Elkin Denis
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Jan. 7, 2026 (latest changes Jan. 7, 2026).
100 place (427.34).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (391.30 * 2.10 * 0.29 + 12.66 * 3.65 * 0.57 + 452.63 * 3.85 * 0.57 + 22.47 * 3.75 * 0.71 + 220.34 * 3.25 * 1 + 800 * 1.90 * 1 + 471.43 * 3.50 * 1 + 358.21 * 4.10 * 1 + 701.30 * 3.45 * 1) / (2.10 * 0.29 + 3.65 * 0.57 + 3.85 * 0.57 + 3.75 * 0.71 + 3.25 * 1 + 1.90 * 1 + 3.50 * 1 + 4.10 * 1 + 3.45 * 1) = 382.5662201737537
p2 = (701.30 * 3.45 * 1 + 471.43 * 3.50 * 1 + 800 * 1.90 * 1 + 358.21 * 4.10 * 1) / max_coefficients = 472.1163879598662
score = 382.5662201737537 * 0.5 + 472.1163879598662 * 0.5 = 427.3413040668099
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-01-04 | 101 -> 100 | 427.34 | |
| 2026-01-03 | 100 -> 101 | 427.34 | |
| 2026-01-01 | 102 -> 100 | 428.13 -> 427.34 |
SPB Riichi Open 2024: 71% -> 57% |
| 2025-12-13 | 105 -> 102 | 424.24 -> 428.13 |
Moscow Riichi 2024: 86% -> 71% |
| 2025-12-09 | 106 -> 105 | 424.24 | |
| 2025-12-07 | 102 -> 106 | 424.24 | |
| 2025-12-06 | 101 -> 102 | 424.24 | |
| 2025-12-04 | 103 -> 101 | 420.50 -> 424.24 |
Riichi over Volga: 71% -> 57% |
| 2025-11-30 | 102 -> 103 | 420.63 -> 420.50 |
Seihoku spring tournament 2024: 43% -> 29% |
| 2025-11-12 | 104 -> 102 | 420.63 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 701 |
|
24/78 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 2 | 358 |
|
44/68 | 100% | 4.10 | RR | 13 bloody tiles | Perm | |
| 3 | 471 |
|
38/71 | 100% | 3.50 | RR | Riichi over The Volga 2025 | Samara | |
| 4 | 800 |
|
8/36 | 100% | 1.90 | RR | Seihoku spring tournament 2025 | Saint Petersburg | |
| 5 | 220 |
|
47/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 6 | 22 |
|
88/90 | 71% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 7 | 453 |
|
53/96 | 57% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 8 | 13 |
|
79/80 | 57% | 3.65 | RR | Riichi over Volga | Samara | |
| 9 | 391 |
|
29/47 | 29% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 10 | 449 |
|
60/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 11 | 304 |
|
17/24 | 0% | 1.40 | CRR | Fire cup 2023 | Saint Petersburg |