Oparin Konstantin
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Sept. 6, 2024 (latest changes Sept. 6, 2024).
3 place (800.80).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.65 * 1 + 4 * 0.86) = 15.5284
p1 = (691.59 * 4 * 0.86 + 590.91 * 2.10 * 1 + 717.95 * 2.90 * 1 + 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) / (4 * 0.86 + 2.10 * 1 + 2.90 * 1 + 3.05 * 1 + 4.60 * 1 + 3.05 * 1 + 3.65 * 1 + 3.85 * 1) = 739.1998768232412
p2 = (990.65 * 4.60 * 1 + 894.74 * 3.85 * 1 + 772.15 * 3.65 * 1 + 843.14 * 3.05 * 1) / max_coefficients = 862.3985729373278
score = 739.1998768232412 * 0.5 + 862.3985729373278 * 0.5 = 800.7992248802846
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-09-03 | 3 | 791.04 -> 800.80 |
SPB Riichi Open 2023: 100% -> 86% |
| 2024-09-01 | 5 -> 3 | 771.66 -> 791.04 |
SPB Riichi Open 2024: 0% -> 100% |
| 2024-08-11 | 4 -> 5 | 767.25 -> 771.66 | |
| 2024-08-04 | 5 -> 4 | 753.54 -> 767.25 |
Riichi over Volga: 0% -> 100% |
| 2024-07-14 | 4 -> 5 | 753.54 | |
| 2024-07-06 | 5 -> 4 | 753.54 | |
| 2024-06-18 | 4 -> 5 | 753.54 | |
| 2024-06-11 | 7 -> 4 | 739.52 -> 753.54 | |
| 2024-06-09 | 1 -> 7 | 785.80 -> 739.52 |
Agari Summer Tournament 2024: 0% -> 100% |
| 2024-05-12 | 9 -> 1 | 647.93 -> 785.80 |
X Russian Championship: 0% -> 100% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 895 |
|
11/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 |
| 2 | 772 |
|
19/80 | 100% | 3.65 | RR | Riichi over Volga |
| 3 | 196 |
|
42/52 | 100% | 3.05 | RR | Agari Summer Tournament 2024 |
| 4 | 991 |
|
2/108 | 100% | 4.60 | RR | X Russian Championship |
| 5 | 843 |
|
9/52 | 100% | 3.05 | RR | Agari Spring Tournament 2024 |
| 6 | 718 |
|
12/40 | 100% | 2.90 | CRR | Autumn Agari tournament |
| 7 | 591 |
|
10/23 | 100% | 2.10 | CRR | Mushroom League |
| 8 | 692 |
|
34/108 | 86% | 4.00 | RR | SPB Riichi Open 2023 |