THE META REPORT NAME IS TOO LONG, TOO DAMN LONG (n°7)
by Legna
2021/05/19
Data
Second week of patch 2.7. Games after 2021-05-12 UTC
- Sample size: 39610 matches 1
- Of all games, about 5% was not available to collect
Regions’ Frequencies
By number of times a region is chosen
| Region | Play Rate | N |
|---|---|---|
| Bilgewater | 1.74% | 2750 |
| Demacia | 8.67% | 13726 |
| Freljord | 8.59% | 13591 |
| Ionia | 11.67% | 18468 |
| MtTargon | 8.35% | 13219 |
| Noxus | 11.04% | 17477 |
| PnZ | 8.26% | 13080 |
| ShadowIsles | 16.76% | 26530 |
| Shurima | 24.92% | 39439 |
By number of times a card within a region is chosen
| Region | Play Rate | America | Asia | Europe |
|---|---|---|---|---|
| Bilgewater | 1.56% | 2.25% | 2.98% | 0.81% |
| Demacia | 9.16% | 9.23% | 10.48% | 8.80% |
| Freljord | 9.1% | 8.72% | 9.30% | 9.27% |
| Ionia | 14.81% | 13.64% | 14.71% | 15.53% |
| MtTargon | 8.24% | 9.80% | 7.55% | 7.49% |
| Noxus | 10.42% | 11.95% | 9.90% | 9.64% |
| PnZ | 8.85% | 10.24% | 8.70% | 8.07% |
| ShadowIsles | 19.23% | 18.27% | 18.38% | 20.00% |
| Shurima | 18.63% | 15.91% | 17.98% | 20.38% |
Champions’ combinations
In this section I provide the play rate of which combinations of champions (plus the regions) are used in a deck. The champions showed right before a game starts for example. Right now it’s a simple approximation of the archetypes played in the ladder as such information is not restrictive enough.
Date by date
While I just showed the play rate of the champions of choice are those values the results stable or just the results of the early days with a new set of cards? I’ll now show the play rate obtained day by day. I opted not to show the confidence interval of the estimated play rates but only for this time. each day is colored based on the most frequent combination of champions played and the lines have different color only for the top5 most played ones. I decided to leave all the other and with the same color to give an idea about “the remaining” values.
Win rates
Tie games are excluded
Win rates of the most played combination of champions, against all decks, this week. Cases with less than 1% play rate games are excluded
Underdog(?) win rates
Top Win rates of the least played combination of champions. Min 300 games and a play rate of less than 2% play rate (in this sample)
Most played combination
The win rates on the grid are among the 10 most played champion combination. Match-ups with less than 300 games are not included
Match-up grid
While this is one of the most interesting data for many the results are still heavily affected by the small sample size. They may be the 10 most played combination of champions but it’s still a 100 cell grid. Also, while my approximation for archetypes usually works, this weeks more than usual, two decks are not well reported: Dragons and Azir/Noxus. In these two cases the inclusion of J4 / Garen / Zoe and Draven / Darius create different values for in the end it’s the same deck with just a couple of different card. I already have an idea and part of the code how to solve this but will use it for next week. I could use Dr.LoR approach with bayesian statistics but I want to be consistent with my metholody in order to have a better comparison for my results. Of course I can still make changes in the future if the quality vastly improve with them.
Match-up table
No filter this times because of the small sample size
Deck Structure of the week
This week I choose to show how the Matron / Cithria decks are made.
How to read the table:
Play rate: How often a card is included in this class of decks / the table is order by this column.
3/2/1 is the relative and absolute frequency of the number of copies in the decks that plays them
Frequencies from 50% to 100% are colored from shades of green to white to identify more easily the highest values
Matron / Cithria
Cards’ presence
Most played cards
Top 3 most used cards within each Region
Legal bla bla
This Meta Report was created under Riot Games’ “Legal Jibber Jabber” policy using assets owned by Riot Games. Riot Games does not endorse or sponsor this project.
Ranked games / Patch 2.7 / Master players & Top32 players from the latest Seasonal tournament
Last update: 2021-05-19 08:16 (UTC)
EU Master players in the ladder: 15 while the number of Master players I recovered from matches is: 272 so missing: -257
NA Master players in the ladder: 29 while the number of Master players I recovered from matches is: 229 so missing: -200
ASIA Master players in the ladder: 7 while the number of Master players I recovered from matches is: 86 so missing: -79