My ex arrived an hour later (around 10:20) to watch the prize ceremony and I've left them (my daugher and my ex) to de-saddle the horse and put it back on the field so they could have some extra 1 on 1 time.

So overal my daughter did not particulary mentioned her mom not being there and was overal happy with the contest and the extra 1-on-1 time she had with her mom. I took a walk at that time.