Posted by grant85 on 2023-01-11 13:16:57
neat! thanks for the update
Posted by MattDakka on 2023-01-11 13:18:39
Awesome update, thanks for it, Christer!
Posted by Habeli on 2023-01-11 14:54:47
For tournament play the 2 day period seems quite short. Otherwise seems like a nice system.
Posted by commisaro on 2023-01-11 17:20:37
Thanks for this! Might we get an update to the ratings displayed on our profile at some point? My profile shows my [R] rating still even though I only had 10 games in [R], and have played many more [C] games at this point.
Posted by Dynamix on 2023-01-11 17:51:42
Nice I guess for those that are interested in CR but CR fixation is a road to hell IMO
Posted by MattDakka on 2023-01-11 18:02:03
CR is a useful tool to evaluate your performance and provides a goal in a perpetual division. Also, it helps to spot quickly the good coaches who play in the Box. If I want to watch replays of a specific race, I check high CR coaches.
So, CR is nice and the more accurate, the better.
Posted by PurpleChest on 2023-01-11 19:29:44
Posted by Halfabrain on 2023-01-11 22:02:20
Nice one Christer
Posted by Tenax on 2023-01-11 23:33:20
I appreciate the change especially in what concerns the rating of coaches who do not play often and it is not fair that they are always in the top ranks. But I would also appreciate having more details regarding the formula if only to understand why - for instance - in this game which I draw I lost 1559 points and collapsed to amateur levels.
Thank you Christer if you can clarify this point by making the mathematical formula of the rating public. I believe there are many people on this site who know the rudiments of mathematical analysis
Posted by C0ddlefish on 2023-01-12 00:07:07
That's clearly an error/bug. It's all based on Glicko-2. If you can understand that even after an explanation you are a better person than me
Posted by Christer on 2023-01-12 12:09:49
Yes, there's a bug that affects a portion of the matches and CR just goes down the drain. Investigation is in progress, and I'll try to figure it out tonight. All the CRs will be recalculated, so it will be fixed eventually.
Posted by mayhemzz22 on 2023-01-12 12:46:27
like the idea of this and interesting to see how it plays out :)
noticed an issue with my last game I seem to have knocked -1146 off my opponent but gained 0 myself.
Posted by MattDakka on 2023-01-12 14:17:08
My last match, if it can be useful: https://fumbbl.com/FUMBBL.php?page=match&id=4430597
Won 0, my opponent lost 1314.
Posted by Tenax on 2023-01-12 14:30:07
Christer thank you very much for the effort to fix it! Very appreciated. You're great!
Posted by garyt1 on 2023-01-12 14:40:32
Good job Christer. So if the deviation increases but mean doesn't then is the decay element just that a person with larger CR uncertainty would drop below someone with identical CR but less deviation?
Posted by Christer on 2023-01-12 16:15:27
Correct garyt1. The core rating doesn't change (which maintains the integrity of the rating system as you're not just artificially removing rating from it all). Glicko isn't inherently zero-sum like Elo so outright removing rating isn't inherently a disaster.
Posted by BigChiefSittingDuck on 2023-01-12 21:05:14
Interesting update, thank you Christer! Don't know if it's possible, but I think it would be great if the CR change on a match result reflected the 'rock - scissor - paper' nature of Blood Bowl. For example at the moment if my halflings take on some dwarfs, that is obviously a very hard match up whoever you play, but if I win I currently get the same CR boost as if I'd played some other stunties played by the same opposing coach. It would be great if you could add to your calculations say a 20% boost if your 'paper' side just beat a 'scissors', no alteration if you beat another 'paper', or -20% deduction if you just beat a 'rock' as that was one you were expected to win. I'm not that interested in CR myself (being primarily as halfling and goblin coach :D), but would that be possible? I think that would increase accuracy if you are interested in CR, plus as a bonus it would give coaches an incentive to take on hard match-ups rather than dodge them (which undoubtedly happens a lot on the gamefinder for all kinds of sides).
Posted by Eki on 2023-01-13 08:22:54
Oh yeah. It's a great update. Removing non-playing trainers is best. in 2022 i think i only played 1 RRR. Congratulations Christer because a change like the one you have made was needed
Posted by SanKuKai on 2023-01-17 16:44:27
Huhuhu I understand absolutely nothing about the ranking system... a week ago I was an emerging star (i'm coming for youuuu...!), yesterday I was a Star (WOW!!!: D), and today after a victory I am a Veteran (show me respect!)... If all goes well, tomorrow I will be a legend? :D
Posted by Verminardo on 2023-01-18 20:57:50
Strangely, despite all the valid points that have been made over the years on what CR does and doesn't say, I don't like the look of "Emerging Star" at the top of my profile. I don't like it at all. This is a ploy to lure estranged old hands like myself back into playin [C], isn't it? Well played, Christer, well played indeed.
If you will now excuse me, I have some teams to build for the Box Trophy.