Betfair Exchange: Key Concepts You Must Know
Written by
Traderline Team
Betfair isn't only a bookmaker - it's also a betting exchange where you trade against other users, not the house. This fundamental difference unlocks better odds, more flexibility, and trading strategies impossible with traditional bookmakers.
Why Betfair Wins
- Peer-to-peer betting = 15% better odds (no bookmaker margin)
- Back AND lay = profit from any outcome
- Trade in-play = close positions anytime
- No betting limits for winners
- Full control over when to exit
What Makes Betfair Different?
Traditional Bookmakers: You bet against the house. They set odds with built-in profit margins (typically 10-15%).
Betfair Exchange: You bet against other users. Odds reflect real market demand and supply.
Result: Better odds, more flexibility, no account limits when you win.
Bookmaker: Liverpool to win at 1.80 (implied 55.6% probability)
Betfair: Liverpool to win at 2.00 (implied 50% probability)
Difference: 11% better value on Betfair for the same bet
Back and Lay: Your Two Weapons
Back = Buy (go long)
Lay = Sell (go short)
Just like stocks, you can profit from prices going up OR down.
Backing: Betting FOR an outcome (standard betting)
- Example: Back Liverpool at 2.00 = profit if they win
Laying: Betting AGAINST an outcome (exchange-only)
- Example: Lay Liverpool at 2.00 = profit if they lose OR draw
Why Betfair Beats Bookmakers
1. Superior Odds: No bookmaker margin means 10-20% better odds on average.
2. Complete Control:
- Trade in-play during the event
- Close positions anytime
- Lock in profits early
- Cut losses when needed
3. No Limits: Win consistently? Betfair won't limit your account. Traditional bookmakers will.
Understanding Liquidity
Liquidity = money available in the market to match your bets.
High-Liquidity Markets (Best for Beginners)
- Premier League football: £500K+ traded per match
- Major tennis tournaments: £100K+ per match
- Popular horse racing: £50K+ per race
Why these work: Stable odds, instant bet matching, predictable movements
Low-liquidity markets (lower leagues, niche sports) have:
- Wild odds swings
- Difficult bet matching
- Unpredictable movements
Stick to high-liquidity markets until experienced.
Once you're comfortable with these basics, you're ready to explore advanced strategies like scalping, swing trading, and hedging.
Continue Learning
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