Matrosova Natalia
From Yekaterinburg, Russia
EMA: 15020064
Internal rating (RR)
Rating date Dec. 4, 2024 (latest changes Nov. 6, 2024).
113 place (280.94).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (195.40 * 3.75 * 0.57 + 411.21 * 4 * 0.71 + 242.99 * 4.60 * 1 + 489.36 * 2.80 * 1 + 303.80 * 3.65 * 1 + 0 * 3.85 * 1) / (3.75 * 0.57 + 4 * 0.71 + 4.60 * 1 + 2.80 * 1 + 3.65 * 1 + 3.85 * 1) = 260.82728851077513
p2 = (489.36 * 2.80 * 1 + 411.21 * 4 * 0.71 + 242.99 * 4.60 * 1 + 303.80 * 3.65 * 1) / max_coefficients = 301.0567823343849
score = 260.82728851077513 * 0.5 + 301.0567823343849 * 0.5 = 280.94203542258003
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2024-11-06 | 119 -> 113 | 280.94 | |
2024-11-03 | 118 -> 119 | 290.45 -> 280.94 |
SPB Riichi Open 2023: 86% -> 71% |
2024-10-13 | 109 -> 118 | 293.72 -> 290.45 | |
2024-10-11 | 111 -> 109 | 292.83 -> 293.72 |
Money can not buy tenpai: 71% -> 57% |
2024-09-03 | 110 -> 111 | 296.37 -> 292.83 |
SPB Riichi Open 2023: 100% -> 86% |
2024-09-01 | 91 -> 110 | 333.89 -> 296.37 |
SPB Riichi Open 2024: 0% -> 100% |
2024-08-11 | 91 | 330.17 -> 333.89 |
Money can not buy tenpai: 86% -> 71% |
2024-08-04 | 90 -> 91 | 312.60 -> 330.17 |
Riichi over Volga: 0% -> 100% |
2024-07-14 | 101 -> 90 | 236.78 -> 312.60 |
Guardian of the Winds: 0% -> 100% |
2024-06-11 | 109 -> 101 | 235.28 -> 236.78 |
Money can not buy tenpai: 100% -> 86% |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 0 |
|
96/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 |
2 | 304 |
|
56/80 | 100% | 3.65 | RR | Riichi over Volga |
3 | 489 |
|
25/48 | 100% | 2.80 | RR | Guardian of the Winds |
4 | 243 |
|
82/108 | 100% | 4.60 | RR | X Russian Championship |
5 | 411 |
|
64/108 | 71% | 4.00 | RR | SPB Riichi Open 2023 |
6 | 195 |
|
71/88 | 57% | 3.75 | RR | Money can not buy tenpai |
7 | 672 |
|
23/68 | 0% | 3.50 | RR | Tenpai can't buy happiness |
8 | 609 |
|
10/24 | 0% | 2.20 | RR | URAL Mahjong Battle |
9 | 211 |
|
57/72 | 0% | 3.85 | EMA | Haru Shanten 2018 |
10 | 70 |
|
67/72 | 0% | 3.25 | EMA | Perm Riichi 2017 Aki Shanten |
11 | 0 |
|
24/24 | 0% | 2.20 | RR | Summer EMA rules tournament 2017 |