Strategy 1
Back the Favourite
If you have an idea about who will win the match, or at least perform well
during the first set, you can simply back them at the start.
Using this method, you can take full advantage of the drop in their price,
once they break their opponent’s serve. I would generally expect a
player’s price to drop by half if they break serve. By that I mean if they
started the match at say, 1.32, I would expect their price after the break
to be approximately 1.16.
You then have the option of greening up after the break or wait until they
win the first set for a bigger profit.

Strategy 2
Wait for the break of serve.
If you’re not sure who will win the match you can wait until one of the
players breaks their opponents serve and then back them.
You can then wait for them to hold their own serve and green up or you
can wait until they win the first set for a slightly bigger profit.

Strategy 3
Lay the unbeatable favourite.
Many times you will see a favourite start at a price below 1.10 and even
1.02. I will often take these on and see what happens in the first set.
You can lay £1000 @ 1.02 and the risk is £20 - all you need is a break point
and they will go to 1.07 or 1.08, you then back for £1000 and you make
£60, just like that.
If he gets broken, he could go to 1.15 and then you have a great trade.
It is best to look at the big four like Murray, Djokovic, Federer, Nadal - and
now Wawrinka can be added to the mix.

We are not betting if he will win or lose. We are betting on whether his
price will rise during the match and most of the time, the answer will be
yes - at some point they will trade higher than their starting price.