When you bet the money line on any soccer game, there can be three outcomes, also known as 1 x 2. The home team can win, the away team can win, or the match can end in a draw.
In regular season contests, such as the English Premier League, all matches are determined in the standard 90 minutes of play, plus any time added on for injuries and substitutions. A draw would be when the two teams have the same score when the final whistle is blown.
For example, on Saturday, March 16, Bournemouth (odds to win were +125) was playing Newcastle (odds to win were +200) at home, while the odds for the match to end in a draw (or tie) were (+180). Bournemouth tied that match up late, and it ended up 2-2 at the final whistle. If you bet the draw (+180) for $100, you would have won you $100 back plus $180, for a total of $280 returned to you.
The interesting thing about betting soccer, unlike other sports, is that once regulation is over, the bet is over. If you bet a match to draw, and it goes to extra time and/or penalties (which happens in tournaments or knock out competitions), no matter what the result ends up, you win you bet.