Cognetti's odds improve slightly from -275 to -325 over this past month with Republican candidate Rob Bresnahan promising a payout of $250 for every $100 bet.
Democrat Bobby Pulido, a popular Tejano musician, is now a -800 favorite to win here. That represents a three-point jump from October 5 when Pulido came in with -500 odds.
BetOnline on Friday shifted Alaska Democratic Senate candidate Mary Peltola odds from -325 to -350 while GOP incumbent Senator Dan Sullivan promises a payout of $275 for every $100 bet.
There are now margin of victory odds available for the Ohio governor's race with Amy Acton winning by 7.5% or more the favorite paying out $205 for every $100 bet.