Matrosova Natalia

From Yekaterinburg, Russia

EMA: 15020064

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Internal rating (RR)

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

130 place (351.99).

max_coefficients = (4.71 * 1 + 3.40 * 1 + 3.40 * 1 + 3.40 * 1) = 14.91

p1 = (258.06 * 2.40 * 0.29 + 610.39 * 3.45 * 0.71 + 140.35 * 3.90 * 0.86 + 283.78 * 3.40 * 1 + 563.38 * 3.40 * 1) / (2.40 * 0.29 + 3.45 * 0.71 + 3.90 * 0.86 + 3.40 * 1 + 3.40 * 1) = 378.45194036879633

p2 = (563.38 * 3.40 * 1 + 610.39 * 3.45 * 0.71 + 283.78 * 3.40 * 1 + 140.35 * 3.90 * 0.86) / max_coefficients = 325.533199195171

score = 378.45194036879633 * 0.5 + 325.533199195171 * 0.5 = 351.99256978198366

Rating changes

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all results
Date Place Points Reason
2026-11-04 133 -> 130 344.46 -> 351.99

XI Russian Championship: 100% -> 86%
2026-11-02 134 -> 133 343.12 -> 344.46

Riichi Maslenitsa (shrovetide): 43% -> 29%
2026-10-31 127 -> 134 356.97 -> 343.12

SPB Riichi Open 2025: 86% -> 71%
2026-10-27 129 -> 127 356.97
2026-10-13 131 -> 129 356.97
2026-09-26 132 -> 131 356.97
2026-09-13 133 -> 132 356.97
2026-09-07 134 -> 133 356.97
2026-09-06 169 -> 134 262.05 -> 356.97

Sunset Wolf Cup 2026: 0% -> 100%
2026-09-02 169 264.46 -> 262.05

Riichi Maslenitsa (shrovetide): 57% -> 43%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 563 2026-09-06 32/72 100% 3.40 RR Sunset Wolf Cup 2026 Saint Petersburg
2 284 2026-02-23 54/75 100% 3.40 RR White Wolf Cup 2026 Saint Petersburg
3 140 2025-11-04 50/58 86% 3.90 RR XI Russian Championship Moscow
4 610 2025-08-31 31/78 71% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
5 258 2025-03-02 24/32 29% 2.40 RR Riichi Maslenitsa (shrovetide) Yekaterinburg
6 0 2024-09-01 96/96 0% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
7 304 2024-08-04 56/80 0% 3.65 RR Riichi over Volga Samara
8 489 2024-07-14 25/48 0% 2.80 RR Guardian of the Winds Yekaterinburg
9 243 2024-05-12 82/108 0% 4.60 RR X Russian Championship Perm
10 411 2023-09-03 64/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
11 195 2023-06-11 71/88 0% 3.75 RR Money can not buy tenpai Perm
12 667 2022-03-20 23/67 0% 3.45 RR Tenpai can't buy happiness Perm
13 609 2019-06-16 10/24 0% 2.20 RR URAL Mahjong Battle Yekaterinburg
14 211 2018-05-01 57/72 0% 3.85 EMA Haru Shanten 2018 Perm
15 70 2017-11-12 67/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten Perm
16 0 2017-07-30 24/24 0% 2.20 RR Summer EMA rules tournament 2017 Yekaterinburg