Melnikov Ilya
From Samara, Russia
Common russian riichi rating (CRR)
Rating date May 3, 2025 (latest changes May 3, 2025).
48 place (586.92).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (655.17 * 3.75 * 0.14 + 915.89 * 4 * 0.29 + 523.36 * 4.60 * 1 + 759.49 * 3.65 * 1 + 119.05 * 2.60 * 1 + 800 * 3.50 * 1) / (3.75 * 0.14 + 4 * 0.29 + 4.60 * 1 + 3.65 * 1 + 2.60 * 1 + 3.50 * 1) = 604.3493925729981
p2 = (800 * 3.50 * 1 + 759.49 * 3.65 * 1 + 523.36 * 4.60 * 1 + 915.89 * 4 * 0.29) / max_coefficients = 569.4832807570978
score = 604.3493925729981 * 0.5 + 569.4832807570978 * 0.5 = 586.916336665048
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-05-03 | 67 -> 48 | 506.84 -> 586.92 |
SPB Riichi Open 2023: 43% -> 29% Riichi over The Volga 2025: 0% -> 100% |
| 2025-04-22 | 68 -> 67 | 506.84 | |
| 2025-04-13 | 67 -> 68 | 506.84 | |
| 2025-04-11 | 64 -> 67 | 519.66 -> 506.84 |
Money can not buy tenpai: 29% -> 14% |
| 2025-03-30 | 65 -> 64 | 519.66 | |
| 2025-03-10 | 66 -> 65 | 519.66 | |
| 2025-03-05 | 67 -> 66 | 519.66 | |
| 2025-03-03 | 62 -> 67 | 543.14 -> 519.66 |
SPB Riichi Open 2023: 57% -> 43% |
| 2025-03-02 | 59 -> 62 | 543.14 | |
| 2025-02-16 | 51 -> 59 | 543.14 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
|---|---|---|---|---|---|---|---|---|
| 1 | 800 |
|
15/71 | 100% | 3.50 | RR | Riichi over The Volga 2025 | Samara |
| 2 | 119 |
|
38/43 | 100% | 2.60 | RR | Riichi On Ice | Samara |
| 3 | 759 |
|
20/80 | 100% | 3.65 | RR | Riichi over Volga | Samara |
| 4 | 523 |
|
52/108 | 100% | 4.60 | RR | X Russian Championship | Perm |
| 5 | 916 |
|
10/108 | 29% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg |
| 6 | 655 |
|
31/88 | 14% | 3.75 | RR | Money can not buy tenpai | Perm |
| 7 | 171 |
|
93/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow |
| 8 | 263 |
|
15/20 | 0% | 1.30 | CRR | Mahjong tournament at the Intellectual Games Festival 2019 | Samara |