How many tests do you recommend to do at one dressage show?

I personaly wouldnt do more than 2 on one day. Remember that for the horse a dressage test is not the worlds most exciting one, perticularly not at the level you are doing!
I generally stick to only 2 in a day. I find that 3 is a bit much once you've done your warm up each time. Horse gets pretty tired from the atmosphere and being ridden multiple times.
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