I can think of a few markets for the SCOTUS confirmation vote:
Will the 1st nominee be confirmed?
# of days from nomination to confirmation/rejection/withdrawal?
How many total yes votes?
Will Pence need to break a tie?
How many Republicans vote against confirmation?
Will all Reps vote for confirmation (including McCain)?
How many Dems vote for confirmation?
Will all Dems vote against confirmation?
Will he/she be confirmed within 50 days? (RBG's wait, the least of all sitting justices)
Will he/she be confirmed within 73 days? (The average of 8 sitting justices)
Will his/her confirmation take more the 99 days? (Clarence Thomas' wait, the longest of sitting justices)