Oparin Konstantin
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Oct. 10, 2025 (latest changes Oct. 9, 2025).
45 place (593.21).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (717.95 * 2.90 * 0.14 + 322.58 * 3.10 * 1 + 590.91 * 2.10 * 0.14 + 843.14 * 3.05 * 0.43 + 196.08 * 3.05 * 0.57 + 772.15 * 3.65 * 0.71 + 894.74 * 3.85 * 0.86 + 990.65 * 4.60 * 0.57 + 269.66 * 3.75 * 1) / (2.90 * 0.14 + 3.10 * 1 + 2.10 * 0.14 + 3.05 * 0.43 + 3.05 * 0.57 + 3.65 * 0.71 + 3.85 * 0.86 + 4.60 * 0.57 + 3.75 * 1) = 600.4970242773226
p2 = (894.74 * 3.85 * 0.86 + 990.65 * 4.60 * 0.57 + 772.15 * 3.65 * 0.71 + 843.14 * 3.05 * 0.43) / max_coefficients = 585.9243243243243
score = 600.4970242773226 * 0.5 + 585.9243243243243 * 0.5 = 593.2106743008235
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-10-09 | 46 -> 45 | 588.71 -> 593.21 |
Agari Summer Tournament 2024: 71% -> 57% |
| 2025-10-04 | 45 -> 46 | 604.65 -> 588.71 |
Riichi over Volga: 86% -> 71% |
| 2025-09-26 | 45 | 605.88 -> 604.65 |
Autumn Agari tournament: 29% -> 14% |
| 2025-09-12 | 41 -> 45 | 633.96 -> 605.88 |
X Russian Championship: 71% -> 57% |
| 2025-09-10 | 37 -> 41 | 648.71 -> 633.96 |
Agari Spring Tournament 2024: 57% -> 43% |
| 2025-09-03 | 27 -> 37 | 685.06 -> 648.71 |
SPB Riichi Open 2023: 14% -> 0% |
| 2025-09-01 | 24 -> 27 | 695.27 -> 685.06 |
SPB Riichi Open 2024: 100% -> 86% |
| 2025-08-31 | 20 -> 24 | 695.27 | |
| 2025-08-22 | 20 | 694.47 -> 695.27 |
Mushroom League: 29% -> 14% |
| 2025-08-09 | 21 -> 20 | 688.99 -> 694.47 |
Agari Summer Tournament 2024: 86% -> 71% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 323 |
|
22/32 | 100% | 3.10 | RR | Moscow Open Riichi Marathon | Moscow | |
| 2 | 270 |
|
66/90 | 100% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 3 | 895 |
|
11/96 | 86% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 4 | 772 |
|
19/80 | 71% | 3.65 | RR | Riichi over Volga | Samara | |
| 5 | 196 |
|
42/52 | 57% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow | |
| 6 | 991 |
|
🥈 | 2/108 | 57% | 4.60 | RR | X Russian Championship | Perm |
| 7 | 843 |
|
9/52 | 43% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow | |
| 8 | 718 |
|
12/40 | 14% | 2.90 | CRR | Autumn Agari tournament | Moscow | |
| 9 | 591 |
|
10/23 | 14% | 2.10 | CRR | Mushroom League | Moscow | |
| 10 | 692 |
|
34/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg |