Blinkova broke for 3-2 and Alexandrova levelled for 5-5, but Blinkova prevailed in a tiebreak after 60 minutes of relentless baseline exchanges.
Alexandrova broke for 1-0 and held for 2-0 saving a break point, then broke again for 4-3 before holding for 6-4 to level the match.
Alexandrova broke for 1-0, 2-1 and 5-4, then saved all four break points in a deuce hold for 7-5 to clinch the match despite Blinkova's resilience.