Matrosova Natalia

From Yekaterinburg, Russia

EMA: 15020064

Player page

Internal rating (RR)

Rating date May 12, 2026 (latest changes May 12, 2026).

145 place (291.48).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85

p1 = (489.36 * 2.80 * 0.29 + 303.80 * 3.65 * 0.29 + 0 * 3.85 * 0.29 + 258.06 * 2.40 * 0.71 + 610.39 * 3.45 * 1 + 140.35 * 3.90 * 1 + 283.78 * 3.40 * 1) / (2.80 * 0.29 + 3.65 * 0.29 + 3.85 * 0.29 + 2.40 * 0.71 + 3.45 * 1 + 3.90 * 1 + 3.40 * 1) = 309.51779804413957

p2 = (610.39 * 3.45 * 1 + 283.78 * 3.40 * 1 + 140.35 * 3.90 * 1 + 258.06 * 2.40 * 0.71) / max_coefficients = 273.43299663299666

score = 309.51779804413957 * 0.5 + 273.43299663299666 * 0.5 = 291.4753973385681

Rating changes

Show

all results
Date Place Points Reason
2026-05-12 153 -> 145 290.11 -> 291.48

X Russian Championship: 14% -> 0%
2026-05-03 150 -> 153 289.20 -> 290.11
2026-05-02 150 291.65 -> 289.20

Riichi Maslenitsa (shrovetide): 86% -> 71%
2026-05-01 156 -> 150 286.69 -> 291.65

SPB Riichi Open 2024: 43% -> 29%
2026-04-19 152 -> 156 286.69
2026-04-16 156 -> 152 286.69
2026-04-13 157 -> 156 286.69
2026-04-11 154 -> 157 286.69
2026-04-09 152 -> 154 286.69
2026-04-05 150 -> 152 286.69

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 284 2026-02-23 54/75 100% 3.40 RR White Wolf Cup 2026 Saint Petersburg
2 140 2025-11-04 50/58 100% 3.90 RR XI Russian Championship Moscow
3 610 2025-08-31 31/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
4 258 2025-03-02 24/32 71% 2.40 RR Riichi Maslenitsa (shrovetide) Yekaterinburg
5 0 2024-09-01 96/96 29% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
6 304 2024-08-04 56/80 29% 3.65 RR Riichi over Volga Samara
7 489 2024-07-14 25/48 29% 2.80 RR Guardian of the Winds Yekaterinburg
8 243 2024-05-12 82/108 0% 4.60 RR X Russian Championship Perm
9 411 2023-09-03 64/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
10 195 2023-06-11 71/88 0% 3.75 RR Money can not buy tenpai Perm
11 667 2022-03-20 23/67 0% 3.45 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