Matrosova Natalia

From Yekaterinburg, Russia

EMA: 15020064

Player page

Common russian riichi rating (CRR)

Rating date July 3, 2025 (latest changes July 3, 2025).

188 place (250.16).

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

p1 = (842.11 * 2.10 * 0.14 + 411.21 * 4 * 0.14 + 37.04 * 2.30 * 0.43 + 148.15 * 2.30 * 0.57 + 242.99 * 4.60 * 0.86 + 489.36 * 2.80 * 1 + 303.80 * 3.65 * 1 + 0 * 3.85 * 1 + 258.06 * 2.40 * 1) / (2.10 * 0.14 + 4 * 0.14 + 2.30 * 0.43 + 2.30 * 0.57 + 4.60 * 0.86 + 2.80 * 1 + 3.65 * 1 + 3.85 * 1 + 2.40 * 1) = 241.00815822875848

p2 = (489.36 * 2.80 * 1 + 303.80 * 3.65 * 1 + 242.99 * 4.60 * 0.86 + 258.06 * 2.40 * 1) / max_coefficients = 259.31970649493115

score = 241.00815822875848 * 0.5 + 259.31970649493115 * 0.5 = 250.16393236184481

Rating changes

Show

all results
Date Place Points Reason
2025-07-03 189 -> 188 252.55 -> 250.16

SPB Riichi Open 2023: 29% -> 14%
2025-06-27 186 -> 189 256.87 -> 252.55

13 tiles until tempai: 29% -> 14%
2025-06-25 186 256.04 -> 256.87

Chasing Kan: 71% -> 57%
2025-06-15 176 -> 186 259.88 -> 256.04
2025-06-14 173 -> 176 259.88
2025-06-11 164 -> 173 286.50 -> 259.88

Money can not buy tenpai: 14% -> 0%
2025-05-30 165 -> 164 286.50
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%

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 57% 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 14% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
9 842 2023-08-27 4/20 14% 2.10 CRR 13 tiles until tempai Yekaterinburg
10 195 2023-06-11 71/88 0% 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