Bretslavskaya Natalya

From Tyumen, Russia

Player page

Internal rating (RR)

Rating date Sept. 14, 2025 (latest changes Sept. 14, 2025).

69 place (500.43).

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

p1 = (887.85 * 4.60 * 0.57 + 617.02 * 2.80 * 0.71 + 721.52 * 3.65 * 0.86 + 225.81 * 2.40 * 1 + 0) / (4.60 * 0.57 + 2.80 * 0.71 + 3.65 * 0.86 + 2.40 * 1 + 1) = 570.6677350642808

p2 = (887.85 * 4.60 * 0.57 + 721.52 * 3.65 * 0.86 + 617.02 * 2.80 * 0.71 + 225.81 * 2.40 * 1) / max_coefficients = 430.19459459459455

score = 570.6677350642808 * 0.5 + 430.19459459459455 * 0.5 = 500.43116482943765

Rating changes

Show

all results
Date Place Points Reason
2025-09-14 68 -> 69 509.57 -> 500.43

Guardian of the Winds: 86% -> 71%
2025-09-12 59 -> 68 537.78 -> 509.57

X Russian Championship: 71% -> 57%
2025-09-10 60 -> 59 537.78
2025-09-03 62 -> 60 537.78
2025-09-01 63 -> 62 531.38 -> 537.78
2025-08-31 56 -> 63 531.38
2025-08-09 57 -> 56 531.38
2025-08-04 53 -> 57 544.03 -> 531.38

Riichi over Volga: 100% -> 86%
2025-07-14 52 -> 53 552.41 -> 544.03

Guardian of the Winds: 100% -> 86%
2025-07-13 51 -> 52 552.41

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 71% 2.80 RR Guardian of the Winds Yekaterinburg
4 888 2024-05-12 13/108 57% 4.60 RR X Russian Championship Perm
5 724 2023-06-11 25/88 0% 3.75 RR Money can not buy tenpai Perm