Demurchev Mikhail
From Moscow, Russia
Internal rating (RR)
Rating date May 20, 2026 (latest changes May 17, 2026).
152 place (286.37).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85
p1 = (980.39 * 3.05 * 0.14 + 278.48 * 3.65 * 0.29 + 757.89 * 3.85 * 0.29 + 224.72 * 3.75 * 0.43 + 333.33 * 3.05 * 0.71) / (3.05 * 0.14 + 3.65 * 0.29 + 3.85 * 0.29 + 3.75 * 0.43 + 3.05 * 0.71) = 414.60390983681265
p2 = (757.89 * 3.85 * 0.29 + 333.33 * 3.05 * 0.71 + 980.39 * 3.05 * 0.14 + 224.72 * 3.75 * 0.43) / max_coefficients = 158.13670033670033
score = 414.60390983681265 * 0.5 + 158.13670033670033 * 0.5 = 286.3703050867565
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-05-17 | 149 -> 152 | 286.37 | |
| 2026-05-12 | 162 -> 149 | 279.21 -> 286.37 |
X Russian Championship: 14% -> 0% |
| 2026-05-03 | 159 -> 162 | 278.68 -> 279.21 | |
| 2026-05-01 | 140 -> 159 | 305.62 -> 278.68 |
SPB Riichi Open 2024: 43% -> 29% |
| 2026-04-27 | 141 -> 140 | 305.62 | |
| 2026-04-26 | 142 -> 141 | 305.62 | |
| 2026-04-19 | 140 -> 142 | 305.62 | |
| 2026-04-13 | 139 -> 140 | 302.99 -> 305.62 |
Moscow Riichi 2024: 57% -> 43% |
| 2026-04-11 | 138 -> 139 | 302.99 | |
| 2026-04-09 | 128 -> 138 | 331.73 -> 302.99 |
Agari Summer Tournament 2024: 29% -> 14% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 333 |
|
35/52 | 71% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow | |
| 2 | 225 |
|
70/90 | 43% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 3 | 758 |
|
24/96 | 29% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 4 | 278 |
|
58/80 | 29% | 3.65 | RR | Riichi over Volga | Samara | |
| 5 | 980 |
|
🥈 | 2/52 | 14% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow |
| 6 | 262 |
|
80/108 | 0% | 4.60 | RR | X Russian Championship | Perm | |
| 7 | 471 |
|
28/52 | 0% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow |