What Do +1.5, -1.5 and Over 2.5 Mean in Betting?

Quick answer: what each line means

The minus sign marks the favourite, who has to give a head start. The plus sign marks the underdog, who gets one. "Over" and "under" bets are about the total goals scored by both teams together.

What does -1.5 mean in betting?

-1.5 means the team you back starts the match 1.5 goals behind. They need to win by 2 goals or more to cover it. It's a handicap bet, also called a spread in the US or an Asian handicap in football.

Take Manchester City vs Fulham. City are 1.44 to win the match with Unibet. That price is short because City are big favourites. Back City -1.5 instead and the price jumps to 2.07, because now a narrow win isn't enough.

A £10 bet at 2.07 returns £20.70 if City win by 2 or more. At 2.07, the bookmaker rates that at about a 48% chance. So -1.5 suits you when you think a favourite will win comfortably and the straight win price is too short to be worth taking.

What does +1.5 mean in betting?

+1.5 means the team you back starts the match 1.5 goals ahead. Your bet wins if they win, draw or lose by just 1 goal. It only loses if they're beaten by 2 or more.

Fulham +1.5 is the other side of City -1.5. Fulham are 6.75 to win the match outright, but Fulham +1.5 is 1.725 with Bet365, because a 1-0 or 2-1 City win still pays out.

A £10 bet at 1.725 returns £17.25. +1.5 suits you when you think an underdog will keep it close, even if they don't win.

Why do betting lines end in .5?

You can't score half a goal, so a .5 line always has a clear winner and loser. There's no way for the bet to land exactly on the line, which means no refunds and no draws.

You'll also see whole and quarter lines, mainly on Asian handicap markets:

• Whole lines (-1, +1, 2 goals): if the result lands exactly on the line, you get your stake back. City -1 is 1.65 with Bet365. City winning by 2+ wins the bet, a 1-goal City win refunds it, and a draw or Fulham win loses it.
• Quarter lines (-1.25, +0.75, 2.75 goals): your stake is split in two across the lines either side. City -1.25 is half on -1 and half on -1.5, so a 1-goal City win refunds half and loses half.

The .5 lines are the simplest to follow, which is why they're the ones most bettors start with.

What does over 2.5 goals mean?

Over 2.5 goals means the match needs 3 or more goals in total, from either team. Under 2.5 wins if there are 2 goals or fewer. It doesn't matter who scores them or who wins.

Over 1.5 and over 3.5 work the same way, just with a different number of goals needed. Here are the City vs Fulham prices:

The higher the line, the longer the over price. With City at home, over 2.5 is a short 1.45, about a 69% chance. Over 3.5 needs a fourth goal, so it drifts out to 2.30.

The same idea applies to any total. Corners, cards and team goals all have their own over/under lines, and they all end in .5 for the same reason.

What -1.5 and +1.5 mean in other sports

The rule is the same in every sport: the minus side has to win by more than the line, and the plus side can lose by less than it. Only the unit changes.

In tennis, -1.5 sets in a best-of-three match means your player has to win 2-0. +1.5 sets means your player only needs to win one set.

Totals work the same everywhere too. Over 220.5 points in basketball or over 8.5 runs in baseball follow the same rule as over 2.5 goals.

How to get the best price on these lines

Bookmakers price the same line differently, and the gaps are bigger than most people expect. Here's the City vs Fulham -1.5 handicap at four UK bookmakers:

A £10 bet on City -1.5 returns £21.00 at 10BET but only £20.50 at Ladbrokes. On the other side, Bet365 is best for Fulham +1.5 at 1.73, while Unibet is down at 1.67. The best price isn't always with the same bookmaker, and over hundreds of bets, gaps like these decide whether you finish up or down.

The best price isn't automatically a good bet, though. The next step is checking it against Pinnacle's fair odds, which is Pinnacle's price with its margin taken out. When a bookmaker pays more than the fair price, that's a value bet.

Finding this by hand means checking every bookmaker and devigging Pinnacle's price before the line moves. OddsHub compares handicap and over/under prices across 490+ bookmakers, and the Fair odds toggle shows the no-vig price beside them. You can see straight away whether a price beats Pinnacle, and whether it beats fair. You can also check how the line has moved since it opened, free with an OddsHub account.

Compare every line before you bet

Handicaps and over/under goals are where bookmakers disagree most, and where the best price is easiest to miss. OddsHub shows every bookmaker's price on -1.5, +1.5, over 2.5 and the rest side by side, with no-vig fair odds alongside, so you always know which price to take.

Compare odds free on OddsHub