Oparin Konstantin

From Moscow, Russia

Player page

Internal rating (RR)

Rating date Dec. 10, 2025 (latest changes Dec. 9, 2025).

61 place (525.18).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95

p1 = (843.14 * 3.05 * 0.29 + 990.65 * 4.60 * 0.43 + 196.08 * 3.05 * 0.43 + 772.15 * 3.65 * 0.57 + 894.74 * 3.85 * 0.71 + 269.66 * 3.75 * 0.86 + 322.58 * 3.10 * 1) / (3.05 * 0.29 + 4.60 * 0.43 + 3.05 * 0.43 + 3.65 * 0.57 + 3.85 * 0.71 + 3.75 * 0.86 + 3.10 * 1) = 580.5157070620751

p2 = (894.74 * 3.85 * 0.71 + 990.65 * 4.60 * 0.43 + 772.15 * 3.65 * 0.57 + 322.58 * 3.10 * 1) / max_coefficients = 469.8408026755853

score = 580.5157070620751 * 0.5 + 469.8408026755853 * 0.5 = 525.1782548688302

Rating changes

Show

all results
Date Place Points Reason
2025-12-09 64 -> 61 519.86 -> 525.18

Agari Summer Tournament 2024: 57% -> 43%
2025-12-07 62 -> 64 519.86
2025-12-04 60 -> 62 536.57 -> 519.86

Riichi over Volga: 71% -> 57%
2025-11-30 58 -> 60 536.57
2025-11-14 59 -> 58 536.57
2025-11-12 52 -> 59 566.38 -> 536.57

X Russian Championship: 57% -> 43%
2025-11-10 50 -> 52 572.95 -> 566.38

Agari Spring Tournament 2024: 43% -> 29%
2025-11-04 46 -> 50 585.38 -> 572.95
2025-11-01 41 -> 46 606.07 -> 585.38

SPB Riichi Open 2024: 86% -> 71%
2025-10-13 45 -> 41 591.97 -> 606.07

Moscow Riichi 2024: 100% -> 86%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 323 2025-01-07 22/32 100% 3.10 RR Moscow Open Riichi Marathon Moscow
2 270 2024-10-13 66/90 86% 3.75 RR Moscow Riichi 2024 Moscow
3 895 2024-09-01 11/96 71% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
4 772 2024-08-04 19/80 57% 3.65 RR Riichi over Volga Samara
5 196 2024-06-09 42/52 43% 3.05 RR Agari Summer Tournament 2024 Moscow
6 991 2024-05-12 🥈 2/108 43% 4.60 RR X Russian Championship Perm
7 843 2024-03-10 9/52 29% 3.05 RR Agari Spring Tournament 2024 Moscow
8 692 2023-09-03 34/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg