We actually had to revert our rollout of CF Workers because enough of our users were in Spain and couldn’t access endpoints at seemingly arbitrary times (due to the matches)
Your customers should be proper Spaniards and be watching the match, hence not noticing the downtime! /s
Your answer is better than mine
They are only seemingly arbitrary to people that are not actually paying attention. Now that people are, the blocks are known in advance to those that look at a the schedule. Sure, it sucks to have to build this into your own schedule, but that's better than it happening "unexpectedly". You could do something crazy like import these times into your own calendar with reminders.
Absolutely ridiculous to make people do that. What you're proposing is not a real solution. The real solution is to not block wide IP ranges at the random desire of some private football league.
I'm not sure what you're saying. Obviously the schedule of matches is public. But what are you suggesting the business does during this time...? Their site is offline.