restaurants are able to hold reservations back.
after open table showed the place full, i called one in alexandria recently and asked why no 6:30s available for the next month.
"we hold them for walk ins"
i told them i was the gerald and requested a table for that night(a tuesday, no less). only one other table was taken at 6:30. since the party of 4 ordered 4 bottles of wine, we requested and received a table for 6 or 8.
lot of people showed up at 7-730.
the open table selection in the dc area is about 50% of all, max.