Piven Maksim
From Simferopol, Russia
Common russian riichi rating (CRR)
Rating date April 20, 2026 (latest changes April 19, 2026).
180 place (309.03).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (181.82 * 0.90 * 0.86 + 0 * 2 * 1 + 304.35 * 1.20 * 1 + 782.61 * 1.20 * 1 + 157.89 * 1.30 * 1 + 842.11 * 2.10 * 1) / (0.90 * 0.86 + 2 * 1 + 1.20 * 1 + 1.20 * 1 + 1.30 * 1 + 2.10 * 1) = 398.80112793840897
p2 = (842.11 * 2.10 * 1 + 782.61 * 1.20 * 1 + 304.35 * 1.20 * 1 + 157.89 * 1.30 * 1) / max_coefficients = 219.26622073578602
score = 398.80112793840897 * 0.5 + 219.26622073578602 * 0.5 = 309.0336743370975
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-04-19 | 255 -> 180 | 182.65 -> 309.03 |
The Southern Dragon Cup 2026: 0% -> 100% |
| 2026-04-13 | 257 -> 255 | 182.65 | |
| 2026-04-11 | 256 -> 257 | 182.65 | |
| 2026-04-05 | 251 -> 256 | 182.65 | |
| 2026-03-29 | 251 | 182.72 -> 182.65 |
The Southern Coon Mini Cup: 100% -> 86% |
| 2026-03-21 | 250 -> 251 | 165.60 -> 182.72 |
The Southern Coon Mini Cup 2026: 0% -> 100% |
| 2026-03-14 | 245 -> 250 | 165.60 | |
| 2026-03-12 | 246 -> 245 | 165.60 | |
| 2026-03-10 | 249 -> 246 | 165.60 | |
| 2026-03-07 | 244 -> 249 | 165.60 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 842 |
|
4/20 | 100% | 2.10 | RR | The Southern Dragon Cup 2026 | Simferopol | |
| 2 | 158 |
|
17/20 | 100% | 1.30 | CRR | The Southern Coon Mini Cup 2026 | Simferopol | |
| 3 | 783 |
|
6/24 | 100% | 1.20 | CRR | Riichi on fire | Simferopol | |
| 4 | 304 |
|
17/24 | 100% | 1.20 | CRR | Pands in discards | Simferopol | |
| 5 | 0 |
|
16/16 | 100% | 2.00 | RR | South Dragon Cup II | Simferopol | |
| 6 | 182 |
|
10/12 | 86% | 0.90 | CRR | The Southern Coon Mini Cup | Simferopol |