I was looking for an odd, a"safe" odd where on long term trading I would hit a profit, backing a horse who would first reach specific odd. Statisticly, for this period, the most safe odd would be 1,19. Meaning, if you would bet everytime, on every race two pounds, you would earn 399,04 pounds. You would win 5608 races ( 2131 pounds) and loosing 866 races (1732 pounds). Warning 1: I assumed you would loose everytime, second or third or etc. horse would go bellow this odd, which in reallity would not happen. Warning 2: You would need to be matched on every race at this specific odd, which in reallity would not happen as well

So called safe odds are from 1,03 to 1,29. All other odds would in this period bring negative result, considering above method.
I used this method in practice as well. If you were trading in last weeks and were loosing or winning on 1,19.... it was me

However I found out, it is not worth it. You just don't get matched.

Does someone else have any statistical fact?