Oparin Konstantin

From Moscow, Russia

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Internal rating (RR)

Rating date June 15, 2026 (latest changes June 14, 2026).

97 place (432.73).

max_coefficients = (4.71 * 1 + 4.10 * 1 + 3.90 * 1 + 3.45 * 1) = 16.16

p1 = (772.15 * 3.65 * 0.14 + 894.74 * 3.85 * 0.29 + 269.66 * 3.75 * 0.29 + 322.58 * 3.10 * 0.57 + 160 * 3.10 * 1 + 703.70 * 2.45 * 1 + 587.41 * 4.71 * 1) / (3.65 * 0.14 + 3.85 * 0.29 + 3.75 * 0.29 + 3.10 * 0.57 + 3.10 * 1 + 2.45 * 1 + 4.71 * 1) = 491.29785601910316

p2 = (587.41 * 4.71 * 1 + 703.70 * 2.45 * 1 + 894.74 * 3.85 * 0.29 + 322.58 * 3.10 * 0.57) / max_coefficients = 374.15470297029697

score = 491.29785601910316 * 0.5 + 374.15470297029697 * 0.5 = 432.72627949470007

Rating changes

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all results
Date Place Points Reason
2026-06-14 112 -> 97 350.17 -> 432.73

XII Russian Championship: 0% -> 100%
2026-06-13 114 -> 112 345.69 -> 350.17

Moscow Riichi 2024: 43% -> 29%
2026-06-09 122 -> 114 340.91 -> 345.69

Agari Summer Tournament 2024: 14% -> 0%
2026-06-04 111 -> 122 359.12 -> 340.91

Riichi over Volga: 29% -> 14%
2026-05-26 113 -> 111 359.12
2026-05-17 152 -> 113 282.54 -> 359.12

Hatiko under the sakura: 0% -> 100%
2026-05-14 153 -> 152 282.54
2026-05-12 137 -> 153 308.67 -> 282.54

X Russian Championship: 14% -> 0%
2026-05-07 136 -> 137 311.48 -> 308.67

Moscow Open Riichi Marathon: 71% -> 57%
2026-05-03 134 -> 136 310.77 -> 311.48

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 587 2026-06-14 60/144 100% 4.71 RR XII Russian Championship Samara
2 704 2026-05-17 9/28 100% 2.45 RR Hatiko under the sakura Korolyov
3 160 2026-04-05 43/51 100% 3.10 RR Moscow Riichi 2026 Moscow
4 323 2025-01-07 22/32 57% 3.10 RR Moscow Open Riichi Marathon Moscow
5 270 2024-10-13 66/90 29% 3.75 RR Moscow Riichi 2024 Moscow
6 895 2024-09-01 11/96 29% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
7 772 2024-08-04 19/80 14% 3.65 RR Riichi over Volga Samara
8 196 2024-06-09 42/52 0% 3.05 RR Agari Summer Tournament 2024 Moscow
9 991 2024-05-12 🥈 2/108 0% 4.60 RR X Russian Championship Perm
10 843 2024-03-10 9/52 0% 3.05 RR Agari Spring Tournament 2024 Moscow
11 692 2023-09-03 34/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg