What is spread betting?
Spread betting refers to two distinct concepts that are often confused:
**Sports spread betting** (UK/European context): A form of sports wagering where you bet on whether an outcome will be above or below a 'spread' (a range of values). Your profit or loss depends on how far the result deviates from the spread — not just whether you win or lose. Example: a bookmaker sets a spread of 42-45 for total goals in a basketball game. If you 'buy' at 45 and the game ends with 52 points, you win 7 × your stake. If it ends with 38, you lose 7 × your stake.
**US point spread betting** (North American context): When Americans say 'spread betting', they typically mean point spread wagering — fixed-odds betting where a handicap is applied to equalize the teams. Example: New England Patriots -7.5 (must win by 8+). This is equivalent to Asian handicap in UK terminology. Your return is fixed at the odds offered (typically -110, or 1.91 decimal) regardless of margin of victory beyond the spread.
**Financial spread betting** (UK tax-advantaged): Betting on financial market movements (forex, indices, commodities) where gains are tax-free in the UK. Operated by firms like IG, Spreadex, CMC Markets. Not covered in this sports betting context.
This guide focuses on both sports spread betting and US point spread betting, as both are commonly encountered by sports bettors.
How US point spread betting works
US point spread betting is the dominant wagering format for NFL football, NBA basketball, college football, and college basketball. Understanding it is essential for betting on US sports.
**Reading the spread:** - Kansas City Chiefs -6.5 vs Baltimore Ravens +6.5 - The Chiefs are favoured by 6.5 points - A Chiefs bet wins if they win by 7+ points - A Ravens bet wins if they win outright OR lose by 6 or fewer points
**The -110 standard:** Most spread bets are priced at -110 (1.91 decimal, 10/11 fractional). This means you bet £110 to win £100. The 10% juice (vig) is the bookmaker's margin. Shopping for -105 or -108 lines (better than standard -110) is one of the most reliable ways to improve long-term ROI in US sports betting.
**Key numbers in NFL:** Football scores in multiples of common values. The most common final margin in NFL is 3 (field goal) and 7 (touchdown + extra point). Spreads of -3, -7, and -10 have special significance. Paying extra for a team to cover -3 vs -3.5 is often worth it due to the high frequency of 3-point final margins.
**Line movement:** Point spreads open days before the game and move based on betting action. A line moving from -6.5 to -8 suggests sharp professional money backing the favourite. Following line movements is a legitimate research tool for informed bettors.
**ATS records:** Against-the-spread records (how often a team covers the spread) are widely tracked by analytics sites. Teams with consistent ATS trends — particularly in specific game situations (home underdogs, division games, following a blowout) — can be useful angles.
Sports spread betting: buying and selling
UK-style sports spread betting is operated by specialist firms (Spreadex, Sporting Index) and differs fundamentally from fixed-odds betting:
**The spread:** Every market has a buy (higher) and sell (lower) price. Example: total goals spread 2.6 - 2.8. You 'buy' if you think goals will exceed 2.8; you 'sell' if you think goals will be under 2.6. The 0.2-point gap is the provider's margin.
**Variable profit/loss:** Unlike fixed-odds where you know your maximum return upfront, spread betting payouts scale with outcome. If you buy total goals at 2.8 for £50/point and the game ends 4-1 (5 goals), you win (5 - 2.8) × £50 = £110. If it ends 0-0 (0 goals), you lose (2.8 - 0) × £50 = £140.
**Stop losses:** Essential risk management in spread betting. Setting a stop loss limits your maximum loss on a position. Without stop losses, a single bet can lose multiples of your original stake. Most spread betting platforms include stop-loss functionality.
**Use cases for sports spread betting:** - Higher-conviction bets where you want returns to scale with margin (e.g. backing a heavy favourite to win comfortably) - Hedging a fixed-odds position mid-event - Markets not available in fixed-odds format (shirt numbers, first throw-in)
**Risks:** Spread betting losses can exceed your stake. This format is not suitable for casual bettors or those without clear risk management. Understand the full loss exposure before placing any spread bet.
Spread betting vs fixed-odds: which is better?
The choice between spread betting and fixed-odds betting depends on your betting style, risk tolerance, and the specific market:
**Fixed-odds advantages:** - Known maximum loss (your stake) - Simpler to understand and manage - Available from hundreds of bookmakers globally - No risk of losing more than you stake - Better for bankroll management strategies like Kelly Criterion
**Sports spread betting advantages:** - Higher returns for correct high-conviction bets (returns scale with margin) - Unique markets not available in fixed-odds format - Ability to sell (bet against) any outcome without needing a specific market - Can be used to hedge fixed-odds bets
**US point spread (fixed-odds) advantages:** - Creates close betting markets even when one team is heavily favoured - Standard format for US sports — essential knowledge for NFL/NBA betting - Available at essentially all bookmakers offering US sports
**Recommendation for beginners:** Start with fixed-odds single bets and Asian handicap markets before considering variable spread betting. The risk management complexity of UK-style spread betting requires experience to execute safely.
For Asian handicap alternatives to US point spreads in football and basketball, see our Asian handicap guide. For odds conversion between formats, use our odds converter tool.