Maniakhin Petr
From Saint Petersburg, Russia
EMA: 15990315
Internal rating (RR)
Rating date Dec. 21, 2024 (latest changes Dec. 11, 2024).
104 place (320.09).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (682.24 * 4 * 0.71 + 494.74 * 3.85 * 1 + 0 + 0 + 0) / (4 * 0.71 + 3.85 * 1 + 1 + 1 + 1) = 397.02900939508817
p2 = (682.24 * 4 * 0.71 + 494.74 * 3.85 * 1) / max_coefficients = 243.15709779179812
score = 397.02900939508817 * 0.5 + 243.15709779179812 * 0.5 = 320.09305359344313
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2024-11-06 | 107 -> 104 | 320.09 | |
2024-11-03 | 106 -> 107 | 340.31 -> 320.09 |
SPB Riichi Open 2023: 86% -> 71% |
2024-10-13 | 95 -> 106 | 343.08 -> 340.31 | |
2024-10-11 | 98 -> 95 | 343.08 | |
2024-09-06 | 99 -> 98 | 343.08 | |
2024-09-03 | 93 -> 99 | 357.44 -> 343.08 |
SPB Riichi Open 2023: 100% -> 86% |
2024-09-01 | 77 -> 93 | 313.88 -> 357.44 |
SPB Riichi Open 2024: 0% -> 100% |
2023-11-06 | 83 -> 77 | 309.20 -> 313.88 | |
2023-10-12 | 87 -> 83 | 305.05 -> 309.20 | |
2023-09-28 | 84 -> 87 | 322.28 -> 305.05 |
Saint Petersburg Open 2021: 29% -> 14% |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 495 |
|
49/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 |
2 | 682 |
|
35/108 | 71% | 4.00 | RR | SPB Riichi Open 2023 |
3 | 627 |
|
29/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 |
4 | 476 |
|
34/64 | 0% | 3.45 | EMA | Saint Petersburg Open 2019 |
5 | 513 |
|
20/40 | 0% | 2.90 | RR | Summer Cup 2019 |
6 | 256 |
|
30/40 | 0% | 2.90 | RR | North Cup 2018 |
7 | 304 |
|
17/24 | 0% | 2.50 | RR | West cup 2018 |
8 | 408 |
|
43/72 | 0% | 3.55 | EMA | RCR Saint Petersburg South Cup 2018 |
9 | 516 |
|
16/32 | 0% | 2.70 | RR | East Cup 2018 |
10 | 60 |
|
79/84 | 0% | 3.40 | EMA | VI Russian Riichi Championship 2017 |