Dergunov Aleksey
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Oct. 11, 2024 (latest changes Oct. 11, 2024).
10 place (712.04).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.65 * 1 + 4 * 0.86) = 15.5284
p1 = (863.64 * 2.10 * 1 + 548.39 * 1.80 * 1 + 1000 * 1.50 * 1 + 176.47 * 3.05 * 1 + 252.87 * 3.75 * 0.57 + 769.23 * 2.90 * 1 + 960.78 * 3.05 * 1 + 260.87 * 2.10 * 1 + 747.66 * 4.60 * 1 + 744.68 * 2.80 * 1 + 797.47 * 3.65 * 1 + 673.68 * 3.85 * 1) / (2.10 * 1 + 1.80 * 1 + 1.50 * 1 + 3.05 * 1 + 3.75 * 0.57 + 2.90 * 1 + 3.05 * 1 + 2.10 * 1 + 4.60 * 1 + 2.80 * 1 + 3.65 * 1 + 3.85 * 1) = 659.4155219831409
p2 = (747.66 * 4.60 * 1 + 960.78 * 3.05 * 1 + 797.47 * 3.65 * 1 + 673.68 * 3.85 * 1) / max_coefficients = 764.6686071971355
score = 659.4155219831409 * 0.5 + 764.6686071971355 * 0.5 = 712.0420645901382
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-10-11 | 10 | 708.85 -> 712.04 |
Money can not buy tenpai: 71% -> 57% |
| 2024-09-03 | 14 -> 10 | 695.27 -> 708.85 |
SPB Riichi Open 2023: 100% -> 86% |
| 2024-09-01 | 10 -> 14 | 701.38 -> 695.27 |
SPB Riichi Open 2024: 0% -> 100% |
| 2024-08-11 | 12 -> 10 | 693.93 -> 701.38 |
Money can not buy tenpai: 86% -> 71% |
| 2024-08-04 | 19 -> 12 | 670.81 -> 693.93 |
Riichi over Volga: 0% -> 100% |
| 2024-07-14 | 19 | 654.66 -> 670.81 |
Guardian of the Winds: 0% -> 100% |
| 2024-06-11 | 21 -> 19 | 637.33 -> 654.66 |
Money can not buy tenpai: 100% -> 86% |
| 2024-06-09 | 16 -> 21 | 666.08 -> 637.33 |
Agari Summer Tournament 2024: 0% -> 100% |
| 2024-05-25 | 21 -> 16 | 620.26 -> 666.08 |
Duplicate riichi mahjong tournament 2024: 0% -> 100% |
| 2024-05-19 | 21 | 620.88 -> 620.26 |
"Green Dragon" in the Secret Chamber: 0% -> 100% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 674 |
|
32/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 2 | 797 |
|
17/80 | 100% | 3.65 | RR | Riichi over Volga | Samara | |
| 3 | 745 |
|
13/48 | 100% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 4 | 176 |
|
43/52 | 100% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow | |
| 5 | 1000 |
|
🥇 | 1/20 | 100% | 1.50 | CRR | Duplicate riichi mahjong tournament 2024 | Moscow |
| 6 | 548 |
|
15/32 | 100% | 1.80 | CRR | "Green Dragon" in the Secret Chamber | Korolyov | |
| 7 | 748 |
|
28/108 | 100% | 4.60 | RR | X Russian Championship | Perm | |
| 8 | 261 |
|
35/47 | 100% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 9 | 961 |
|
🥉 | 3/52 | 100% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow |
| 10 | 769 |
|
10/40 | 100% | 2.90 | CRR | Autumn Agari tournament | Moscow | |
| 11 | 864 |
|
4/23 | 100% | 2.10 | CRR | Mushroom League | Moscow | |
| 12 | 215 |
|
85/108 | 86% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 13 | 253 |
|
66/88 | 57% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 14 | 486 |
|
58/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 15 | 612 |
|
27/68 | 0% | 3.50 | RR | Tenpai can't buy happiness | Perm | |
| 16 | 511 |
|
24/48 | 0% | 3.10 | RR | Agari team tournament | Moscow |