assuming -105 lines...
bet 100 to win 281 = parlay
Team A vs Team B = you chose Team A to win
Team C vs Team D = you chose Team C to win
Team A wins, and your parlay is is pending Team C vs Team D
Bet $281 to win $267 on Team D
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Team C wins = you break even
Team D wins = you make $167
OR FOR GTD MONEY ON 2ND GAME..
bet $195 to win $186 on Team D
Team C wins = +86
Team D wins = +86
You can basically break it down that you can gtd $86 no matter who wins the 2nd game. ( this is also assuming the lines wont move)
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Now, my reasoning why this is not good long run?
Clearly shows why just betting the first game straight is more +ev, unless I am missing something?
The issue is winning the 1st game.
Lets say you win the first game 55% of the time
45x $100 = $4,500 loss
55x $86 = $4,730 win
net win = $230
Take that same example and just bet it straight with -105 to win $100
45 x $105 = - $4,725 loss
55 x $100 = + $5,500 gain
net win = +$775