Matrosova Natalia
From Yekaterinburg, Russia
EMA: 15020064
Internal rating (RR)
Rating date March 6, 2024 (latest changes March 6, 2024).
76 place (252.36).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.57 + 4.05 * 0.29) = 11.306965
p1 = (671.64 * 3.50 * 0.14 + 195.40 * 3.75 * 1 + 411.21 * 4 * 1 + 0 + 0) / (3.50 * 0.14 + 3.75 * 1 + 4 * 1 + 1 + 1) = 264.7317356331371
p2 = (411.21 * 4 * 1 + 195.40 * 3.75 * 1 + 671.64 * 3.50 * 0.14) / max_coefficients = 239.98836115615464
score = 264.7317356331371 * 0.5 + 239.98836115615464 * 0.5 = 252.36004839464584
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-03-06 | 78 -> 76 | 246.31 -> 252.36 | |
| 2024-02-12 | 81 -> 78 | 241.03 -> 246.31 | |
| 2024-01-20 | 79 -> 81 | 263.93 -> 241.03 |
Tenpai can't buy happiness: 29% -> 14% |
| 2024-01-06 | 82 -> 79 | 258.34 -> 263.93 | |
| 2023-12-19 | 87 -> 82 | 258.34 | |
| 2023-12-12 | 90 -> 87 | 253.40 -> 258.34 | |
| 2023-11-28 | 94 -> 90 | 253.40 | |
| 2023-11-20 | 92 -> 94 | 274.32 -> 253.40 |
Tenpai can't buy happiness: 43% -> 29% |
| 2023-11-06 | 97 -> 92 | 269.11 -> 274.32 | |
| 2023-10-12 | 99 -> 97 | 264.48 -> 269.11 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 411 |
|
64/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 2 | 195 |
|
71/88 | 100% | 3.75 | RR | Money can not buy tenpai |
| 3 | 672 |
|
23/68 | 14% | 3.50 | RR | Tenpai can't buy happiness |
| 4 | 609 |
|
10/24 | 0% | 2.20 | RR | URAL Mahjong Battle |
| 5 | 211 |
|
57/72 | 0% | 3.85 | EMA | Haru Shanten 2018 |
| 6 | 70 |
|
67/72 | 0% | 3.25 | EMA | Perm Riichi 2017 Aki Shanten |
| 7 | 0 |
|
24/24 | 0% | 2.20 | RR | Summer EMA rules tournament 2017 |