Oparin Konstantin

From Moscow, Russia

Player page

Internal rating (RR)

Rating date Sept. 4, 2026 (latest changes Sept. 3, 2026).

111 place (404.99).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41

p1 = (269.66 * 3.75 * 0.14 + 322.58 * 3.10 * 0.43 + 160 * 3.10 * 1 + 703.70 * 2.45 * 1 + 587.41 * 4.71 * 1) / (3.75 * 0.14 + 3.10 * 0.43 + 3.10 * 1 + 2.45 * 1 + 4.71 * 1) = 458.5652150783515

p2 = (587.41 * 4.71 * 1 + 703.70 * 2.45 * 1 + 160 * 3.10 * 1 + 322.58 * 3.10 * 0.43) / max_coefficients = 351.4198572355613

score = 458.5652150783515 * 0.5 + 351.4198572355613 * 0.5 = 404.9925361569564

Rating changes

Show

all results
Date Place Points Reason
2026-09-01 104 -> 111 416.52 -> 404.99

SPB Riichi Open 2024: 14% -> 0%
2026-08-31 105 -> 104 415.95 -> 416.52
2026-08-16 101 -> 105 415.95
2026-08-15 101 414.65 -> 415.95
2026-08-13 103 -> 101 410.44 -> 414.65

Moscow Riichi 2024: 29% -> 14%
2026-08-08 104 -> 103 410.44
2026-08-04 104 416.19 -> 410.44

Riichi over Volga: 14% -> 0%
2026-08-03 103 -> 104 416.19
2026-08-02 105 -> 103 416.19
2026-07-26 106 -> 105 416.19

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 43% 3.10 RR Moscow Open Riichi Marathon Moscow
5 270 2024-10-13 66/90 14% 3.75 RR Moscow Riichi 2024 Moscow
6 895 2024-09-01 11/96 0% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
7 772 2024-08-04 19/80 0% 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