Burakov Ivan
From Tyumen, Russia
Common russian riichi rating (CRR)
Rating date June 14, 2025 (latest changes June 14, 2025).
224 place (168.92).
how we calculated rating score
max_coefficients = (4.60 * 0.86 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.19266
p1 = (148.15 * 2.30 * 0.43 + 608.70 * 2.20 * 1 + 0 + 0 + 0) / (2.30 * 0.43 + 2.20 * 1 + 1 + 1 + 1) = 240.09421608915932
p2 = (608.70 * 2.20 * 1 + 148.15 * 2.30 * 0.43) / max_coefficients = 97.75575837279318
score = 240.09421608915932 * 0.5 + 97.75575837279318 * 0.5 = 168.92498723097626
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2025-06-14 | 217 -> 224 | 168.92 | |
2025-06-11 | 217 | 185.33 -> 168.92 |
Money can not buy tenpai: 14% -> 0% |
2025-05-26 | 218 -> 217 | 185.33 | |
2025-05-17 | 216 -> 218 | 185.33 | |
2025-05-12 | 215 -> 216 | 183.23 -> 185.33 | |
2025-05-05 | 216 -> 215 | 181.48 -> 183.23 |
Finding Dora: 57% -> 43% |
2025-05-03 | 213 -> 216 | 181.48 | |
2025-04-27 | 209 -> 213 | 181.48 | |
2025-04-26 | 208 -> 209 | 181.48 | |
2025-04-22 | 210 -> 208 | 181.48 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
---|---|---|---|---|---|---|---|---|
1 | 609 |
|
10/24 | 100% | 2.20 | CRR | Tails, money, two renchans | Tyumen |
2 | 148 |
|
24/28 | 43% | 2.30 | CRR | Finding Dora | Yekaterinburg |
3 | 103 |
|
79/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm |