First 5 secs of vid, post parade race 3, you see Clements 4 "fly up' past Mckenzie's #3.
Very few options after that cutting down towards rail but oncoming horse (warmup for race coming later or was it race 3 #1 that had turned back) was straight ahead.
Hate to see a 13 yr old like Read the Proposal, in a jamup like this.
Dan Clements missed remainder of drives
Tragic..sad but true outcome