Isabaev Rustam

From Chelyabinsk, Russia

Player page

Common russian riichi rating (CRR)

Rating date Sept. 7, 2025 (latest changes Sept. 5, 2025).

244 place (144.50).

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

p1 = (407.41 * 2.30 * 0.14 + 350.65 * 3.45 * 1 + 0 + 0 + 0) / (2.30 * 0.14 + 3.45 * 1 + 1 + 1 + 1) = 198.21587420541198

p2 = (350.65 * 3.45 * 1 + 407.41 * 2.30 * 0.14) / max_coefficients = 90.7864864864865

score = 198.21587420541198 * 0.5 + 90.7864864864865 * 0.5 = 144.50118034594925

Rating changes

Show

all results
Date Place Points Reason
2025-09-05 241 -> 244 153.86 -> 144.50

Finding Dora: 29% -> 14%
2025-09-03 250 -> 241 153.86
2025-09-01 252 -> 250 152.54 -> 153.86
2025-08-31 282 -> 252 52.69 -> 152.54

SPB Riichi Open 2025: 0% -> 100%
2025-08-25 283 -> 282 52.69
2025-08-04 283 52.59 -> 52.69
2025-08-03 278 -> 283 52.59
2025-08-02 277 -> 278 52.59
2025-07-30 278 -> 277 52.59
2025-07-26 273 -> 278 52.59

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 351 2025-08-31 51/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
2 407 2023-11-05 17/28 14% 2.30 CRR Finding Dora Yekaterinburg
3 211 2023-08-27 16/20 0% 2.10 CRR 13 tiles until tempai Yekaterinburg