Hi Sergio
This is a bit like your other trigger question. This time, if I understand right, you want to lay the favorite in round 4 if in the previous 10 games the favorite in round 4 has gone on to win (or tie).
Again this can be done with user variables for each hand setting a value to the one that is favorite (use rank = 1) in round 4, clear al these in round 1.
Then check if the hand that is the winner has that value so increment your wins counter.
If you only place one lay bet after 10 wins then you limit your loss recovery but I did see win runs of 17 in a quick test but they were of low odds so not too much to recover.
I tried a quick run using Turbo July 2016, only 26 days of data, with a £1 lay bet on 8 wins or more with next bet full loss recovery, in over 18,000 games there were only 86 wins 244 losses with a max loss recovey of £40.
Might be something in this but a very slow earner, any larger stake could quicky mean a full bank loss if you hit a long run of high odd losers, which knowing these games is quite likely.