Cincinnati is +69.6 units since 1997 when playing on the road. St Louis is 31-42 at night this year.
I think one of the keys in this game is Arroyo's K/BB ratio. Arroyo has 135 strikeouts this year compared to only 38 walks. Over his last 3 starts Arroyo has 17 strikeouts and only four walks. We'll recommend a small play the Cincinnati Reds tonight! Thanks and good luck.