Tumanina Valentina
From Samara, Russia
Common russian riichi rating (CRR)
Rating date Oct. 9, 2025 (latest changes Oct. 9, 2025).
18 place (706.96).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (685.71 * 3.50 * 1 + 447.76 * 4.10 * 1 + 978.72 * 2.80 * 0.71 + 784.81 * 3.65 * 0.71 + 294.74 * 3.85 * 0.86 + 792.21 * 3.45 * 1 + 691.59 * 4.60 * 0.57 + 857.14 * 2.60 * 1 + 887.64 * 3.75 * 1) / (3.50 * 1 + 4.10 * 1 + 2.80 * 0.71 + 3.65 * 0.71 + 3.85 * 0.86 + 3.45 * 1 + 4.60 * 0.57 + 2.60 * 1 + 3.75 * 1) = 691.5993300283402
p2 = (887.64 * 3.75 * 1 + 792.21 * 3.45 * 1 + 685.71 * 3.50 * 1 + 857.14 * 2.60 * 1) / max_coefficients = 722.3202702702703
score = 691.5993300283402 * 0.5 + 722.3202702702703 * 0.5 = 706.9598001493052
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-10-04 | 16 -> 18 | 715.47 -> 706.96 |
Riichi over Volga: 86% -> 71% |
| 2025-09-14 | 16 | 717.45 -> 715.47 |
Guardian of the Winds: 86% -> 71% |
| 2025-09-12 | 17 -> 16 | 717.38 -> 717.45 |
X Russian Championship: 71% -> 57% |
| 2025-09-03 | 18 -> 17 | 716.36 -> 717.38 |
SPB Riichi Open 2023: 14% -> 0% |
| 2025-09-01 | 22 -> 18 | 703.05 -> 716.36 |
SPB Riichi Open 2024: 100% -> 86% |
| 2025-08-31 | 24 -> 22 | 683.79 -> 703.05 |
SPB Riichi Open 2025: 0% -> 100% |
| 2025-08-04 | 22 -> 24 | 694.78 -> 683.79 |
Riichi over Volga: 100% -> 86% |
| 2025-08-03 | 21 -> 22 | 694.78 | |
| 2025-07-14 | 15 -> 21 | 709.68 -> 694.78 |
Guardian of the Winds: 100% -> 86% |
| 2025-07-12 | 18 -> 15 | 713.34 -> 709.68 |
X Russian Championship: 86% -> 71% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 792 |
|
17/78 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 2 | 448 |
|
38/68 | 100% | 4.10 | RR | 13 bloody tiles | Perm | |
| 3 | 686 |
|
23/71 | 100% | 3.50 | RR | Riichi over The Volga 2025 | Samara | |
| 4 | 857 |
|
7/43 | 100% | 2.60 | RR | Riichi On Ice | Samara | |
| 5 | 0 |
|
24/24 | 100% | 2.80 | CRR | Riichi never changing | Moscow | |
| 6 | 888 |
|
11/90 | 100% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 7 | 295 |
|
68/96 | 86% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 8 | 785 |
|
18/80 | 71% | 3.65 | RR | Riichi over Volga | Samara | |
| 9 | 979 |
|
🥈 | 2/48 | 71% | 2.80 | RR | Guardian of the Winds | Yekaterinburg |
| 10 | 692 |
|
34/108 | 57% | 4.60 | RR | X Russian Championship | Perm | |
| 11 | 589 |
|
45/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 12 | 575 |
|
38/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 13 | 400 |
|
46/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm |