Chekan Vikmar
From Saint Petersburg, Russia
EMA: 15990345
Internal rating (RR)
Rating date Nov. 8, 2026 (latest changes Nov. 7, 2026).
260 place (0.00).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.40 * 1 + 3.40 * 1 + 3.40 * 1) = 14.91
p1 = (0 * 3.45 * 0.71 + 0 * 3.40 * 1 + 0 + 0 + 0) / (3.45 * 0.71 + 3.40 * 1 + 1 + 1 + 1) = 0.0
p2 = (0 * 3.45 * 0.71 + 0 * 3.40 * 1) / max_coefficients = 0.0
score = 0.0 * 0.5 + 0.0 * 0.5 = 0.0
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-10-31 | 256 -> 260 | 0.00 |
SPB Riichi Open 2025: 86% -> 71% |
| 2026-10-13 | 266 -> 256 | 0.00 | |
| 2026-09-06 | 268 -> 266 | 1.27 -> 0.00 |
Sunset Wolf Cup 2026: 0% -> 100% |
| 2026-08-31 | 268 | 1.20 -> 1.27 |
SPB Riichi Open 2025: 100% -> 86% |
| 2026-08-16 | 262 -> 268 | 1.20 | |
| 2026-08-04 | 268 -> 262 | 1.20 | |
| 2026-08-02 | 265 -> 268 | 1.20 | |
| 2026-07-25 | 261 -> 265 | 1.20 | |
| 2026-07-18 | 254 -> 261 | 1.20 | |
| 2026-07-14 | 256 -> 254 | 1.20 |