I was going to run this filly in a 7f maiden.

But when the race came round her stamina bar had gone up to this.

So I passed on that and looked for something a bit further.
Then I noticed her stamina bar was back down again and I thought I had made a mistake.
These two images were taken on the same day, sometimes the bar is low and sometimes it's high.
So my question is, What distance should I run her?
