We make a bet 33.78 in US dollars for 'first team wins' in StanJames using odds 3.
We make a bet 6.27 in US dollars for draw in Bet24 using odds 3.3.
We make a bet 59.96 in US dollars for 'second team wins by spread +0.25 in Bet1128 using odds 1.69. This bet is splitted into two equal partial bets 29.98, first bet is for 'second team wins by spread 0 (money lines 1-2), second bet - for 'second team wins by spread +0.5, that is for 'second team wins or draw'.
Total size of all bets in US dollars is 100.
If first team wins, we get 33.78*3 = 101.34, our net profit is 1.34.
If match draws, we win second bet and get 6.27*3.3 = 20.69, plus a half of the third bet wins 29.98*1.69 = 50.66, plus we get a half of the third bet back 29.98, in total 101.33, our net profit is 1.33.
If second team wins, we get 59.96*1.69 = 101.33, our net profit is 1.33.