adminfinals of the grasscourt tournament with a straight sets 6-4, 6-2 win over Lisa Raymond of the United States and Briton Laura Robson in 64 minutes.
They secured the sole break in the first set.
They then broke the serve of their opponents twice in the second set.
The Zimbabwe-New Zealand combination continued a fine run which has seen them reach two finals in the last month.
They have also managed to advance to the quarter-finals of the French Open.
Another run in Birmingham would put them in good stead ahead of Wimbledon.
Black has already claimed three doubles titles at Wimbledon.
They will face second seeds Liezel Huber of the United States and Taipei’s Chan Hao-ching in the next round.
Erakovic advanced in the singles on Tuesday.
She was scheduled to meet the tournament’s second seed, Ekaterina Makarova, last night.
Makarova, who received a first-round bye, won the only previous match between the pair.
That was at the same Birmingham tournament last year, emerging victorious from a two-hour third-round match.
Online Reporter