Rain has forced the cancellation of Round 10 of QSS World Series Sprintcars at Solo Hobart Speedway before a wheel was even turned.

A downpour just after 4pm dissolved any hope of the series return to the venue for the first time since 2010, and continued showers throughout the afternoon sealed the decision.

As a result, the series has encountered a tightening of the points chase, with only four rounds remaining in Western Australia to decide the 2017-18 Champion on February 25 at the Perth Motorplex.

The team haulers will cross the Bass Strait Sunday morning before heading across the Nullarbor for round 11 at Albany next Friday and onto Bunbury the next night.