Bretslavskaya Natalya

From Tyumen, Russia

Player page

Internal rating (RR)

Rating date Dec. 10, 2025 (latest changes Dec. 9, 2025).

94 place (424.14).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95

p1 = (887.85 * 4.60 * 0.43 + 617.02 * 2.80 * 0.57 + 721.52 * 3.65 * 0.57 + 225.81 * 2.40 * 1 + 0) / (4.60 * 0.43 + 2.80 * 0.57 + 3.65 * 0.57 + 2.40 * 1 + 1) = 528.2469314095367

p2 = (887.85 * 4.60 * 0.43 + 721.52 * 3.65 * 0.57 + 617.02 * 2.80 * 0.57 + 225.81 * 2.40 * 1) / max_coefficients = 320.02541806020076

score = 528.2469314095367 * 0.5 + 320.02541806020076 * 0.5 = 424.13617473486875

Rating changes

Show

all results
Date Place Points Reason
2025-12-09 95 -> 94 424.14
2025-12-07 94 -> 95 424.14
2025-12-04 88 -> 94 441.98 -> 424.14

Riichi over Volga: 71% -> 57%
2025-11-14 83 -> 88 451.81 -> 441.98

Guardian of the Winds: 71% -> 57%
2025-11-12 73 -> 83 482.00 -> 451.81

X Russian Championship: 57% -> 43%
2025-11-10 74 -> 73 482.00
2025-11-04 71 -> 74 491.11 -> 482.00
2025-11-01 71 490.38 -> 491.11
2025-10-13 73 -> 71 484.03 -> 490.38
2025-10-09 74 -> 73 484.03

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 226 2025-03-02 25/32 100% 2.40 RR Riichi Maslenitsa (shrovetide) Yekaterinburg
2 722 2024-08-04 23/80 57% 3.65 RR Riichi over Volga Samara
3 617 2024-07-14 19/48 57% 2.80 RR Guardian of the Winds Yekaterinburg
4 888 2024-05-12 13/108 43% 4.60 RR X Russian Championship Perm
5 724 2023-06-11 25/88 0% 3.75 RR Money can not buy tenpai Perm