Kopylov Dmitry
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Sept. 3, 2023 (latest changes Sept. 3, 2023).
153 place (177.35).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.71) = 14.842915
p1 = (135.14 * 4.05 * 0.71 + 384.62 * 1.80 * 0.86 + 120 * 4.20 * 1 + 0 * 1.80 * 1 + 434.78 * 1.40 * 1 + 205.61 * 4 * 1) / (4.05 * 0.71 + 1.80 * 0.86 + 4.20 * 1 + 1.80 * 1 + 1.40 * 1 + 4 * 1) = 184.35818573166506
p2 = (205.61 * 4 * 1 + 434.78 * 1.40 * 1 + 384.62 * 1.80 * 0.86 + 120 * 4.20 * 1) / max_coefficients = 170.35130902521507
score = 184.35818573166506 * 0.5 + 170.35130902521507 * 0.5 = 177.35474737844007
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-09-03 | 144 -> 153 | 165.44 -> 177.35 |
SPB Riichi Open 2023: 0% -> 100% |
| 2023-08-27 | 135 -> 144 | 171.27 -> 165.44 |
Sun tournament: 100% -> 86% |
| 2023-08-26 | 134 -> 135 | 171.27 | |
| 2023-08-19 | 135 -> 134 | 171.27 | |
| 2023-08-12 | 134 -> 135 | 169.69 -> 171.27 |
Moscow Riichi 2022: 86% -> 71% |
| 2023-07-06 | 136 -> 134 | 169.69 | |
| 2023-07-05 | 137 -> 136 | 169.69 | |
| 2023-07-03 | 138 -> 137 | 169.69 | |
| 2023-06-12 | 139 -> 138 | 168.24 -> 169.69 |
Moscow Riichi 2022: 100% -> 86% |
| 2023-06-11 | 125 -> 139 | 175.57 -> 168.24 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 206 |
|
86/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 2 | 435 |
|
14/24 | 100% | 1.40 | CRR | Fire cup 2023 |
| 3 | 0 |
|
32/32 | 100% | 1.80 | CRR | Earth cup |
| 4 | 120 |
|
67/76 | 100% | 4.20 | RR | IX Russian Riichi Championship |
| 5 | 385 |
|
25/40 | 86% | 1.80 | CRR | Sun tournament |
| 6 | 135 |
|
97/112 | 71% | 4.05 | RR | Moscow Riichi 2022 |