The Arizona Diamondbacks are eager to forget their frustrating National League-worst 8-16 July and get rolling again in August. A little momentum from the series opener with San Francisco might help. Ketel Marte hit a tiebreaking double to the warning track in right-center with none out in the 11th inning and the D-backs denied the Giants a third straight walk-off win with a 4-3 victory Monday night.