Tkachenko Nikita
From Moscow, Russia
EMA: 15990049
Internal rating (RR)
Rating date Jan. 22, 2026 (latest changes Jan. 14, 2026).
37 place (604.50).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (988.76 * 3.75 * 0.71 + 612.90 * 3.10 * 0.86 + 477.61 * 4.10 * 1 + 526.32 * 3.90 * 1 + 666.67 * 3 * 1) / (3.75 * 0.71 + 3.10 * 0.86 + 4.10 * 1 + 3.90 * 1 + 3 * 1) = 629.7802319897575
p2 = (988.76 * 3.75 * 0.71 + 526.32 * 3.90 * 1 + 666.67 * 3 * 1 + 477.61 * 4.10 * 1) / max_coefficients = 579.2220735785953
score = 629.7802319897575 * 0.5 + 579.2220735785953 * 0.5 = 604.5011527841764
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-01-07 | 40 -> 37 | 575.85 -> 604.50 |
Moscow Open Riichi Marathon: 100% -> 86% Moscow Open Riichi Marathon 2026: 0% -> 100% |
| 2025-12-13 | 39 -> 40 | 600.72 -> 575.85 |
Moscow Riichi 2024: 86% -> 71% |
| 2025-12-09 | 40 -> 39 | 600.72 | |
| 2025-11-14 | 41 -> 40 | 600.72 | |
| 2025-11-12 | 43 -> 41 | 600.72 | |
| 2025-11-04 | 58 -> 43 | 529.42 -> 600.72 |
XI Russian Championship: 0% -> 100% |
| 2025-11-01 | 59 -> 58 | 528.56 -> 529.42 | |
| 2025-10-13 | 56 -> 59 | 547.74 -> 528.56 |
Moscow Riichi 2024: 100% -> 86% |
| 2025-09-12 | 57 -> 56 | 547.74 | |
| 2025-09-03 | 58 -> 57 | 547.74 |