Race Chart Abbreviation Codes ?

[makingit]

In a chart of a race what does DXPU mean?  I know what a few of the letters mean but not all.

[Kirby's Ace]

Driver caused the horse to break and then he was pulled up.  Usually when locking wheels or running up on someone.

[makingit]

Thanks. I was going to ask for an example of how a driver would cause a break. Thanks again

[PineHurstPacer]

https://racing.ustrotting.com/abbrcodes.aspx

[makingit]

Thanks PineHurstPacer !