The riders started at the dam and immediately began climbing before continuing an undulating course along Kingsbury Drive towards the lookout. They then turned around and found a gentle tailwind which made the return leg challenging.
Shayne Dimmer was the fastest rider, completing the 25km course in just more than 40 minutes on a time- trial bike.
Two seconds slower was visiting English hill climber Lewis Keightley on a regular road bike.
Third was Colin Rose, who took the honours on age standard time. Peter Carlin was second and Conor Leahy third on age standard time.
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READ NOWTime trials continue this Wednesday at 4.30pm at Hopelands.
The criterium season starts on November 22 in Pinjarra.
For more information about the new season or the full results, visit pdcc.asn.au