Matrosova Natalia

From Yekaterinburg, Russia

EMA: 15020064

Player page

Internal rating (RR)

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

114 place (272.17).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85

p1 = (195.40 * 3.75 * 0.43 + 411.21 * 4 * 0.57 + 242.99 * 4.60 * 1 + 489.36 * 2.80 * 1 + 303.80 * 3.65 * 1 + 0 * 3.85 * 1) / (3.75 * 0.43 + 4 * 0.57 + 4.60 * 1 + 2.80 * 1 + 3.65 * 1 + 3.85 * 1) = 258.11731589407674

p2 = (489.36 * 2.80 * 1 + 242.99 * 4.60 * 1 + 303.80 * 3.65 * 1 + 411.21 * 4 * 0.57) / max_coefficients = 286.22712933753945

score = 258.11731589407674 * 0.5 + 286.22712933753945 * 0.5 = 272.1722226158081

Rating changes

Show

all results
Date Place Points Reason
2025-01-03 112 -> 114 281.85 -> 272.17

SPB Riichi Open 2023: 71% -> 57%
2024-12-11 114 -> 112 280.94 -> 281.85

Money can not buy tenpai: 57% -> 43%
2024-11-06 120 -> 114 280.94
2024-11-03 119 -> 120 290.45 -> 280.94

SPB Riichi Open 2023: 86% -> 71%
2024-10-13 110 -> 119 293.72 -> 290.45
2024-10-11 112 -> 110 292.83 -> 293.72

Money can not buy tenpai: 71% -> 57%
2024-09-03 111 -> 112 296.37 -> 292.83

SPB Riichi Open 2023: 100% -> 86%
2024-09-01 92 -> 111 333.89 -> 296.37

SPB Riichi Open 2024: 0% -> 100%
2024-08-11 92 330.17 -> 333.89

Money can not buy tenpai: 86% -> 71%
2024-08-04 91 -> 92 312.60 -> 330.17

Riichi over Volga: 0% -> 100%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 0 2024-09-01 96/96 100% 3.85 RR SPB Riichi Open 2024
2 304 2024-08-04 56/80 100% 3.65 RR Riichi over Volga
3 489 2024-07-14 25/48 100% 2.80 RR Guardian of the Winds
4 243 2024-05-12 82/108 100% 4.60 RR X Russian Championship
5 411 2023-09-03 64/108 57% 4.00 RR SPB Riichi Open 2023
6 195 2023-06-11 71/88 43% 3.75 RR Money can not buy tenpai
7 672 2022-03-20 23/68 0% 3.50 RR Tenpai can't buy happiness
8 609 2019-06-16 10/24 0% 2.20 RR URAL Mahjong Battle
9 211 2018-05-01 57/72 0% 3.85 EMA Haru Shanten 2018
10 70 2017-11-12 67/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten
11 0 2017-07-30 24/24 0% 2.20 RR Summer EMA rules tournament 2017