Best Betting Sites UK / Glossary / Underdog

Underdog

Dave Kuzio

TwitterLinkedIn

Content Manager

Publish Date: 08/11/2024

Fact checked by: James Leeland

The underdog is a team or player who the bookmaker feels has less of a chance of winning than its opponent.

There is usually a favourite and underdog in sports betting. The underdog is the team or individual who is not expected to win. The payout will be bigger if you back the underdog and win.

More Glossary Entries

1X2 Acca Insurance Accumulator Against The Spread American Odds Ante Post Arbitrage Asian Handicap Back Back Door Cover Bad Beat Banker Bar Bet Bet Builder Betting Exchange Betting Limits Betting Slip Bookmaker Brace BTTS Bumper Cash Out Chalk Clean Sheet Closing Line Commission Correct Score Betting Decimal Odds Double Bet Draw No Bet Dutching Each Way Edge eSports European Handicap Even Money Favourites Fixed Odds Betting Flat Racing Fractional Odds Free Bet Full Time Result Futures Betting Half Time Result Hat Trick Hedging Heinz IBAS Implied Probability In-Play Betting Joint Favourites Lay Lengthen Long Shot Lucky 15 Lucky 31 Lucky 63 Martingale Maximum Bet Middle Minimum Bet Moneyline National Hunt No Deposit Free Bet Non Runner Odds Off The Board Outright Betting Outsider Overround Palpable Error Parlay Patent Pick ‘Em Place Betting Placepot Price Prop Bet Punter Request A Bet Return Sharp Spread Betting Square Stake Suspended Odds Terms And Conditions Tipster To Place To Win To Nil Treble Void Bets Yankee

Top Betting Sites

Top Betting Bonuses

BetMGM UK

BetMGM UK Review

4.8/5

Betnero

Betnero Review

4.7/5

Betfred

Betfred Review

4.7/5

Star Sports

Star Sports Review

4.6/5

Lottoland

Lottoland Review

4.6/5

BetMGM UK Bonus

Bet £10 Get £40

18+. T&Cs apply.

4.8/5

New customers: Deposit £10+ within 7 days and place a sports bet. Get 4 x £10 Free Bets (2 x £10 Bet Builders & 2 x £10 Sports Bet). Valid 7 days. Min odds apply. Excludes virtual sports, esports and non-UK/IE horse racing. 18+. T&Cs apply. 18+. T&Cs Apply. GambleAware.org.

Betnero Bonus

Bet £10 Get £10 Free Bet

T&Cs apply

4.7/5

Play responsibly | 1st deposit only | Min deposit €10 | Qualifying bet: min €10, on any acca or bet builder (2+ selections) with min odds 6/4 (2/5) on selected sports | €10 free bet: 2+ leg acca or bet builder (2+ selections), min odds 6/4.

Betfred Bonus

Check offer on site!

T&Cs apply, 18+

4.7/5

Star Sports Bonus

Bet £20 get £10 in free bets

T&Cs apply

4.6/5

18+ New customers only. Bet £20 (or more) EVS (2.0) or greater Get 2 x £5 Free Bets. 1 x £5 Free Bet paid automatically & following £5 Free Bet after 24hrs. Min Free Bet odds 4/1 (5.0) on accumulators Trebles & upwards. Expires after 24hrs. Full T&Cs apply. GambleAware.org

Lottoland Bonus

Bet £10, Get a £10 Free bet

T&Cs apply

4.6/5

18+. New sports customers only. Deposit £10+. Opt in, claim & bet £10+ on Any ACCA or Bet Builder (2+ selections) (min odds 3/1 (4.00)). Get a £10 Acca or Bet Builder (2+ selections). Offer ongoing but must be completed within 7 days of claim. Free Bet expires 7 days from claim. No cashout. Full T&Cs apply. gambleaware.org.

Latest News

Horse Racing Betting Tips - ITV Racing Picks - A Lucky 15 for Saturday 18 Apr...

It’s Saturday already, which means it’s time for ...

EFL LEAGUE TWO BETTING TIPS: PREDICTIONS & BEST BETS 18TH APRIL – 2026

Louie Truman has his League Two betting predictions, along ...

Horse Racing Betting Tips - Saturday 18 April 2026 - Ayr - Scottish Grand Nat...

We’re back at Ayr for the second day ...

PREMIER LEAGUE BETTING TIPS AND BONUSES 18th - 20th APRIL 2026

Ten Premier League fixtures take place this weekend ...

Judge Dismisses Richard Desmond’s Lawsuit Over UK National Lottery

A High Court judge has dismissed media mogul ...

Betting Tips