I am sure this has been covered many times but how do the categories work in Zwift racing?
I am currently racing in D category on the tour de Zwift & Zwift games and a lot of people I am racing against appear to be C category riders according to their profiles. I didn't think this was possible, I thought I can race a C as a D but a C can't race as a D?
I raced yesterday and came in about 50th but probably the top 30 were all C riders, which sort of defeats the object of having the split categories. I generally just use the racing to build fitness so I am not expecting to be on the podium but I'm just curious.
ZRS is a random number generator.
Your core number placement is set by your best 5mins effort in the last 90 days and the weight you claimed at the time, but the number generated at the same W/Kg is lower for lighter riders. Seed score calculator...
https://peca.vigred.com/blaz/zrs2.php
How your number changes after finishing a ZRS race depends on a few key things...
The number of signups in your pen, not how many started the race or crossed the finish line. The less signups, the bigger changes are at that pen level compared to a race with more signups, all the way down to just two signups!
Finish in top ~50% of pen signups, ZRS increases, in bottom ~50% it decreases. It doesn't care who should have beaten whom on paper. Some around middle get no change.
You will be given your ZRS decrease providing you demonstrate enough effort, but this bar is a pathetic ~75%+ of your 90-day best 5mins Watts.
If you podium, you will get a small extra ZRS increase.
Your ZRS can drop 15% below your seed number, so the higher the pen you are assigned to, the more chance you can purposely drop your ZRS enough to get a pen demotion below what your seed number says.
If you set a new 90-day 5mins best, your ZRS will adjust to ~85% seed, if your ZRS was below that number.
If you don't do a ZRS race for 30 days, I think we are back having a stupid daily decay.
It's such an awful system, ZRS doesn't equal ability, you often see racers playing the system to stop getting the pen promotion they should get or sandbag to get into a lower pen for a race or two before sangbagging again. Some are entering races now to not finish as high as they can, it's a farce. I'm sure some of my better results are because others didn't want the extra ZRS points for finishing higher!
Chrome plugin for zwiftpower to see the mess...
https://chromewebstore.google.com/detail/zwiftpower-zrs/pndlnaffagkomheigejpimbpdmapmfef