Late Pick 4 at Oaklawn today had the following prices --

$18.20
$47.60
$21.60
$76.00

$2 parlay pays $177,768.

The $2 pick 4 paid -- $84,052.60 -- less than half the parlay.

i know that the pools are unconnected.

my question is -- does paying less than half the parlay in this case mean something suspicious is going on or is it just normal volatility that while unfortunate is not a crazy occurrence? Should the person who collected half the parlay feel unlucky or feel robbed? If unlucky, is it very unlucky (like getting hit with a once a century event) -- or just run of the mill unlucky.