Oparin Konstantin

From Moscow, Russia

Player page

Common russian riichi rating (CRR)

Rating date Feb. 8, 2026 (latest changes Feb. 8, 2026).

92 place (453.23).

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

p1 = (843.14 * 3.05 * 0.14 + 990.65 * 4.60 * 0.29 + 196.08 * 3.05 * 0.43 + 772.15 * 3.65 * 0.43 + 894.74 * 3.85 * 0.57 + 269.66 * 3.75 * 0.71 + 322.58 * 3.10 * 0.86) / (3.05 * 0.14 + 4.60 * 0.29 + 3.05 * 0.43 + 3.65 * 0.43 + 3.85 * 0.57 + 3.75 * 0.71 + 3.10 * 0.86) = 549.5866239046624

p2 = (894.74 * 3.85 * 0.57 + 990.65 * 4.60 * 0.29 + 772.15 * 3.65 * 0.43 + 322.58 * 3.10 * 0.86) / max_coefficients = 356.8769230769231

score = 549.5866239046624 * 0.5 + 356.8769230769231 * 0.5 = 453.23177349079276

Rating changes

Show

all results
Date Place Points Reason
2026-02-08 90 -> 92 453.23
2026-02-04 89 -> 90 471.27 -> 453.23

Riichi over Volga: 57% -> 43%
2026-02-02 90 -> 89 471.27
2026-02-01 89 -> 90 471.27
2026-01-25 84 -> 89 471.27
2026-01-12 73 -> 84 503.69 -> 471.27

X Russian Championship: 43% -> 29%
2026-01-10 73 507.85 -> 503.69

Agari Spring Tournament 2024: 29% -> 14%
2026-01-07 73 508.49 -> 507.85

Moscow Open Riichi Marathon: 100% -> 86%
2026-01-01 64 -> 73 530.82 -> 508.49

SPB Riichi Open 2024: 71% -> 57%
2025-12-13 70 -> 64 525.18 -> 530.82

Moscow Riichi 2024: 86% -> 71%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 323 2025-01-07 22/32 86% 3.10 RR Moscow Open Riichi Marathon Moscow
2 270 2024-10-13 66/90 71% 3.75 RR Moscow Riichi 2024 Moscow
3 895 2024-09-01 11/96 57% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
4 772 2024-08-04 19/80 43% 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 29% 4.60 RR X Russian Championship Perm
7 843 2024-03-10 9/52 14% 3.05 RR Agari Spring Tournament 2024 Moscow
8 718 2023-11-26 12/40 0% 2.90 CRR Autumn Agari tournament Moscow
9 591 2023-10-22 10/23 0% 2.10 CRR Mushroom League Moscow
10 692 2023-09-03 34/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg