AMA Pro Racing has announced Virginia International Raceway’s cancellation of the Suzuki White Lightening Nationals,round eight on the AMA Pro Road Racing season calendar.

Despite AMA Pro Racing’s efforts to preserve the originally scheduled 12-14 August event, VIR staff notified AMA Pro Racing late Monday of its final decision not to host or promote the race weekend.

“AMA Pro Racing has made VIR a part of its season calendar for the past decade,” said AMA Pro Racing COO and managing member David Atlas.

“I am gravely disappointed by the impact this will have on our paddock, fans, and other series participants. I assure all of those involved parties that a significant effort was made to negotiate an arrangement that would have preserved the event.”

AMA Pro Racing will refund all event-specific fees paid to AMA Pro Racing by series participants.

The AMA Pro Road Racing series next heads to Monterey, California’s Mazda Raceway Laguna Seca for round seven on the calendar on 22-24 July, where the event will run as part of the Red Bull U.S. Grand Prix MotoGP World Championship weekend.