Oparin Konstantin
From Moscow, Russia
Internal rating (RR)
Rating date Feb. 22, 2025 (latest changes Feb. 16, 2025).
9 place (744.04).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (691.59 * 4 * 0.57 + 843.14 * 3.05 * 1 + 990.65 * 4.60 * 1 + 196.08 * 3.05 * 1 + 772.15 * 3.65 * 1 + 894.74 * 3.85 * 1 + 269.66 * 3.75 * 1 + 322.58 * 3.10 * 1) / (4 * 0.57 + 3.05 * 1 + 4.60 * 1 + 3.05 * 1 + 3.65 * 1 + 3.85 * 1 + 3.75 * 1 + 3.10 * 1) = 643.177760868611
p2 = (990.65 * 4.60 * 1 + 894.74 * 3.85 * 1 + 772.15 * 3.65 * 1 + 843.14 * 3.05 * 1) / max_coefficients = 844.9003154574133
score = 643.177760868611 * 0.5 + 844.9003154574133 * 0.5 = 744.0390381630122
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-02-16 | 8 -> 9 | 744.04 | |
| 2025-02-02 | 7 -> 8 | 744.04 | |
| 2025-01-26 | 6 -> 7 | 744.04 | |
| 2025-01-07 | 5 -> 6 | 764.54 -> 744.04 |
Moscow Open Riichi Marathon: 0% -> 100% |
| 2025-01-03 | 6 -> 5 | 764.63 -> 764.54 |
SPB Riichi Open 2023: 71% -> 57% |
| 2024-11-03 | 6 | 764.71 -> 764.63 |
SPB Riichi Open 2023: 86% -> 71% |
| 2024-10-13 | 2 -> 6 | 809.42 -> 764.71 |
Moscow Riichi 2024: 0% -> 100% |
| 2024-09-03 | 2 | 799.33 -> 809.42 |
SPB Riichi Open 2023: 100% -> 86% |
| 2024-09-01 | 3 -> 2 | 778.17 -> 799.33 |
SPB Riichi Open 2024: 0% -> 100% |
| 2024-08-11 | 3 | 773.76 -> 778.17 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 323 |
|
22/32 | 100% | 3.10 | RR | Moscow Open Riichi Marathon |
| 2 | 270 |
|
66/90 | 100% | 3.75 | RR | Moscow Riichi 2024 |
| 3 | 895 |
|
11/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 |
| 4 | 772 |
|
19/80 | 100% | 3.65 | RR | Riichi over Volga |
| 5 | 196 |
|
42/52 | 100% | 3.05 | RR | Agari Summer Tournament 2024 |
| 6 | 991 |
|
2/108 | 100% | 4.60 | RR | X Russian Championship |
| 7 | 843 |
|
9/52 | 100% | 3.05 | RR | Agari Spring Tournament 2024 |
| 8 | 692 |
|
34/108 | 57% | 4.00 | RR | SPB Riichi Open 2023 |