Isabaev Rustam

From Chelyabinsk, Russia

Player page

Common russian riichi rating (CRR)

Rating date Nov. 2, 2025 (latest changes Nov. 1, 2025).

242 place (146.09).

max_coefficients = (4.10 * 1 + 3.50 * 1 + 3.45 * 1 + 3.25 * 1) = 14.3

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 = 93.96083916083916

score = 198.21587420541198 * 0.5 + 93.96083916083916 * 0.5 = 146.08835668312557

Rating changes

Show

all results
Date Place Points Reason
2025-11-01 243 -> 242 145.93 -> 146.09
2025-10-22 244 -> 243 145.93
2025-10-13 244 144.50 -> 145.93
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

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