She is one of the few Japanese women nationals to race internationally at a high level.

In the 2006 series, she finished in 17th and last position in the Championship Class, with 4 points.

Ihara joined the Gulf Racing Middle East to compete at the FIA World Endurance Championship in the LMP2 class with Jean-Denis Délétraz and Fabien Giroix as codrivers.

The driver won the Fuji round of the 2014 Asian Le Mans Series for Oak Racing, together with Ho-Pin Tung and David Cheng.

* Season still in progress This biographical article related to Japanese auto racing is a stub.