Jim Grabb defeated Andrei Cherkasov 6-3 7-6 0-6 4-6 6-3 in the Australian Open round of 128 on hard. The upset overturned the form book — Andrei Cherkasov came in leading the head-to-head 1–0, defending last year's round of 64. Jim Grabb claimed a first win over Andrei Cherkasov in two meetings, narrowing the head-to-head to 1–1.
Grabb J. came through in five sets.
Grabb J. and Cherkasov A. faced 1 of the same opponent in the last 12 months. Grabb J. went 0–1 (0%) against them, Cherkasov A. 0–1 (0%).
Only 1 common opponent — too few for any conclusion. Shown without assessment.