Vivian Segnini defeated Lucia Jara Lozano 6-0 6-3 in the Tucuman 10K round of 16 on clay. The upset overturned the form book — Lucia Jara Lozano came in leading the head-to-head 1–0. Vivian Segnini claimed a first win over Lucia Jara Lozano in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-08-27 | Santa Cruz 10K | R16 | clay | Lucia Jara Lozano | 7-5 6-2 |