Tumanin Andrei
From Samara, Russia
Common russian riichi rating (CRR)
Rating date May 23, 2026 (latest changes May 23, 2026).
7 place (768.29).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85
p1 = (574.47 * 2.80 * 0.14 + 670.89 * 3.65 * 0.29 + 505.26 * 3.85 * 0.29 + 752.81 * 3.75 * 0.43 + 304.35 * 2.80 * 0.57 + 1000 * 4.10 * 1 + 906.98 * 3 * 1 + 800 * 1.50 * 1 + 612.90 * 3 * 1 + 940 * 3.10 * 1 + 571.43 * 2.90 * 1) / (2.80 * 0.14 + 3.65 * 0.29 + 3.85 * 0.29 + 3.75 * 0.43 + 2.80 * 0.57 + 4.10 * 1 + 3 * 1 + 1.50 * 1 + 3 * 1 + 3.10 * 1 + 2.90 * 1) = 754.2976371774953
p2 = (1000 * 4.10 * 1 + 940 * 3.10 * 1 + 906.98 * 3 * 1 + 545.45 * 3.45 * 1) / max_coefficients = 782.2727272727273
score = 754.2976371774953 * 0.5 + 782.2727272727273 * 0.5 = 768.2851822251113
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-05-17 | 8 -> 7 | 768.29 | |
| 2026-05-14 | 8 | 766.87 -> 768.29 |
Guardian of the Winds: 29% -> 14% |
| 2026-05-12 | 8 | 766.94 -> 766.87 |
X Russian Championship: 14% -> 0% |
| 2026-05-03 | 5 -> 8 | 776.37 -> 766.94 |
Sturgeon in tempai: 0% -> 100% |
| 2026-05-01 | 5 | 772.99 -> 776.37 |
SPB Riichi Open 2024: 43% -> 29% |
| 2026-04-13 | 5 | 772.80 -> 772.99 |
Moscow Riichi 2024: 57% -> 43% |
| 2026-04-05 | 10 -> 5 | 723.76 -> 772.80 |
Moscow Riichi 2026: 0% -> 100% |
| 2026-04-04 | 10 | 722.90 -> 723.76 |
Riichi over Volga: 43% -> 29% |
| 2026-04-02 | 12 -> 10 | 722.90 | |
| 2026-03-14 | 12 | 721.41 -> 722.90 |
Guardian of the Winds: 43% -> 29% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 571 |
|
19/43 | 100% | 2.90 | RR | Sturgeon in tempai | Saratov | |
| 2 | 940 |
|
4/51 | 100% | 3.10 | RR | Moscow Riichi 2026 | Moscow | |
| 3 | 613 |
|
13/32 | 100% | 3.00 | RR | Final Cup 2025 | Moscow | |
| 4 | 800 |
|
5/21 | 100% | 1.50 | CRR | San-Biki Cup | Saratov | |
| 5 | 545 |
|
36/78 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 6 | 907 |
|
5/44 | 100% | 3.00 | RR | Two roosters and Chuckles | Kirov | |
| 7 | 1000 |
|
🥇 | 1/68 | 100% | 4.10 | RR | 13 bloody tiles | Perm |
| 8 | 304 |
|
17/24 | 57% | 2.80 | CRR | Riichi never changing | Moscow | |
| 9 | 753 |
|
23/90 | 43% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 10 | 505 |
|
48/96 | 29% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 11 | 671 |
|
27/80 | 29% | 3.65 | RR | Riichi over Volga | Samara | |
| 12 | 574 |
|
21/48 | 14% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 13 | 757 |
|
27/108 | 0% | 4.60 | RR | X Russian Championship | Perm | |
| 14 | 841 |
|
18/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 15 | 816 |
|
17/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 16 | 467 |
|
41/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm |