if win bets can be made if boths start at same time or 2nd team can start in afternoon and 1st team can start at night. all it means is you have a bet on the next team if the preceding bet wins. you can play 2nd team with more juice by betting flat bets on all teams (risk instead of wager). also there if a if win or tie bet which means you have action on 2nd team if 1st team ties. on a if win only if you push the 1st bet all other bets are cancelled and you get your money back.
examples
3 team if win only with 100.00 wagered at -110 juice
1st team wins = 100.00 win, 2nd team wins = 100.00 , 3rd team wins = 100.00 win. total + 300.00
1st team wins = 100.00, 2nd team wins = 100.00, 3rd team loses = -110 lost. total +90.00
1st team wins = 100.00, 2nd team loses= 110.00 lost. total -10.00
1st team loses = -110.00 lost. no action on 2nd team as 1st bet lost.