Mandatory series-entry commitment (riders must commit to all rounds for full points); Drop-the-worst scoring: best 7 of 9 rounds count toward final standings; Series leader's jersey (presented at each round)
Why people argue about this
People often assume that joining a series automatically means they have to compete in every race, which isn't necessarily true according to the rules. However, there's also confusion because the official statement doesn't clarify whether riders can opt out of races within the series or if missing too many races could affect their points tally.
