Matrosova Natalia
From Yekaterinburg, Russia
EMA: 15020064
Common russian riichi rating (CRR)
Rating date March 15, 2026 (latest changes March 15, 2026).
179 place (286.81).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (242.99 * 4.60 * 0.14 + 489.36 * 2.80 * 0.29 + 303.80 * 3.65 * 0.43 + 0 * 3.85 * 0.43 + 258.06 * 2.40 * 0.86 + 610.39 * 3.45 * 1 + 140.35 * 3.90 * 1 + 283.78 * 3.40 * 1) / (4.60 * 0.14 + 2.80 * 0.29 + 3.65 * 0.43 + 3.85 * 0.43 + 2.40 * 0.86 + 3.45 * 1 + 3.90 * 1 + 3.40 * 1) = 296.0940199692886
p2 = (610.39 * 3.45 * 1 + 283.78 * 3.40 * 1 + 140.35 * 3.90 * 1 + 258.06 * 2.40 * 0.86) / max_coefficients = 277.5197324414716
score = 296.0940199692886 * 0.5 + 277.5197324414716 * 0.5 = 286.8068762053801
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-03-14 | 177 -> 179 | 290.86 -> 286.81 |
Guardian of the Winds: 43% -> 29% |
| 2026-03-12 | 179 -> 177 | 289.84 -> 290.86 |
X Russian Championship: 29% -> 14% |
| 2026-03-07 | 178 -> 179 | 289.84 | |
| 2026-03-02 | 176 -> 178 | 291.88 -> 289.84 |
Riichi Maslenitsa (shrovetide): 100% -> 86% |
| 2026-03-01 | 181 -> 176 | 287.67 -> 291.88 |
SPB Riichi Open 2024: 57% -> 43% |
| 2026-02-25 | 181 | 286.49 -> 287.67 |
Chasing Kan: 14% -> 0% |
| 2026-02-23 | 178 -> 181 | 272.85 -> 286.49 |
White Wolf Cup 2026: 0% -> 100% |
| 2026-02-16 | 180 -> 178 | 272.85 | |
| 2026-02-08 | 179 -> 180 | 272.85 | |
| 2026-02-04 | 178 -> 179 | 275.99 -> 272.85 |
Riichi over Volga: 57% -> 43% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 284 |
|
54/75 | 100% | 3.40 | RR | White Wolf Cup 2026 | Saint Petersburg | |
| 2 | 140 |
|
50/58 | 100% | 3.90 | RR | XI Russian Championship | Moscow | |
| 3 | 610 |
|
31/78 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 4 | 258 |
|
24/32 | 86% | 2.40 | RR | Riichi Maslenitsa (shrovetide) | Yekaterinburg | |
| 5 | 0 |
|
96/96 | 43% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 6 | 304 |
|
56/80 | 43% | 3.65 | RR | Riichi over Volga | Samara | |
| 7 | 489 |
|
25/48 | 29% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 8 | 243 |
|
82/108 | 14% | 4.60 | RR | X Russian Championship | Perm | |
| 9 | 148 |
|
24/28 | 0% | 2.30 | CRR | Chasing Kan | Yekaterinburg | |
| 10 | 37 |
|
27/28 | 0% | 2.30 | CRR | Finding Dora | Yekaterinburg | |
| 11 | 411 |
|
64/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 12 | 842 |
|
4/20 | 0% | 2.10 | CRR | 13 tiles until tempai | Yekaterinburg | |
| 13 | 195 |
|
71/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 14 | 667 |
|
23/67 | 0% | 3.45 | RR | Tenpai can't buy happiness | Perm | |
| 15 | 609 |
|
10/24 | 0% | 2.20 | RR | URAL Mahjong Battle | Yekaterinburg | |
| 16 | 211 |
|
57/72 | 0% | 3.85 | EMA | Haru Shanten 2018 | Perm | |
| 17 | 70 |
|
67/72 | 0% | 3.25 | EMA | Perm Riichi 2017 Aki Shanten | Perm | |
| 18 | 0 |
|
24/24 | 0% | 2.20 | RR | Summer EMA rules tournament 2017 | Yekaterinburg |