Matrosova Natalia

From Yekaterinburg, Russia

EMA: 15020064

Player page

Internal rating (RR)

Rating date July 11, 2026 (latest changes July 7, 2026).

156 place (286.65).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997

p1 = (489.36 * 2.80 * 0.14 + 303.80 * 3.65 * 0.14 + 0 * 3.85 * 0.14 + 258.06 * 2.40 * 0.57 + 610.39 * 3.45 * 1 + 140.35 * 3.90 * 1 + 283.78 * 3.40 * 1) / (2.80 * 0.14 + 3.65 * 0.14 + 3.85 * 0.14 + 2.40 * 0.57 + 3.45 * 1 + 3.90 * 1 + 3.40 * 1) = 318.26357679521345

p2 = (610.39 * 3.45 * 1 + 283.78 * 3.40 * 1 + 140.35 * 3.90 * 1 + 258.06 * 2.40 * 0.57) / max_coefficients = 255.03672440993424

score = 318.26357679521345 * 0.5 + 255.03672440993424 * 0.5 = 286.65015060257383

Rating changes

Show

all results
Date Place Points Reason
2026-07-02 155 -> 156 288.75 -> 286.65

Riichi Maslenitsa (shrovetide): 71% -> 57%
2026-07-01 161 -> 155 282.74 -> 288.75

SPB Riichi Open 2024: 29% -> 14%
2026-06-27 164 -> 161 282.74
2026-06-26 165 -> 164 282.74
2026-06-15 166 -> 165 278.01 -> 282.74
2026-06-14 145 -> 166 289.10 -> 278.01
2026-06-13 144 -> 145 289.10
2026-06-09 145 -> 144 289.10
2026-06-04 149 -> 145 289.08 -> 289.10

Riichi over Volga: 29% -> 14%
2026-05-17 146 -> 149 289.08

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 57% 2.40 RR Riichi Maslenitsa (shrovetide) Yekaterinburg
5 0 2024-09-01 96/96 14% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
6 304 2024-08-04 56/80 14% 3.65 RR Riichi over Volga Samara
7 489 2024-07-14 25/48 14% 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