Grashhenko Artem
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date July 1, 2025 (latest changes June 27, 2025).
220 place (190.19).
how we calculated rating score
max_coefficients = (4.10 * 1 + 4.60 * 0.86 + 3.85 * 1 + 3.75 * 1) = 15.64266
p1 = (454.55 * 2.10 * 0.29 + 565.22 * 2.10 * 0.71 + 254.90 * 3.05 * 0.86 + 0 + 0) / (2.10 * 0.29 + 2.10 * 0.71 + 3.05 * 0.86 + 1 + 1) = 266.13922377425007
p2 = (565.22 * 2.10 * 0.71 + 254.90 * 3.05 * 0.86 + 454.55 * 2.10 * 0.29) / max_coefficients = 114.2324898706486
score = 266.13922377425007 * 0.5 + 114.2324898706486 * 0.5 = 190.18585682244935
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-06-27 | 221 -> 220 | 190.19 | |
| 2025-06-25 | 222 -> 221 | 190.19 | |
| 2025-06-22 | 216 -> 222 | 198.58 -> 190.19 |
Mushroom League: 43% -> 29% |
| 2025-06-15 | 207 -> 216 | 200.40 -> 198.58 | |
| 2025-06-14 | 201 -> 207 | 200.40 | |
| 2025-06-11 | 208 -> 201 | 200.40 | |
| 2025-06-09 | 207 -> 208 | 203.49 -> 200.40 |
Agari Summer Tournament 2024: 100% -> 86% |
| 2025-05-30 | 202 -> 207 | 214.72 -> 203.49 |
Seihoku spring tournament 2024: 86% -> 71% |
| 2025-05-25 | 203 -> 202 | 214.72 | |
| 2025-05-17 | 201 -> 203 | 214.72 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
|---|---|---|---|---|---|---|---|---|
| 1 | 255 |
|
39/52 | 86% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow |
| 2 | 565 |
|
21/47 | 71% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg |
| 3 | 455 |
|
13/23 | 29% | 2.10 | CRR | Mushroom League | Moscow |