Oparin Konstantin
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date June 15, 2025 (latest changes June 15, 2025).
13 place (731.50).
how we calculated rating score
max_coefficients = (4.10 * 1 + 4.60 * 0.86 + 3.85 * 1 + 3.75 * 1) = 15.64266
p1 = (691.59 * 4 * 0.29 + 590.91 * 2.10 * 0.43 + 717.95 * 2.90 * 0.43 + 843.14 * 3.05 * 0.71 + 990.65 * 4.60 * 0.86 + 196.08 * 3.05 * 0.86 + 772.15 * 3.65 * 1 + 894.74 * 3.85 * 1 + 322.58 * 3.10 * 1) / (4 * 0.29 + 2.10 * 0.43 + 2.90 * 0.43 + 3.05 * 0.71 + 4.60 * 0.86 + 3.05 * 0.86 + 3.65 * 1 + 3.85 * 1 + 3.10 * 1) = 695.4935695362276
p2 = (990.65 * 4.60 * 0.86 + 894.74 * 3.85 * 1 + 772.15 * 3.65 * 1 + 843.14 * 3.05 * 0.71) / max_coefficients = 767.5018187443824
score = 695.4935695362276 * 0.5 + 767.5018187443824 * 0.5 = 731.4976941403049
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-06-15 | 8 -> 13 | 742.86 -> 731.50 | |
| 2025-06-11 | 9 -> 8 | 742.86 | |
| 2025-06-09 | 11 -> 9 | 738.14 -> 742.86 |
Agari Summer Tournament 2024: 100% -> 86% |
| 2025-06-08 | 10 -> 11 | 738.14 | |
| 2025-05-26 | 10 | 738.43 -> 738.14 |
Autumn Agari tournament: 57% -> 43% |
| 2025-05-12 | 8 -> 10 | 746.72 -> 738.43 |
X Russian Championship: 100% -> 86% |
| 2025-05-10 | 7 -> 8 | 759.62 -> 746.72 |
Agari Spring Tournament 2024: 86% -> 71% |
| 2025-05-03 | 7 | 759.55 -> 759.62 |
SPB Riichi Open 2023: 43% -> 29% |
| 2025-04-22 | 7 | 758.93 -> 759.55 |
Mushroom League: 57% -> 43% |
| 2025-03-26 | 7 | 759.10 -> 758.93 |
Autumn Agari tournament: 71% -> 57% |
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 | 100% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 4 | 772 |
|
19/80 | 100% | 3.65 | RR | Riichi over Volga | Samara | |
| 5 | 196 |
|
42/52 | 86% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow | |
| 6 | 991 |
|
🥈 | 2/108 | 86% | 4.60 | RR | X Russian Championship | Perm |
| 7 | 843 |
|
9/52 | 71% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow | |
| 8 | 718 |
|
12/40 | 43% | 2.90 | CRR | Autumn Agari tournament | Moscow | |
| 9 | 591 |
|
10/23 | 43% | 2.10 | CRR | Mushroom League | Moscow | |
| 10 | 692 |
|
34/108 | 29% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg |