Radwanska leads their previous meetings 6-2. Their last match was in October 2016. Radwanska won in straight sets on a hard court in Beijing. They have never played on clay.
Makarova doesn’t have a great record on clay but usually makes it
through her first match. She reached the quarter final of this tournament in 2015 and also made the 4th round of the French Open that year but those were her only real successes.
Radwanska doesn’t play a great deal on clay which surprises me as her game suits the surface well. I expect her to win this but wait for her to get broken before backing.