Okonkwo d. Robertson

Okonkwo beat Robertson 6-4, 7-6(5) in the first round at the M15 Boca Raton. Okonkwo won 79 of 147 points (54%). Okonkwo hit 9 aces to 0 and won 74% of points behind the first serve (32/43) against 63% for Robertson. Okonkwo converted 4 of 10 break points and saved 1 of 4 faced; Robertson converted 3 of 4. Robertson double-faulted 10 times. The match was played on clay in United States.