Oparin Konstantin
From Moscow, Russia
Internal rating (RR)
Rating date July 10, 2025 (latest changes July 10, 2025).
21 place (685.46).
how we calculated rating score
max_coefficients = (4.10 * 1 + 4.60 * 0.86 + 3.85 * 1 + 3.75 * 1) = 15.64266
p1 = (843.14 * 3.05 * 0.57 + 269.66 * 3.75 * 1 + 691.59 * 4 * 0.14 + 196.08 * 3.05 * 0.86 + 894.74 * 3.85 * 1 + 322.58 * 3.10 * 1 + 990.65 * 4.60 * 0.86 + 772.15 * 3.65 * 1) / (3.05 * 0.57 + 3.75 * 1 + 4 * 0.14 + 3.05 * 0.86 + 3.85 * 1 + 3.10 * 1 + 4.60 * 0.86 + 3.65 * 1) = 626.9025461017601
p2 = (990.65 * 4.60 * 0.86 + 894.74 * 3.85 * 1 + 772.15 * 3.65 * 1 + 843.14 * 3.05 * 0.57) / max_coefficients = 744.009650532582
score = 626.9025461017601 * 0.5 + 744.009650532582 * 0.5 = 685.456098317171
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-07-10 | 18 -> 21 | 699.19 -> 685.46 |
Agari Spring Tournament 2024: 71% -> 57% |
| 2025-07-03 | 18 | 699.91 -> 699.19 |
SPB Riichi Open 2023: 29% -> 14% |
| 2025-06-15 | 12 -> 18 | 711.28 -> 699.91 | |
| 2025-06-09 | 14 -> 12 | 707.42 -> 711.28 |
Agari Summer Tournament 2024: 100% -> 86% |
| 2025-05-12 | 12 -> 14 | 716.33 -> 707.42 |
X Russian Championship: 100% -> 86% |
| 2025-05-10 | 11 -> 12 | 729.68 -> 716.33 |
Agari Spring Tournament 2024: 86% -> 71% |
| 2025-05-03 | 10 -> 11 | 730.27 -> 729.68 |
SPB Riichi Open 2023: 43% -> 29% |
| 2025-03-10 | 9 -> 10 | 743.52 -> 730.27 |
Agari Spring Tournament 2024: 100% -> 86% |
| 2025-03-03 | 9 | 744.04 -> 743.52 |
SPB Riichi Open 2023: 57% -> 43% |
| 2025-02-16 | 8 -> 9 | 744.04 |
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 | 57% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow |
| 8 | 692 |
|
34/108 | 14% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg |