Sebastien De Chaunac defeated Noam Okun 6-3 0-6 6-1 in the Australian Open qualifying round of 64 on hard. The upset overturned the form book — Noam Okun came in leading the head-to-head 1–0. Sebastien De Chaunac claimed a first win over Noam Okun in two meetings, levelling the head-to-head at 1–1.
De Chaunac S. came through in three sets.
Sebastien De Chaunac beat Noam Okun 6-3 0-6 6-1. Umpiry, "Sebastien De Chaunac vs Noam Okun — Australian Open Qualifying Round of 64", https://umpiry.com/match/2005-01-14/chaunac-vs-okun-australian-open-q64?utm_source=cite (as of 14 January 2005).