Gromova Elena
From Saint Petersburg, Russia
EMA: 15990350
Common russian riichi rating (CRR)
Rating date March 28, 2023 (latest changes March 28, 2023).
10 place (616.09).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 0.86 + 2.80 * 1) = 14.04985
p1 = (773.33 * 3.45 * 0.57 + 729.73 * 4.05 * 1 + 677.42 * 1.80 * 1 + 974.36 * 1.80 * 1 + 0) / (3.45 * 0.57 + 4.05 * 1 + 1.80 * 1 + 1.80 * 1 + 1) = 701.7115558974253
p2 = (729.73 * 4.05 * 1 + 974.36 * 1.80 * 1 + 773.33 * 3.45 * 0.57 + 677.42 * 1.80 * 1) / max_coefficients = 530.4761260796379
score = 701.7115558974253 * 0.5 + 530.4761260796379 * 0.5 = 616.0938409885316
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-03-28 | 9 -> 10 | 631.25 -> 616.09 |
Saint Petersburg Open 2021: 71% -> 57% |
| 2023-03-20 | 11 -> 9 | 621.67 -> 631.25 | |
| 2023-03-06 | 12 -> 11 | 621.67 | |
| 2023-02-25 | 23 -> 12 | 547.99 -> 621.67 |
Earth cup: 0% -> 100% |
| 2023-02-19 | 25 -> 23 | 547.99 | |
| 2023-01-28 | 19 -> 25 | 561.53 -> 547.99 |
Saint Petersburg Open 2021: 86% -> 71% |
| 2023-01-06 | 20 -> 19 | 561.53 | |
| 2022-12-19 | 21 -> 20 | 559.23 -> 561.53 | |
| 2022-12-03 | 261 -> 21 | 87.84 -> 559.23 | |
| 2020-02-01 | 261 | 87.84 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 677 |
|
11/32 | 100% | 1.80 | CRR | Earth cup |
| 2 | 974 |
|
2/40 | 100% | 1.80 | CRR | Sun tournament |
| 3 | 730 |
|
31/112 | 100% | 4.05 | RR | Moscow Riichi 2022 |
| 4 | 773 |
|
18/76 | 57% | 3.45 | RR | Saint Petersburg Open 2021 |
| 5 | 423 |
|
42/72 | 0% | 3.55 | EMA | RCR Saint Petersburg South Cup 2018 |
| 6 | 32 |
|
31/32 | 0% | 2.70 | RR | East Cup 2018 |
| 7 | 436 |
|
23/40 | 0% | 1.80 | RR | Saint Petersburg championship. Northern cup 2017 |