Oparin Konstantin
From Moscow, Russia
Internal rating (RR)
Rating date Oct. 9, 2026 (latest changes Oct. 8, 2026).
67 place (548.72).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41
p1 = (269.66 * 3.75 * 0.14 + 322.58 * 3.10 * 0.29 + 160 * 3.10 * 1 + 703.70 * 2.45 * 1 + 587.41 * 4.71 * 1 + 929.58 * 3.40 * 1) / (3.75 * 0.14 + 3.10 * 0.29 + 3.10 * 1 + 2.45 * 1 + 4.71 * 1 + 3.40 * 1) = 568.7447804585007
p2 = (929.58 * 3.40 * 1 + 587.41 * 4.71 * 1 + 703.70 * 2.45 * 1 + 160 * 3.10 * 1) / max_coefficients = 528.704737183647
score = 568.7447804585007 * 0.5 + 528.704737183647 * 0.5 = 548.7247588210739
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-10-08 | 66 -> 67 | 548.72 | |
| 2026-10-03 | 65 -> 66 | 548.72 | |
| 2026-10-02 | 66 -> 65 | 548.72 | |
| 2026-09-07 | 68 -> 66 | 545.21 -> 548.72 |
Moscow Open Riichi Marathon: 43% -> 29% |
| 2026-09-06 | 111 -> 68 | 404.99 -> 545.21 |
Sunset Wolf Cup 2026: 0% -> 100% |
| 2026-09-01 | 104 -> 111 | 416.52 -> 404.99 |
SPB Riichi Open 2024: 14% -> 0% |
| 2026-08-31 | 105 -> 104 | 415.95 -> 416.52 | |
| 2026-08-16 | 101 -> 105 | 415.95 | |
| 2026-08-15 | 101 | 414.65 -> 415.95 | |
| 2026-08-13 | 103 -> 101 | 410.44 -> 414.65 |
Moscow Riichi 2024: 29% -> 14% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 930 |
|
6/72 | 100% | 3.40 | RR | Sunset Wolf Cup 2026 | Saint Petersburg | |
| 2 | 587 |
|
60/144 | 100% | 4.71 | RR | XII Russian Championship | Samara | |
| 3 | 704 |
|
9/28 | 100% | 2.45 | RR | Hatiko under the sakura | Korolyov | |
| 4 | 160 |
|
43/51 | 100% | 3.10 | RR | Moscow Riichi 2026 | Moscow | |
| 5 | 323 |
|
22/32 | 29% | 3.10 | RR | Moscow Open Riichi Marathon | Moscow | |
| 6 | 270 |
|
66/90 | 14% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 7 | 895 |
|
11/96 | 0% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 8 | 772 |
|
19/80 | 0% | 3.65 | RR | Riichi over Volga | Samara | |
| 9 | 196 |
|
42/52 | 0% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow | |
| 10 | 991 |
|
🥈 | 2/108 | 0% | 4.60 | RR | X Russian Championship | Perm |
| 11 | 843 |
|
9/52 | 0% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow | |
| 12 | 692 |
|
34/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg |