Tumanin Andrei
From Samara, Russia
Internal rating (RR)
Rating date May 3, 2025 (latest changes May 3, 2025).
23 place (674.63).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (816.09 * 3.75 * 0.14 + 841.12 * 4 * 0.29 + 757.01 * 4.60 * 1 + 574.47 * 2.80 * 1 + 670.89 * 3.65 * 1 + 505.26 * 3.85 * 1 + 752.81 * 3.75 * 1) / (3.75 * 0.14 + 4 * 0.29 + 4.60 * 1 + 2.80 * 1 + 3.65 * 1 + 3.85 * 1 + 3.75 * 1) = 674.2357777867963
p2 = (757.01 * 4.60 * 1 + 752.81 * 3.75 * 1 + 670.89 * 3.65 * 1 + 505.26 * 3.85 * 1) / max_coefficients = 675.0321766561515
score = 674.2357777867963 * 0.5 + 675.0321766561515 * 0.5 = 674.633977221474
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-05-03 | 20 -> 23 | 676.92 -> 674.63 |
SPB Riichi Open 2023: 43% -> 29% |
| 2025-04-26 | 18 -> 20 | 676.92 | |
| 2025-04-11 | 18 | 678.63 -> 676.92 |
Money can not buy tenpai: 29% -> 14% |
| 2025-03-10 | 19 -> 18 | 678.63 | |
| 2025-03-03 | 17 -> 19 | 680.69 -> 678.63 |
SPB Riichi Open 2023: 57% -> 43% |
| 2025-03-02 | 18 -> 17 | 680.69 | |
| 2025-02-11 | 16 -> 18 | 682.24 -> 680.69 |
Money can not buy tenpai: 43% -> 29% |
| 2025-02-02 | 13 -> 16 | 682.24 | |
| 2025-01-26 | 14 -> 13 | 682.24 | |
| 2025-01-07 | 15 -> 14 | 682.24 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
|---|---|---|---|---|---|---|---|---|
| 1 | 753 |
|
23/90 | 100% | 3.75 | RR | Moscow Riichi 2024 | Moscow |
| 2 | 505 |
|
48/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg |
| 3 | 671 |
|
27/80 | 100% | 3.65 | RR | Riichi over Volga | Samara |
| 4 | 574 |
|
21/48 | 100% | 2.80 | RR | Guardian of the Winds | Yekaterinburg |
| 5 | 757 |
|
27/108 | 100% | 4.60 | RR | X Russian Championship | Perm |
| 6 | 841 |
|
18/108 | 29% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg |
| 7 | 816 |
|
17/88 | 14% | 3.75 | RR | Money can not buy tenpai | Perm |
| 8 | 467 |
|
41/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm |