Bretslavskaya Natalya

From Tyumen, Russia

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Common russian riichi rating (CRR)

Rating date Sept. 4, 2025 (latest changes Sept. 3, 2025).

64 place (550.49).

max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8

p1 = (740.74 * 2.30 * 0.29 + 222.22 * 2.30 * 0.43 + 887.85 * 4.60 * 0.71 + 617.02 * 2.80 * 0.86 + 721.52 * 3.65 * 0.86 + 225.81 * 2.40 * 1) / (2.30 * 0.29 + 2.30 * 0.43 + 4.60 * 0.71 + 2.80 * 0.86 + 3.65 * 0.86 + 2.40 * 1) = 614.6878365150718

p2 = (887.85 * 4.60 * 0.71 + 721.52 * 3.65 * 0.86 + 617.02 * 2.80 * 0.86 + 225.81 * 2.40 * 1) / max_coefficients = 486.2979729729729

score = 614.6878365150718 * 0.5 + 486.2979729729729 * 0.5 = 550.4929047440223

Rating changes

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all results
Date Place Points Reason
2025-09-03 65 -> 64 550.49
2025-09-01 65 544.09 -> 550.49
2025-08-31 61 -> 65 544.09
2025-08-25 64 -> 61 539.21 -> 544.09

Chasing Kan: 57% -> 43%
2025-08-04 61 -> 64 551.37 -> 539.21

Riichi over Volga: 100% -> 86%
2025-07-30 62 -> 61 551.37
2025-07-26 61 -> 62 551.37
2025-07-19 62 -> 61 551.37
2025-07-14 62 559.52 -> 551.37

Guardian of the Winds: 100% -> 86%
2025-07-13 61 -> 62 559.52

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 226 2025-03-02 25/32 100% 2.40 RR Riichi Maslenitsa (shrovetide) Yekaterinburg
2 722 2024-08-04 23/80 86% 3.65 RR Riichi over Volga Samara
3 617 2024-07-14 19/48 86% 2.80 RR Guardian of the Winds Yekaterinburg
4 888 2024-05-12 13/108 71% 4.60 RR X Russian Championship Perm
5 222 2024-02-25 22/28 43% 2.30 CRR Chasing Kan Yekaterinburg
6 741 2023-11-05 8/28 29% 2.30 CRR Finding Dora Yekaterinburg
7 724 2023-06-11 25/88 0% 3.75 RR Money can not buy tenpai Perm