If any members decide not to race it has no effect on your co-ops league.
The only time it does effect your league is if all members in the co-op opt out and no one is racing that week. If that happens your co-op will be demoted a league at the end of that Regatta.
When you opt out regatta they play like, like....like. So say 27.
Then you opt out 26 the next regatta you play against 26 and nearest. Your team is not punished.
Thanks for the advice, but please try to prevent double or triple posting.
If I can not race next regatta and all my tasks are completed for the current race, can I opt out before end of race without loosing my rewards?
No, in this case you should opt out after this current race is over.
What is the benefit of opting out of not if u don't or can t participate in the regatta?
I believe it'll help out your team's weekly results, since total score is averaged over the number of participating players. If one or more players don't participate but don't opt out, the team's weekly score is lower than it could have been. It might also help with race placement (like if you have 26 participating members, you will likely not be placed with co-ops with 30 participating members who have a numbers advantage on you).