Tennis is very competitive game, and you can run many strategies by bots on tennis markets.
If you are able to assess a game and players then you are able to enter with your trades and be profitable. In my video tutorial I created a trading bot laying a player for 10 ticks profit.
I started my bot blindly on favored players before match started. From 6 matches, 2 matches had been turned at in-play and my trading bot successfully traded out for 10 ticks profit on those two matches.