Elkin Denis
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date April 22, 2025 (latest changes April 22, 2025).
182 place (236.80).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (448.60 * 4 * 0.43 + 391.30 * 2.10 * 0.86 + 12.66 * 3.65 * 1 + 452.63 * 3.85 * 1 + 22.47 * 3.75 * 1 + 220.34 * 3.25 * 1) / (4 * 0.43 + 2.10 * 0.86 + 3.65 * 1 + 3.85 * 1 + 3.75 * 1 + 3.25 * 1) = 225.52015592048764
p2 = (452.63 * 3.85 * 1 + 448.60 * 4 * 0.43 + 220.34 * 3.25 * 1 + 391.30 * 2.10 * 0.86) / max_coefficients = 248.08328075709778
score = 225.52015592048764 * 0.5 + 248.08328075709778 * 0.5 = 236.8017183387927
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-04-22 | 183 -> 182 | 237.23 -> 236.80 |
Fire cup 2023: 14% -> 0% |
| 2025-04-13 | 180 -> 183 | 237.23 | |
| 2025-04-11 | 182 -> 180 | 237.23 | |
| 2025-03-30 | 182 | 242.28 -> 237.23 |
Seihoku spring tournament 2024: 100% -> 86% |
| 2025-03-29 | 180 -> 182 | 242.28 | |
| 2025-03-23 | 175 -> 180 | 242.28 | |
| 2025-03-03 | 170 -> 175 | 253.64 -> 242.28 |
SPB Riichi Open 2023: 57% -> 43% |
| 2025-03-02 | 167 -> 170 | 253.64 | |
| 2025-02-26 | 168 -> 167 | 253.64 | |
| 2025-02-25 | 171 -> 168 | 253.64 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
|---|---|---|---|---|---|---|---|---|
| 1 | 220 |
|
47/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg |
| 2 | 22 |
|
88/90 | 100% | 3.75 | RR | Moscow Riichi 2024 | Moscow |
| 3 | 453 |
|
53/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg |
| 4 | 13 |
|
79/80 | 100% | 3.65 | RR | Riichi over Volga | Samara |
| 5 | 391 |
|
29/47 | 86% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg |
| 6 | 449 |
|
60/108 | 43% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg |
| 7 | 304 |
|
17/24 | 0% | 1.40 | CRR | Fire cup 2023 | Saint Petersburg |