Matrosova Natalia

From Yekaterinburg, Russia

EMA: 15020064

Player page

Common russian riichi rating (CRR)

Rating date Jan. 7, 2026 (latest changes Jan. 7, 2026).

181 place (283.95).

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

p1 = (148.15 * 2.30 * 0.14 + 242.99 * 4.60 * 0.43 + 489.36 * 2.80 * 0.57 + 303.80 * 3.65 * 0.57 + 0 * 3.85 * 0.57 + 258.06 * 2.40 * 1 + 610.39 * 3.45 * 1 + 140.35 * 3.90 * 1) / (2.30 * 0.14 + 4.60 * 0.43 + 2.80 * 0.57 + 3.65 * 0.57 + 3.85 * 0.57 + 2.40 * 1 + 3.45 * 1 + 3.90 * 1) = 290.86539935826136

p2 = (610.39 * 3.45 * 1 + 489.36 * 2.80 * 0.57 + 303.80 * 3.65 * 0.57 + 258.06 * 2.40 * 1) / max_coefficients = 277.0387959866221

score = 290.86539935826136 * 0.5 + 277.0387959866221 * 0.5 = 283.9520976724417

Rating changes

Show

all results
Date Place Points Reason
2026-01-03 180 -> 181 283.95
2026-01-01 184 -> 180 279.62 -> 283.95

SPB Riichi Open 2024: 71% -> 57%
2025-12-27 177 -> 184 279.62
2025-12-25 177 278.45 -> 279.62

Chasing Kan: 29% -> 14%
2025-12-13 178 -> 177 278.45
2025-12-07 173 -> 178 278.45
2025-12-06 170 -> 173 278.45
2025-12-04 168 -> 170 284.08 -> 278.45

Riichi over Volga: 71% -> 57%
2025-11-25 171 -> 168 284.08
2025-11-22 169 -> 171 284.08

Tournaments

# Base rank Date Place Power Coefficient Rating 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 57% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
5 304 2024-08-04 56/80 57% 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 14% 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