Potential Profit
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Cheltenham Festival 2018 Flash Odds – William Hill

Posted by Matt (administrator) Matt
Start Time: 13/03/2018 12:00

After days of build up, the Cheltenham Festival 2018 finally gets underway this afternoon and if their recent boosts are anything to go by, you don’t want to miss these William Hill flash odds! William Hill will be giving us four Flash Odds boosts each day of the Festival between 12:00 and 13:00! Translated into matched betting terms, this gives us an overall potential profit of £50.00+ and here’s how…

Banner showing the Cheltenham Festival 2018 Flash Odds promotion from William Hill

Flash Odds Boosts:

William Hill will be running four Flash Odds boosts between 12:00 and 13:00 each day, with each boost being available for 15 minutes. The maximum stake for each boost is £10.00.

If you’re unfamiliar with qualifying bets, please see my Qualifying Bet Strategy page for a walk-through guide on how it should be done.

We won’t know what the Flash Odds are until William Hill announce them, but I’ll use Footpad (14:10 Cheltenham) in the following example to give you an idea of how these boosts should be done.

I like to place my exchange lay bets with Betfair as they have great liquidity in the run up to races and the site is really easy to use.

We can calculate our lay stakes using my matched betting calculator…

Select bet type

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 £25.91.

Don’t forget, you can use the slider to adjust your lay stake and your profit figures if you so wish.

William Hill logo

Place £20.00 on Footpad @ 2.50 = Potential profit of £30.00

Betfair logo

Lay £25.91 on Footpad @ 1.98 = Potential liability of £25.39

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

Footpad wins + £30.00 – £25.39 = £4.61 profit
Footpad doesn't win - £20.00 + £24.61 (£25.91 minus 5% commission) = £4.61 profit

So, regardless of the outcome, we’ll make a guaranteed profit of £4.61 on this William Hill Flash Odds boost.

I’ll update the following table throughout the week with details of each boost and the profit available…

Time Boost Lay Odds Profit
12:00 Tuesday 5/1 on Petit Mouchoir to win the 14:10 5.40 £0.92
12:15 Tuesday 14/1 on Gold Present to win the 14:50 n/a £0.00
12:30 Tuesday 5/2 on Faugheen to win the 15:30 (w/o Buveur D'Air) n/a £0.00
12:45 Tuesday 12/1 on No Comment to win the 16:50 n/a £0.00
12:00 Wednesday 4/1 on Cause Of Causes to win the 16:10 n/a £0.00
12:15 Wednesday 10/1 Al Boum Photo to win the 14:10 9.20 £1.41
12:30 Wednesday 5/1 on Douvan to win the 15:30 n/a £0.00
12:45 Wednesday 7/1 on Blackbow to win the 17:30 7.20 £0.63
12:00 Thursday 4/1 on Invitation Only to win the 13:30 n/a £0.00
12:15 Thursday 10/1 on Movewiththetimes to win the 16:10 n/a £0.00
12:30 Thursday 10/1 on Supasundae to win the 15:30 10.00 £0.50
12:45 Thursday Evens on Un De Sceaux to win the 14:50 (£20.00 max.) 1.80 £1.71
12:00 Friday 8/1 on Redicean to win the 13:30 8.20 £0.48
12:15 Friday 7/1 on Our Duke to win the 15:30 7.20 £0.63
12:30 Friday 11/2 on Santini to win the 14:50 by over 1 length n/a £0.00
12:45 Friday 10/1 on Wonderful Charm to win the 16:10 n/a £0.00

* The odds were a lot more conservative than expected, resulting in an overall profit of £6.28 on this William Hill Flash Odds offer. *

Terms & Conditions:

  • Available from noon every day of the Cheltenham Festival (Tuesday 13th – Friday 16th March) between 12:00-13:00.
  • Each market (four in total) will be available for 15 minutes only.
  • Stake limits apply
  • Singles only
  • Flash Odds bets do not qualify for race streaming, High 5, 2 Clear, Bet Boost, Best Odds Guaranteed or any other promotion.


  1. Sam

    The daily flash odds are a nice one to underlay during a normal week too for a potential lunchtime profit boost!

    1. Matt

      Yes some have been worth underlaying Sam for a risk-free shot at a nice profit. Unfortunately there haven’t been any decent guaranteed profits to be had as yet.

  2. Papillon

    These never seem to win….. is anyone else simply laying them?

    1. Longodds

      @Papillon My mouse finger doesn’t move for anything less than a quid !

      1. Papillon

        All went down today! Keep em coming mr Hill

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