Maria Joao Koehler defeated Tammi Patterson 6-3 6-4 in the Australian Open qualifying round of 64 on hard. The result followed the form book — Maria Joao Koehler came in defending last year's round of 128.
Koehler M. took it in straight sets.
Koehler M. and Patterson T. faced 1 of the same opponent in the last 12 months. Koehler M. went 0–1 (0%) against them, Patterson T. 0–1 (0%).
Only 1 common opponent — too few for any conclusion. Shown without assessment.
Maria Joao Koehler beat Tammi Patterson 6-3 6-4. Umpiry, "Maria Joao Koehler vs Tammi Patterson — Australian Open Qualifying Round of 64", https://umpiry.com/match/2013-01-11/koehler-vs-patterson-australian-open-q64?utm_source=cite (as of 11 January 2013).