Before we delve into Bet365 odds specifically, let's start by understanding what odds represent in sports betting. Odds are a numerical expression that reflects the probability of a particular outcome occurring in a sporting event. It also indicates the possible profit you can obtain if your bet is successful.

A +1.5 spread is commonly seen in baseball betting, the standard runline  for MLB. This spread means the underdog must win outright or lose by exactly one run to cover the spread. Alternatively, a -1.5 spread means that the favorite must win by at least two runs. Many baseball games are decided by fewer than two runs.