one can bet parimutuels with fixed odds
at 'betting exchanges' such as betfair
or ehorsex
these sites offer fixed odds for win
betting only
the site acts as a broker between individuals who 'offer'
or 'take' odds
on whoever wins the event
i once locked in a horse at ehorsex at
17-1 and it went off at 10-1 at the track
it still lost