Saturday's Buenos Aires 3 semifinal pits Facundo Mena against Pedro Boscardin Dias on clay. Facundo Mena has won 8 in a row and 9 of the last 10 overall. Pedro Boscardin Dias has won 3 in a row and 3 of the last 10 overall.
The serve is where this match separates: Mena has been winning 71.8% of first-serve points to Dias's 65.3%, and on clay that gap compounds fast. Mena comes in off a compressed schedule; Dias comes in off a compressed schedule. Expect resistance, but the match-level math tilts clearly toward Mena.