Spring Classics info & rules

Slovenian Zwift Spring Classics is a race seriƩ with 4 races over a 4 week period in, , , group. Races will be held every Sunday at 10.30 AM CET, according to the published calendar. Everyone is welcome to take part and participate, score points in a single race or entire series.

Group categories

We use standard zwiftpower.com category limits which are based on 95% of your Peak20min power output:

over 4.0 W/kg
3.2 W/kg to 3.99 W/kg
2.5 W/kg to 3.19 W/kg
Under 2.49 W/kg

Generally, your profile data at zwiftpower.com (abbreviated as ZP) determines in which category you should race. ZP continuously monitors your performance and calculates your Category on a rolling base for the last 90 days (~3 months).

If you are new and didn’t participate in an event on Zwift yet or don’t know your category yet, use 95% of your best 20-minute effort and divide it by your weight in kilograms and pick the correct category.

Example: 73 kg heavy rider has recorded his Peak20min effort during all-out climbing @289watts.

Category => (289W x 0.95) / 73kg = 3.76 W/kg => Cat

Important note: We are 100% dependent on ZP monitoring and their statistical service. This also means that if you get upgraded by ZP during the league, you will be upgraded in the points system and start with zero points in higher Category. If you are close to the Category limit, and you are not a very experienced Zwifter or long-time rider familiar with your power output, we recommend choosing a higher Category. It can be heartbreaking if you simply improve during League, with your heart pumping more blood, lungs extracting more Oxygen and legs pushing pedals stronger and get filtered from results, relegated to higher Category with a new start from Zero.

Mandatory requirements and Race settings

  1. Heart rate monitor.
  2. Smart trainer or power meter.
  3. Participants must be registered on Zwiftpower.com with obligatory OPT-IN in zwift.com Profile. How to register and opt-in (instructions): Link 1, Link 2.

Starting times are separated per categories with NO power-ups:
+ 0 minutes
+ 1 minute
+ 2 minutes
+ 3 minutes