Not trying to simply be a grouch here but Clash was up and running for a week counting your five played games and locking you out for it's timer after you were done. Yet when Clash started, apparently a day ago instead of on the 6th as announced nothing was posted and still hasn't posted to let players know you can play for record now. That's a whole missed day right there for points.
Here's a pinned announcement thread with all dates and the details: Clash! is back!
You will also find the dates from lobby when you click Clash!: