Red Alert Global League: Season 11 - Registrations

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TTTPPP
Posts: 91
Joined: Wed Sep 05, 2018 8:25 pm

Re: Red Alert Global League: Season 11 - Registrations

Post by TTTPPP »

The rules around how the RAGL divisions are drawn up are not particularly easy to follow, so I thought it would be worth going through the decision making process for drawing up the divisions for this season.

To start with let's look at rule 1.3.9:
1.3.9 Due to the nature of the League, actual promotions/relegations between divisions can't be defined up until the start of the next season. Relegation zone size (Masters and Minions) is set by default as approx. 30% of the maximum player count for the respective group. Promotion zone size (Minions) is set according to Masters relegation zone and the number of Minions groups. Preliminary promotion/relegation spots are set once the season is started.
For Season 10 Masters had 10 players, so the relegation zone should have been 3 players. This would mean that the top 7 players should stay up. However, since FiveAces and Sigil were exactly tied (2 wins each and 1-1 in the head-to-head) then they would have needed a tiebreak to determine the order. For this reason (and a few others) we decided to increase the retention zone to include all eight players. We then promoted the top two finishers from Minions (Goremented and Pinkthoth) to bring us back to ten.

The rules allow placing players from the signup list directly into Masters if there's evidence that they're good enough:
1.1.7 League officials reserve the rights to not honour the above rules in special cases. In particular performance in the OpenRA 1v1 Ladder and previous RAGL seasons will be taken into account.
To combine the ladder and RAGL data then I used the Glicko 2 rating algorithm with a one week period and ran it against all the matches from RAGL and the ladder. Conveniently all players had played at least one game in this data set. I'll cover the full details of this in another post, but for now it's sufficient to see the combined ladder ratings for all the signups:

Returning players (in S10 finishing order):

Code: Select all

Pos  Player           Rating Pld  Won
  2, goat            , 1866, 101,  90
 11, Mr Cloudy       , 1559, 330, 214
 37, Upps            , 1395, 190,  78
 34, anjew           , 1425, 209,  86
 23, Blackened       , 1475, 131,  76
 27, KSK_Nico        , 1453, 139,  82
 47, FiveAces        , 1320, 203, 103
 57, Sigil           , 1236,  64,  34

 25, Goremented      , 1467, 718, 379
 14, Pinkthoth       , 1531, 196, 145
 68, Ekanim          , 1211, 121,  47
 73, Mo              , 1184,  87,  35
 36, Eugenator       , 1403, 275, 158
 61, TiTo            , 1229, 467, 150
 94, Duke Bones      , 1093,  80,  34
 64, Kaution         , 1224, 159,  43
132, TTTPPP          ,  949,  80,  26
173, Nilhall         ,  784,  64,  16
201, MR C            ,  707, 110,  10
New signups (in rating order):

Code: Select all

Pos  Player           Rating Pld  Won
  4, Kav             , 1847, 211, 184
  6, Clockwork       , 1689, 179, 133
  9, ZxGanon         , 1663, 131, 100
 15, SinJul          , 1526, 266, 174
 49, maceman         , 1289, 207, 104
 63, ROCKhardFISTnips, 1224,  48,  24
 66, Gajcus          , 1218,  21,  17
 69, Dodder          , 1207, 192,  73
 89, DVoid           , 1115,  24,  14
136, worldpeace      ,  918,  50,  11
142, manta151        ,  879,   2,   2
164, Tailix Killa Men,  800, 111,  24
227, Therapist       ,  610,   4,   1
299, potato          ,  452,  47,   6
We wanted an even number of players in Masters, and it seemed reasonable to make the cut-off between SinJul (Masters) and maceman (Minions). Additionally it's worth noting that Eugenator is position 36 in the combined ladder, and was put in Minions due to his S10 performance - it wouldn't be particularly fair to promote maceman (position 49) ahead of him.

Once Masters was fixed then that left 19 players in Minions. We used the combined ladder ratings again to order all the remaining players and then split the players into two divisions using the "tennis tiebreak sequence" (ABBAABB...).

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