Osterley had a stroll in the park against Calthorpe in the Middlesex Championship top flight.
Having bowled out sorry Calthorpe for just 54 in 28 overs, Osterley needed just seven overs, and two wickets, to reach their target before packing up nice and early.
Coupled with Edmonton being held to a surprise draw by Birkbeck College, second-placed Osterley closed the gap on the leaders to 11 points.
However, Indian Gymkhana are just two points behind them having had almost as easy a victory over Southall. Gymkhana bowled out Southall for 109 in 43 overs before reaching the target in 23, for the loss of five wickets.