This work presents the first large-scale photometric variability survey of the intermediate age ( \sim 200 Myr ) open cluster M11 .
Thirteen nights of data over two observing seasons were analyzed ( using crowded field and ensemble photometry techniques ) to obtain high relative precision photometry .
In this study we focus on the detection of candidate member variable stars for follow-up studies .
A total of 39 variable stars were detected and can be categorized as follows : 1 irregular ( probably pulsating ) variable , 6 \delta Scuti variables , 14 detached eclipsing binary systems , 17 W UMa variables , and 1 unidentified/candidate variable .
While previous proper motion studies allow for cluster membership determination for the brightest stars , we find that membership determination is significantly hampered below V = 15 ,R = 15.5 by the large population of field stars overlapping the cluster MS. Of the brightest detected variables that have a high likelihood of cluster membership , we find five systems where further work could help constrain theoretical stellar models , including one potential W UMa member of this young cluster .