Chichigin Andrey
From Odintsovo, Russia
EMA: 15990028
Internal rating (RR)
Rating date Feb. 8, 2026 (latest changes Feb. 4, 2026).
126 place (325.25).
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 * 0.14 + 156.86 * 3.05 * 0.43 + 726.32 * 3.85 * 0.57 + 337.08 * 3.75 * 0.71 + 274.51 * 3.05 * 0.86 + 333.33 * 2 * 1) / (3.05 * 0.14 + 3.05 * 0.43 + 3.85 * 0.57 + 3.75 * 0.71 + 3.05 * 0.86 + 2 * 1) = 390.64343307898145
p2 = (726.32 * 3.85 * 0.57 + 337.08 * 3.75 * 0.71 + 274.51 * 3.05 * 0.86 + 333.33 * 2 * 1) / max_coefficients = 259.866220735786
score = 390.64343307898145 * 0.5 + 259.866220735786 * 0.5 = 325.25482690738374
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-02-04 | 127 -> 126 | 325.25 | |
| 2026-02-02 | 127 | 327.09 -> 325.25 |
Agari Winter Tournament 2025: 100% -> 86% |
| 2026-01-26 | 126 -> 127 | 327.09 | |
| 2026-01-25 | 124 -> 126 | 327.09 | |
| 2026-01-14 | 125 -> 124 | 327.09 | |
| 2026-01-12 | 127 -> 125 | 327.09 | |
| 2026-01-10 | 126 -> 127 | 332.48 -> 327.09 |
Agari Spring Tournament 2024: 29% -> 14% |
| 2026-01-07 | 121 -> 126 | 332.48 | |
| 2026-01-01 | 113 -> 121 | 353.00 -> 332.48 |
SPB Riichi Open 2024: 71% -> 57% |
| 2025-12-13 | 113 | 357.53 -> 353.00 |
Moscow Riichi 2024: 86% -> 71% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 333 |
|
11/16 | 100% | 2.00 | RR | Random not fault | Moscow | |
| 2 | 275 |
|
38/52 | 86% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow | |
| 3 | 337 |
|
60/90 | 71% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 4 | 726 |
|
27/96 | 57% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 5 | 157 |
|
44/52 | 43% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow | |
| 6 | 686 |
|
17/52 | 14% | 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 |