Horse Racing Question

Say, anyone know of a racebook that takes parlays? Comes in handy if you wanted to parlay 2 horses which were running at different tracks but around the same time. Or if the races were at different times but you were tied up in an appointment that spanned the whole time between the 2 races. 

I think (not 100% sure though) I recall seeing that option on the old 5 dimes platform, but betanysports, which used to use the same platform as 5D, doesn't offer it now. Nor do some other offshores that I've seen. Any ideas?

@Stew Baker

 There's a Cross Country Pick 5 that's in play today. That's all I've seen for today.

You can play it at TwinSpires .

@Midnight1

Not looking for any day or races in particular, just a book that will let you parlay one random horse in some random race to another random horse in some other random race.

@Midnight1 (cont.)

More than likely such a book would be offshore, a book that handled their own action, i.e. wasn't tied into the parimutual system.

@Stew Baker

 Can't think of any.

UPDATE: As of this post, I've found two offshore books, apparently reputable as they are in the top-rated sportsbook list on OSGA, which offer parlays in horse racing: names are MyBookie.ag and BetNow.eu. However, they seem quite disinclined to doing business with winning players. In their Terms and Conditions, MyBookie states that their services are "intended for recreational players only" and that they "reserve the right to limit or close any client account if it's being used otherwise." BetNow has a similar disclaimer, except they stipulate that if the "wagering behavior isn't consistent with that of a recreational player", that they "reserve the right to withraw any possible winnings from the account"!

I will continue to look for racebooks which offer parlays in horse racing. Appreciate any constructive input!