Chichigin Andrey
From Odintsovo, Russia
EMA: 15990028
Common russian riichi rating (CRR)
Rating date Nov. 16, 2025 (latest changes Nov. 15, 2025).
131 place (353.51).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (686.27 * 3.05 * 0.29 + 156.86 * 3.05 * 0.57 + 726.32 * 3.85 * 0.71 + 337.08 * 3.75 * 0.86 + 274.51 * 3.05 * 1 + 333.33 * 2 * 1) / (3.05 * 0.29 + 3.05 * 0.57 + 3.85 * 0.71 + 3.75 * 0.86 + 3.05 * 1 + 2 * 1) = 400.35191386181805
p2 = (726.32 * 3.85 * 0.71 + 337.08 * 3.75 * 0.86 + 274.51 * 3.05 * 1 + 333.33 * 2 * 1) / max_coefficients = 306.67157190635453
score = 400.35191386181805 * 0.5 + 306.67157190635453 * 0.5 = 353.5117428840863
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-11-14 | 130 -> 131 | 353.51 | |
| 2025-11-12 | 131 -> 130 | 353.51 | |
| 2025-11-10 | 126 -> 131 | 365.65 -> 353.51 |
Agari Spring Tournament 2024: 43% -> 29% |
| 2025-11-04 | 122 -> 126 | 372.97 -> 365.65 | |
| 2025-11-01 | 120 -> 122 | 392.26 -> 372.97 |
SPB Riichi Open 2024: 86% -> 71% |
| 2025-10-13 | 119 -> 120 | 391.35 -> 392.26 |
Moscow Riichi 2024: 100% -> 86% |
| 2025-10-09 | 121 -> 119 | 387.70 -> 391.35 |
Agari Summer Tournament 2024: 71% -> 57% |
| 2025-10-04 | 122 -> 121 | 387.70 | |
| 2025-09-12 | 124 -> 122 | 387.70 | |
| 2025-09-10 | 118 -> 124 | 401.54 -> 387.70 |
Agari Spring Tournament 2024: 57% -> 43% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 333 |
|
11/16 | 100% | 2.00 | RR | Random not fault | Moscow | |
| 2 | 275 |
|
38/52 | 100% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow | |
| 3 | 337 |
|
60/90 | 86% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 4 | 726 |
|
27/96 | 71% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 5 | 157 |
|
44/52 | 57% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow | |
| 6 | 686 |
|
17/52 | 29% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow | |
| 7 | 140 |
|
93/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 8 | 40 |
|
73/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 9 | 811 |
|
22/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 10 | 191 |
|
39/48 | 0% | 3.10 | RR | Agari team tournament | Moscow | |
| 11 | 452 |
|
18/32 | 0% | 2.70 | RR | The last chance: back to 2019 | Moscow | |
| 12 | 198 |
|
90/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship | Moscow | |
| 13 | 683 |
|
21/64 | 0% | 3.45 | EMA | White Dragon Tournament | Moscow | |
| 14 | 158 |
|
17/20 | 0% | 1.50 | CRR | Agari tournament. First stage | Moscow |