Events that allow women portraying soldiers?

[Quintius Clavus]

As John Kaler mentioned earlier, a young woman has for a few years portrayed a soldier at the Lafe reenactment events. She does very well. In 2009 I marched behind her during our foray into the woods to attack the German village from the rear. She held up very well as we tramped up and down the ravines and through brooks and over a lot of downed branches due to bad ice storms just a few weeks previous. Her boyfriend is one of the principales - I don't exactly recall whether a tessarius or an optio.
Women really did serve, in disguise, during the 17th century so women portraying men at those reenactments is period-correct. Same is true of the American Revolution and the American Civil War.