Former college player, now tennis trader, making pre-assessment of matches played on the pro tour. How I do this is by weighing up how the players strengths and weaknesses match-up against one another.
With this I also incooperate factors such as preparation for event, state of fitness/health, morale/momentum, humidity/wind etc. All these factors enable me to arrive at a gut feeling summary for who I believe will walk away with the W against their name.
Tennis is the most psychological sport in the world alongside Golf and Boxing, so while analysing the match-up is prevalent, its importance should also be weighed in accordingly with how capable the player(s) are at performing on the crux moments.