page

Common russian riichi rating (CRR)

Rating date Nov. 21, 2025 (latest changes Nov. 19, 2025).

169 place (284.08).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95

p1 = (148.15 * 2.30 * 0.29 + 242.99 * 4.60 * 0.43 + 489.36 * 2.80 * 0.57 + 303.80 * 3.65 * 0.71 + 0 * 3.85 * 0.71 + 258.06 * 2.40 * 1 + 610.39 * 3.45 * 1 + 140.35 * 3.90 * 1) / (2.30 * 0.29 + 4.60 * 0.43 + 2.80 * 0.57 + 3.65 * 0.71 + 3.85 * 0.71 + 2.40 * 1 + 3.45 * 1 + 3.90 * 1) = 280.5143195227102

p2 = (610.39 * 3.45 * 1 + 303.80 * 3.65 * 0.71 + 489.36 * 2.80 * 0.57 + 258.06 * 2.40 * 1) / max_coefficients = 287.63812709030105

score = 280.5143195227102 * 0.5 + 287.63812709030105 * 0.5 = 284.07622330650565

Rating changes

Show

all results
Date Place Points Reason
2025-11-14 162 -> 169 292.74 -> 284.08

Guardian of the Winds: 71% -> 57%
2025-11-12 163 -> 162 292.72 -> 292.74

X Russian Championship: 57% -> 43%
2025-11-10 164 -> 163 292.72
2025-11-04 150 -> 164 313.76 -> 292.72

XI Russian Championship: 0% -> 100%
2025-11-01 153 -> 150 308.27 -> 313.76

SPB Riichi Open 2024: 86% -> 71%
2025-10-25 153 306.85 -> 308.27

Chasing Kan: 43% -> 29%
2025-10-13 155 -> 153 302.06 -> 306.85
2025-10-09 156 -> 155 302.06
2025-10-04 156 307.48 -> 302.06

Riichi over Volga: 86% -> 71%
2025-09-14 154 -> 156 316.13 -> 307.48

Guardian of the Winds: 86% -> 71%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 140 2025-11-04 50/58 100% 3.90 RR XI Russian Championship Moscow
2 610 2025-08-31 31/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
3 258 2025-03-02 24/32 100% 2.40 RR Riichi Maslenitsa (shrovetide) Yekaterinburg
4 0 2024-09-01 96/96 71% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
5 304 2024-08-04 56/80 71% 3.65 RR Riichi over Volga Samara
6 489 2024-07-14 25/48 57% 2.80 RR Guardian of the Winds Yekaterinburg
7 243 2024-05-12 82/108 43% 4.60 RR X Russian Championship Perm
8 148 2024-02-25 24/28 29% 2.30 CRR Chasing Kan Yekaterinburg
9 37 2023-11-05 27/28 0% 2.30 CRR Finding Dora Yekaterinburg
10 411 2023-09-03 64/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
11 842 2023-08-27 4/20 0% 2.10 CRR 13 tiles until tempai Yekaterinburg
12 195 2023-06-11 71/88 0% 3.75 RR Money can not buy tenpai Perm
13 672 2022-03-20 23/68 0% 3.50 RR Tenpai can't buy happiness Perm
14 609 2019-06-16 10/24 0% 2.20 RR URAL Mahjong Battle Yekaterinburg
15 211 2018-05-01 57/72 0% 3.85 EMA Haru Shanten 2018 Perm
16 70 2017-11-12 67/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten Perm
17 0 2017-07-30 24/24 0% 2.20 RR Summer EMA rules tournament 2017 Yekaterinburg