Barabanov Alexandr

From Krasnogorsk, Russia

EMA: 15990380

Player page

Internal rating (RR)

Rating date April 19, 2021 (latest changes April 16, 2021).

51 place (381.61).

max_coefficients = (2.90 * 0.86 + 4.05 * 0.57 + 3.85 * 0.57 + 3.45 * 0.57) = 8.970979999999999

p1 = (742.86 * 3.20 * 0.29 + 918.92 * 4.05 * 0.57 + 0 + 0 + 0) / (3.20 * 0.29 + 4.05 * 0.57 + 1 + 1 + 1) = 450.4648859018594

p2 = (918.92 * 4.05 * 0.57 + 742.86 * 3.20 * 0.29) / max_coefficients = 312.75066938060286

score = 450.4648859018594 * 0.5 + 312.75066938060286 * 0.5 = 381.6077776412311

Rating changes

Show

Date Place Points Reason
2021-04-15 46 -> 51 419.89 -> 381.61

VIII Russian Riichi Championship: 71% -> 57%

2021-03-26 46 413.83 -> 419.89
2021-03-24 46 409.44 -> 413.83
2021-03-21 43 -> 46 434.11 -> 409.44

Moscow Open Riichi Marathon 2019: 43% -> 29%

2021-03-08 45 -> 43 427.02 -> 434.11
2021-03-05 46 -> 45 427.02
2021-03-04 48 -> 46 420.13 -> 427.02
2021-02-25 49 -> 48 420.13
2021-02-15 45 -> 49 449.94 -> 420.13

VIII Russian Riichi Championship: 86% -> 71%

2021-02-02 46 -> 45 449.94

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 919 2019-12-15 10/112 57% 4.05 EMA VIII Russian Riichi Championship
2 743 2019-07-21 10/36 29% 3.20 RR Moscow Open Riichi Marathon 2019
3 830 2019-01-13 9/48 0% 3.10 RR Agari team tournament 2019
4 95 2018-12-16 58/64 0% 3.45 EMA White Dragon Tournament
5 296 2018-07-15 20/28 0% 3.00 RR Moscow Open Riichi Marathon
6 800 2017-10-07 4/16 0% 1.40 RR Red Dragon tournament 2017
7 370 2017-09-24 18/28 0% 2.60 RR Moscow Riichi Half Marathon 2017