Carole Monnet defeated Solana Sierra 6-2 6-4 in the Florianopolis round of 16 on hard. The upset overturned the form book — Solana Sierra came in ranked #93, but Carole Monnet had been the form player, winning 3 of their last 8 on hard.
Monnet C. took it in straight sets.
Monnet C. and Sierra S. faced 3 of the same opponents in the last 12 months. Monnet C. went 1–2 (33%) against them, Sierra S. 1–2 (33%). Results against comparable opponents are close (1 : 1 better-results split).
Only 3 common opponents — small sample, treat as indicative.
Carole Monnet beat Solana Sierra 6-2 6-4. Umpiry, "Carole Monnet vs Solana Sierra — Florianopolis Round of 16", https://umpiry.com/match/2025-10-22/monnet-vs-sierra-florianopolis-r16?utm_source=cite (as of 22 October 2025).