Facundo Mena and Gustavo Heide meet in the semifinal at Porto 2 on Saturday. Gustavo Heide is rolling — 3 straight wins, 6 of 10 in recent play. Facundo Mena is rolling — 3 straight wins, 7 of 10 in recent play.

There's a wide gap in our ratings on clay, and our number follows from it. Mena comes in off a compressed schedule; Heide comes in off a compressed schedule. Expect resistance, but the match-level math tilts clearly toward Heide.