Julia Kimmelmann defeated Laura Siegemund 6-4 2-6 6-4 in the Leimen 10K semi-final on hard. The upset overturned the form book — Laura Siegemund came in leading the head-to-head 2–1. That levelled the head-to-head at 2–2.
Kimmelmann J. came through in three sets.
Hard: Kimmelmann J. leads 2–1 · Clay: Siegemund L. leads 1–0
Julia Kimmelmann beat Laura Siegemund 6-4 2-6 6-4. Umpiry, "Julia Kimmelmann vs Laura Siegemund — Leimen 10K Semi-final", https://umpiry.com/match/2013-02-11/kimmelmann-vs-siegemund-leimen-10k-sf?utm_source=cite (as of 11 February 2013).