Tumanin Andrei
From Samara, Russia
Common russian riichi rating (CRR)
Rating date Sept. 3, 2026 (latest changes Sept. 3, 2026).
21 place (705.26).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41
p1 = (752.81 * 3.75 * 0.14 + 304.35 * 2.80 * 0.29 + 1000 * 4.10 * 0.71 + 906.98 * 3 * 0.86 + 800 * 1.50 * 1 + 612.90 * 3 * 1 + 940 * 3.10 * 1 + 571.43 * 2.90 * 1 + 593.22 * 3.40 * 1) / (3.75 * 0.14 + 2.80 * 0.29 + 4.10 * 0.71 + 3 * 0.86 + 1.50 * 1 + 3 * 1 + 3.10 * 1 + 2.90 * 1 + 3.40 * 1) = 749.160689272858
p2 = (1000 * 4.10 * 0.71 + 940 * 3.10 * 1 + 906.98 * 3 * 0.86 + 593.22 * 3.40 * 1) / max_coefficients = 661.3685918234912
score = 749.160689272858 * 0.5 + 661.3685918234912 * 0.5 = 705.2646405481746
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-09-02 | 20 -> 21 | 705.26 | |
| 2026-09-01 | 21 -> 20 | 702.11 -> 705.26 |
SPB Riichi Open 2024: 14% -> 0% |
| 2026-08-31 | 23 -> 21 | 701.04 -> 702.11 |
SPB Riichi Open 2025: 100% -> 86% |
| 2026-08-16 | 18 -> 23 | 710.90 -> 701.04 |
Ufa Championship 2026: 0% -> 100% |
| 2026-08-15 | 14 -> 18 | 730.93 -> 710.90 |
13 bloody tiles: 86% -> 71% |
| 2026-08-13 | 14 | 730.57 -> 730.93 |
Moscow Riichi 2024: 29% -> 14% |
| 2026-08-04 | 14 | 729.14 -> 730.57 |
Riichi over Volga: 14% -> 0% |
| 2026-08-03 | 14 | 743.04 -> 729.14 |
Two roosters and Chuckles: 100% -> 86% |
| 2026-08-01 | 14 | 738.39 -> 743.04 |
Riichi never changing: 43% -> 29% |
| 2026-07-14 | 14 | 736.52 -> 738.39 |
Guardian of the Winds: 14% -> 0% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 593 |
|
25/60 | 100% | 3.40 | RR | Ufa Championship 2026 | Ufa | |
| 2 | 571 |
|
19/43 | 100% | 2.90 | RR | Sturgeon in tempai | Saratov | |
| 3 | 940 |
|
4/51 | 100% | 3.10 | RR | Moscow Riichi 2026 | Moscow | |
| 4 | 613 |
|
13/32 | 100% | 3.00 | RR | Final Cup 2025 | Moscow | |
| 5 | 800 |
|
5/21 | 100% | 1.50 | CRR | San-Biki Cup | Saratov | |
| 6 | 545 |
|
36/78 | 86% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 7 | 907 |
|
5/44 | 86% | 3.00 | RR | Two roosters and Chuckles | Kirov | |
| 8 | 1000 |
|
🥇 | 1/68 | 71% | 4.10 | RR | 13 bloody tiles | Perm |
| 9 | 304 |
|
17/24 | 29% | 2.80 | CRR | Riichi never changing | Moscow | |
| 10 | 753 |
|
23/90 | 14% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 11 | 505 |
|
48/96 | 0% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 12 | 671 |
|
27/80 | 0% | 3.65 | RR | Riichi over Volga | Samara | |
| 13 | 574 |
|
21/48 | 0% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 14 | 757 |
|
27/108 | 0% | 4.60 | RR | X Russian Championship | Perm | |
| 15 | 841 |
|
18/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 16 | 816 |
|
17/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 17 | 467 |
|
41/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm |