MINI BETTING SYSTEM #5: Winning With Stealthy Under the Radar Trainers

(Last Updated On: December 29, 2020)

Welcome to the latest instalment in Race Advisor’s mini betting series.

Every month we’re looking at a mini betting system which focus on a niche angle to find profits.

Over time these can build up into a portfolio of betting angles which you can use as part of your betting.

All form reading techniques can be applied to the contenders found by these betting systems. They can be used as a shortlisting technique.

This month’s mini betting system looks at trainers who specialise on Saturday racing.

You can see all the past mini betting systems here.

Before proceeding, let’s quickly outline a few things to consider.

Stay Recent

Although it is excellent if a system turns a profit for 5+ years, there’s no question that even three consecutive profitable years is noteworthy.

In horse racing, a system can lose its edge because the conditions change, or the bookmakers get wind of it, and the value is lost.

Your system could have the same percentage of winners but ceases to be profitable because the odds no longer represent value.

Some horse racing experts, such as Nick Mordin, believe that many systems retain their edge for no more than three years.

Always Apply Logic

When analysing the filters, you apply, ask yourself if eliminating or retaining a factor is logical.

For example, if you find that an angle is profitable in all races except Class 4 events, should you remove all Class 4 runs from consideration?

Logic dictates that you shouldn’t because it is difficult to figure out why only Class 4 races lead to a loss.

Focus on Sample Size

Instead of zoning in on ROI all the time, look at sample size first. Believe it or not, it is better to have 300 bets at an ROI of 8% than 70 with an ROI of 16%. The former is far likelier to provide a long-term edge.

Today, I am looking at trainers that provide a positive A/E on bets, and also have a reasonable win percentage. The following includes data from UK races from the beginning of 2018.

The Mini Betting System Rules

  1. Only focus on these three trainers: Tristan Davidson, Ruth Jefferson, and Jeremy Scott.
  2. Only choose horses with maximum SP odds of 19.00.
  3. Select horses in National Hunt Hurdle races only.

That’s it!

The Logic

I specifically chose these trainers because of a combination of high A/E and a reasonable winning percentage.

The A/E value is a representation of whether or not you get an ‘edge.’ An A/E of 1.00 indicates that you neither have an edge, nor are you at a disadvantage.

Once you go above 1.00, you begin to get an edge on the market. At this point, you are in value betting territory. In general, you can expect a system or angle with a long-term A/E of over 1.00 to turn a profit. The combination of these three trainers provides an edge of 27% since the start of 2018. Jefferson has the lowest A/E figure of 1.14, Scott’s is 1.24, while Davidson offers 1.61.

In horse racing, you will find trainers, jockeys, and various systems with win percentages in the 10-15% range. You may profit eventually, but the lower the win rate, the longer the expected losing streaks. All three trainers have a win rate of over 21%.

The Results

Since 2018, the above criteria would have yielded the following results:

SelectionsWinsStrike RateP/L Units (BF)ROI (BF)A/E

As you can see, you get a win rate of almost 24% and an A/E of 1.27. The one downside is the relative lack of bets. However, it is a microsystem that you can add to others to create a nice ‘portfolio.’ Perhaps add it to a lower risk system with a higher strike rate? Michael would generally recommend something like place betting.

Here is a year by year breakdown:

YearSelectionsWinsStrike RateP/L Units (BF)ROI (BF)A/E

The pleasing thing is that the A/E figure remains high for these three trainers. As long as this remains the case, we will hopefully continue to see profits.

In Summary

By choosing just three trainers in UK National Hunt Hurdles races at odds of 19.00 or less, you could generate a profit of almost 34%. It seems as if the bookmakers continue to overprice the runners of these trainers. It is anyone’s guess how long this scenario lasts. Given the fact that they aren’t especially famous or prolific trainers, they may fly under the radar for a while yet.

If you’d like to get the horses for every mini-system in Patrick’s Portfolio found and sent to you each day, you can register at

Patrick Lynch

Patrick graduated from the National University of Ireland, Galway with an MA in Literature and Publishing but decided he would rather have the freedom of a freelance writer than be stuck in a publishing house all day. He has enjoyed this freedom since 2009 and has written thousands of articles on a variety of topics but sports betting is his passion. While his specialty is finding mismatches in obscure football leagues, he also likes to use his research skills to provide punters with detailed winning strategies in horse racing. You can check out his personal blog on or Twitter @pl1982 where he writes content to help small businesses achieve success.


  1. For system no 5 is it for Saturday only runners or all NH runners?

    There is already a Saturday only handicap system



  2. Please can you clarify whether the prices you quote for eligibility of bets for all Systems are Betfair prices or regular bookie prices ?

    1. Hi Rob,

      These are SP prices, as that is what many databases tend to include (along with BFSP). It is always challenging to include systems with odds involved, but in most cases, it is necessary to cut the odds a bit to reduce the chances of one or two huge priced wins skewing the results. It is tricky to determine whether to include horses close to a cut off point in terms of odds, but one should always follow Michael’s Five Minute Form Reading rule to eliminate contenders.

      No matter how good a system seems on paper, spending extra time analysing contenders, rather than blindly backing, will always prove a better option. Of course, not everyone has this kind of time, which is what bookies love!

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