It would have won in this case, but most experienced bettors rarely make such a wager (or wagers) King.
You can consider that a middle I suppose, but a very expensive one with the ML.
Most middles come when a line opens up at, say Chicago -1.5, but then the line may rise to Chicago -3.5 for some reason or another, and then the player will take the other team at +3.5, hoping Chicago wins by 2-3 points.
From my experiences, the best value on middles can be found at halftime when you are already on a side or total, esepcially the NBA.
Some call it a hedge, but it's kind of both, and I call it a "Midge"
Let's I play Dallas/Oklahoma City Under 200 for the game.
At halftime, the score is 48-48.
That still gives me 104 points to spare in the 2nd half to hit my under.
The 2nd half total may be over/under 96.
But, I may then want to take OVER 96 for 2nd half, which does 2 things.
1: It gives me the chance to hit BOTH WAGERS because I have 7-8 points to play with, meaning as long as it goes over 96 2nd half, but stays under the 104 I still have to allow, I will hit my original play plus my 2nd half over.
2. It basically covers your behind just in case teams do catch fire in the 2nd half, or you noticed them heating up at the end of the 1st half & didn't like the way things were beginning to look, and if it goes over you original wager of under, that means it has gone over your 2nd half play on over 96 as well, which evens things out. (Except juice of course)
It's not something to do all of the time and some longtime bettors will tell you to stick with your original play if it is on pace to win, but I've had much success in the past with this in the NBA.
When the situation is right, you have a chance to win 2 wagers at no risk.
I've lost far too many NBA games in which I had an under & the 1st half was very low scoring, and then they explode in the 2nd half.
Problem is it takes time and you have to be around in front of the computer monitoring the games you played until halftime.
As I said, it depends on how things look going into halftime, stat-wise, if you saw a change in the teams just before halftime & don't feel good about it, etc.
How long you been at this King?