+EV in horseracing?

[Frogic]

So I was having a conversation with a friend of mine. It has been a running joke with us about how his dad is a HUGE degen in regard to 'playing the ponies'. This time though he says that his dad mostly plays these pick 6 carryovers, that are +ev because of the dead money. I'm just curious if there is any weight to what he is saying, since this is from the same person who said you could pick winners by how the tail of the horse is sitting before the race.

Thank you for your help,
Frogic