Grand National Festival 2021 Offer – Unibet

Potential Profit
Actual Profit

The Grand National Festival 2021 gets underway at Aintree on Thursday and you don’t want to miss this Unibet ’15 to Go’ offer! Simply bet on selected ITV races in the 15 minutes before the scheduled start time and if we back the winner, Unibet will match our stake with a free bet, up to £20.00. Translated into matched betting terms, this gives us a potential profit of £25.00+ and here’s how…

Key terms

  • Minimum stake of £5.00.
  • Qualifying bets must be placed on the selected ITV races in the 15 minutes before the scheduled start time.
  • Qualifying bets must be placed at odds of 2.00 (evens) or greater.
  • To be eligible, we must click the ’15 to Go’ button that appears on our betslip after entering our stake.
  • If our selected horse wins, Unibet will match our stake as a free bet, up to £20.00.

Qualifying bets

The Unibet ’15 to Go’ promotion is very similar to the Bet365 4/1 offer.

If you’d like more information about qualifying bets and how they work, please see my qualifying bets guide.

This offer is available on the following 10 ITV races…

Thursday 8th April 2021
14:20, 14:50, 15:25, 16:05 and 16:40 Aintree

Friday 9th April 2021
14:20, 14:50, 15:25, 16:05 and 16:40 Aintree

It’s entirely up to you which horses you place your qualifying bets on, though we won’t know what odds are available until 15 minutes before the off.

Monmiral is favourite to win the 14:20 Aintree on Thursday at back odds of 2.00 (evens). I’ll use lay odds of 2.14 to illustrate how this offer works and I’ll update the table at the bottom of the post with some genuine selections at the end of each day.

Either exchange works for this offer

Option 1:

We know that if our horse wins, we’ll be able to convert our £20.00 free bet into 80% cash. We can therefore add 0.80 to the back odds to get our effective odds…

2.00 + 0.80 = 2.80

Using my Matched Betting Calculator, we simply enter 2.80 as our back odds instead of 2.00 and lay the amount shown. Overlaying like this is fine, but the guaranteed profits are likely to be small.

Option 2:

Our second option is to lay our bets as normal and hope some of our horses win for bigger profits.

We can calculate our lay stake using my Matched Betting Calculator

Back Bet (Bookie)


Lay Bet (Betting Exchange)


Min £
Max £
Lay stake required: £
If back (bookie) bet wins
= £
If lay (exchange) bet wins
= £
Total profit: £

Optimal Underlay

Lay stake required: £
Exchange liability: £

If back (bookie) bet wins: £
If lay (exchange) bet wins: £

Optimal Overlay

Lay stake required: £
Exchange liability: £

If back (bookie) bet wins: £
If lay (exchange) bet wins: £

As you can see, the calculator tells us that our lay stake should be £18.87…

Unibet logo

Place £20.00 on Monmiral @ 2.00 = Potential profit of £20.00

Betfair logo

Lay £18.87 on Monmiral @ 2.14 = Potential liability of £21.51


Let’s have a look at our potential profit/loss for the possible outcomes…

OutcomeUnibetBetfairFree BetProfit/Loss
Monmiral wins+ £20.00– £21.51+ £16.00£14.49 profit
Monmiral loses– £20.00+ £18.49£1.51 loss

So, we’ll make a nice profit of £14.49 if Monmiral wins, otherwise we’ll lose £1.51. Risking £1.51 to make a potential profit of £14.49 gives us effective odds of 10.60. So, given that Monmiral is odds of just 2.00 (evens) to win the race, this is a profitable offer in the long run.

We won’t find a suitable selection for every race, nor should we be aiming to bet on every race. It’s best to be selective, but with 10 races to go at, there’s an overall potential profit of £25.00+ up for grabs on this Unibet ’15 to Go’ offer!

If eligible, free bets will be credited within 2 hours of the weigh-in and will be valid on horse racing for 7 days. Free bet stakes are not included in any returns.

If you’re unsure how to convert your £20.00 free bets into £16.00 cash (80%), please see my free bets guide for a walkthrough of how it should be done.

I’ll update the following table with some genuine selections after the races…

RaceSelectionBack OddsLay OddsProfit/Loss
14:20 ThursdayAdagio2.6252.78£1.37 loss
14:50 ThursdayClan Des Obeaux3.754.00£14.48 profit
16:05 ThursdayBillaway3.003.30£2.08 loss
14:20 FridayDusart3.503.80£1.86 loss
14:50 FridayChantry House2.3752.52£14.62 profit
15:25 FridayFakir D’oudairies3.1253.25£14.97 profit
16:40 FridayBravemansgame2.752.92£1.41 loss

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Matt Kirman - Matched Betting Blogger

Matt KirmanMatched Betting Blogger

Since 2014, I’ve blogged over £50,000 worth of profit, and made it my mission to make matched betting accessible to everyone.