Demurchev Mikhail
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Sept. 6, 2024 (latest changes Sept. 6, 2024).
51 place (537.95).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.65 * 1 + 4 * 0.86) = 15.5284
p1 = (470.59 * 3.05 * 1 + 261.68 * 4.60 * 1 + 980.39 * 3.05 * 1 + 278.48 * 3.65 * 1 + 757.89 * 3.85 * 1) / (3.05 * 1 + 4.60 * 1 + 3.05 * 1 + 3.65 * 1 + 3.85 * 1) = 525.4714285714285
p2 = (980.39 * 3.05 * 1 + 757.89 * 3.85 * 1 + 470.59 * 3.05 * 1 + 261.68 * 4.60 * 1) / max_coefficients = 550.4185878776951
score = 525.4714285714285 * 0.5 + 550.4185878776951 * 0.5 = 537.9450082245619
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-09-03 | 56 -> 51 | 528.17 -> 537.95 | |
| 2024-09-01 | 74 -> 56 | 433.65 -> 528.17 |
SPB Riichi Open 2024: 0% -> 100% |
| 2024-08-25 | 73 -> 74 | 433.65 | |
| 2024-08-11 | 78 -> 73 | 431.35 -> 433.65 | |
| 2024-08-04 | 81 -> 78 | 410.98 -> 431.35 |
Riichi over Volga: 0% -> 100% |
| 2024-07-14 | 77 -> 81 | 410.98 | |
| 2024-07-06 | 79 -> 77 | 410.98 | |
| 2024-06-27 | 80 -> 79 | 410.98 | |
| 2024-06-22 | 81 -> 80 | 410.98 | |
| 2024-06-11 | 83 -> 81 | 404.39 -> 410.98 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 758 |
|
24/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 |
| 2 | 278 |
|
58/80 | 100% | 3.65 | RR | Riichi over Volga |
| 3 | 980 |
|
2/52 | 100% | 3.05 | RR | Agari Summer Tournament 2024 |
| 4 | 262 |
|
80/108 | 100% | 4.60 | RR | X Russian Championship |
| 5 | 471 |
|
28/52 | 100% | 3.05 | RR | Agari Spring Tournament 2024 |