Barabanov Alexandr
From Krasnogorsk, Russia
EMA: 15990380
Internal rating (RR)
Rating date Sept. 5, 2025 (latest changes Sept. 3, 2025).
151 place (280.30).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (775.70 * 4.60 * 0.71 + 215.69 * 3.05 * 0.71 + 0 + 0 + 0) / (4.60 * 0.71 + 3.05 * 0.71 + 1 + 1 + 1) = 356.6326949533901
p2 = (775.70 * 4.60 * 0.71 + 215.69 * 3.05 * 0.71) / max_coefficients = 203.96486486486486
score = 356.6326949533901 * 0.5 + 203.96486486486486 * 0.5 = 280.29877990912746
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-03 | 152 -> 151 | 280.30 | |
| 2025-09-01 | 152 | 277.62 -> 280.30 | |
| 2025-08-31 | 148 -> 152 | 277.62 | |
| 2025-08-09 | 149 -> 148 | 277.26 -> 277.62 |
Agari Summer Tournament 2024: 86% -> 71% |
| 2025-08-04 | 149 | 276.26 -> 277.26 | |
| 2025-08-03 | 142 -> 149 | 276.26 | |
| 2025-07-14 | 143 -> 142 | 276.26 | |
| 2025-07-13 | 140 -> 143 | 276.26 | |
| 2025-07-12 | 128 -> 140 | 305.29 -> 276.26 |
X Russian Championship: 86% -> 71% |
| 2025-07-10 | 130 -> 128 | 305.29 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 216 |
|
41/52 | 71% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow | |
| 2 | 776 |
|
25/108 | 71% | 4.60 | RR | X Russian Championship | Perm | |
| 3 | 919 |
|
10/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship | Moscow | |
| 4 | 743 |
|
10/36 | 0% | 3.20 | RR | Moscow Open Riichi Marathon 2019 | Moscow | |
| 5 | 830 |
|
9/48 | 0% | 3.10 | RR | Agari team tournament 2019 | Moscow | |
| 6 | 95 |
|
58/64 | 0% | 3.45 | EMA | White Dragon Tournament | Moscow | |
| 7 | 296 |
|
20/28 | 0% | 3.00 | RR | Moscow Open Riichi Marathon | Moscow | |
| 8 | 800 |
|
4/16 | 0% | 1.40 | RR | Red Dragon tournament 2017 | Moscow | |
| 9 | 370 |
|
18/28 | 0% | 2.60 | RR | Moscow Riichi Half Marathon 2017 | Moscow |