Oparin Konstantin

From Moscow, Russia

Player page

Internal rating (RR)

Rating date Oct. 31, 2025 (latest changes Oct. 13, 2025).

41 place (606.07).

max_coefficients = (4.10 * 1 + 3.50 * 1 + 3.45 * 1 + 3.85 * 0.86) = 14.349835

p1 = (843.14 * 3.05 * 0.43 + 990.65 * 4.60 * 0.57 + 196.08 * 3.05 * 0.57 + 772.15 * 3.65 * 0.71 + 894.74 * 3.85 * 0.86 + 269.66 * 3.75 * 0.86 + 322.58 * 3.10 * 1) / (3.05 * 0.43 + 4.60 * 0.57 + 3.05 * 0.57 + 3.65 * 0.71 + 3.85 * 0.86 + 3.75 * 0.86 + 3.10 * 1) = 607.8422444753637

p2 = (894.74 * 3.85 * 0.86 + 990.65 * 4.60 * 0.57 + 772.15 * 3.65 * 0.71 + 843.14 * 3.05 * 0.43) / max_coefficients = 604.3052062967971

score = 607.8422444753637 * 0.5 + 604.3052062967971 * 0.5 = 606.0737253860805

Rating changes

Show

all results
Date Place Points Reason
2025-10-13 45 -> 41 591.97 -> 606.07

Moscow Riichi 2024: 100% -> 86%
2025-10-09 47 -> 45 587.33 -> 591.97

Agari Summer Tournament 2024: 71% -> 57%
2025-10-04 44 -> 47 603.39 -> 587.33

Riichi over Volga: 86% -> 71%
2025-09-12 38 -> 44 631.90 -> 603.39

X Russian Championship: 71% -> 57%
2025-09-10 37 -> 38 646.82 -> 631.90

Agari Spring Tournament 2024: 57% -> 43%
2025-09-03 36 -> 37 647.90 -> 646.82

SPB Riichi Open 2023: 14% -> 0%
2025-09-01 32 -> 36 658.70 -> 647.90

SPB Riichi Open 2024: 100% -> 86%
2025-08-31 30 -> 32 658.70
2025-08-09 33 -> 30 654.50 -> 658.70

Agari Summer Tournament 2024: 86% -> 71%
2025-08-04 31 -> 33 666.06 -> 654.50

Riichi over Volga: 100% -> 86%

Tournaments

# Base rank Date Place Power Coefficient Type 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 86% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
4 772 2024-08-04 19/80 71% 3.65 RR Riichi over Volga Samara
5 196 2024-06-09 42/52 57% 3.05 RR Agari Summer Tournament 2024 Moscow
6 991 2024-05-12 🥈 2/108 57% 4.60 RR X Russian Championship Perm
7 843 2024-03-10 9/52 43% 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