Zyryanov Denis
From Novosibirsk, Russia
Common russian riichi rating (CRR)
Rating date Aug. 18, 2025 (latest changes Aug. 9, 2025).
255 place (137.57).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2
p1 = (65.42 * 4.60 * 0.71 + 583.33 * 2.20 * 1 + 0 + 0 + 0) / (4.60 * 0.71 + 2.20 * 1 + 1 + 1 + 1) = 176.5647942793709
p2 = (583.33 * 2.20 * 1 + 65.42 * 4.60 * 0.71) / max_coefficients = 98.5717105263158
score = 176.5647942793709 * 0.5 + 98.5717105263158 * 0.5 = 137.56825240284334
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-08-04 | 255 | 137.09 -> 137.57 | |
| 2025-08-03 | 249 -> 255 | 137.09 | |
| 2025-07-30 | 250 -> 249 | 137.09 | |
| 2025-07-26 | 247 -> 250 | 137.09 | |
| 2025-07-13 | 245 -> 247 | 137.09 | |
| 2025-07-12 | 245 | 133.55 -> 137.09 |
X Russian Championship: 86% -> 71% |
| 2025-07-03 | 246 -> 245 | 133.55 | |
| 2025-06-22 | 247 -> 246 | 133.55 | |
| 2025-06-15 | 239 -> 247 | 135.01 -> 133.55 | |
| 2025-06-14 | 233 -> 239 | 135.01 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 583 |
|
11/25 | 100% | 2.20 | CRR | Akademgorodok Riichi Mahjong Tournament 2025 | Novosibirsk | |
| 2 | 65 |
|
101/108 | 71% | 4.60 | RR | X Russian Championship | Perm | |
| 3 | 345 |
|
58/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 4 | 547 |
|
35/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm |