Nizhurin Sergei
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date May 3, 2025 (latest changes May 3, 2025).
220 place (171.63).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (28.04 * 4 * 0.29 + 806.45 * 1.80 * 1 + 0 + 0 + 0) / (4 * 0.29 + 1.80 * 1 + 1 + 1 + 1) = 249.65504476004574
p2 = (806.45 * 1.80 * 1 + 28.04 * 4 * 0.29) / max_coefficients = 93.60567823343848
score = 249.65504476004574 * 0.5 + 93.60567823343848 * 0.5 = 171.63036149674213
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-05-03 | 220 | 162.41 -> 171.63 |
SPB Riichi Open 2023: 43% -> 29% |
| 2025-04-27 | 214 -> 220 | 162.41 | |
| 2025-04-26 | 213 -> 214 | 162.41 | |
| 2025-04-22 | 218 -> 213 | 162.41 | |
| 2025-04-13 | 216 -> 218 | 162.41 | |
| 2025-03-29 | 213 -> 216 | 162.41 | |
| 2025-03-23 | 203 -> 213 | 162.41 | |
| 2025-03-03 | 207 -> 203 | 154.77 -> 162.41 |
SPB Riichi Open 2023: 57% -> 43% |
| 2025-03-02 | 206 -> 207 | 154.77 | |
| 2025-02-25 | 207 -> 206 | 154.77 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
|---|---|---|---|---|---|---|---|---|
| 1 | 806 |
|
7/32 | 100% | 1.80 | CRR | "Green Dragon" in the Secret Chamber | Korolyov |
| 2 | 28 |
|
105/108 | 29% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg |