Mara Jade Skywalker vs. ROTS Obi Wan Kenobi

Mara Jade as of Sacrifice

Battle takes place on neutral ground

Soresu can only hold out so long against a dirty trickster. Mara. It'll take her a damn long time on a featureless plane. Less time in an environment that has stuff in it.

Mara's TK and unorthodoxy probably gives her some rounds but she loses overall.

Mara Jade. But good fight though.