“4.5”indicates the odds of Bicycle No. 1 placing 1st and Bicycle No. 7 placing 2nd. The lowest number indicates the race favorite.
The probability of winning such a bet is high, but the payout multiple is low. For example, a win on a bicycle-race ticket of 100 yen will result in winnings of 450 yen (100 yen × 4.5 payout multiple).