St Helens go marching on at the top of Super League with a thoroughly convincing success against bitter rivals Wigan.
Meanwhile, the Sire De Grugy team has had to overcome a recent injury scare and then a comeback race at Newbury in which the horse and his jockey Jamie Moore parted company, before an admittedly convincing success.
Convincing success stories are harder to come by.
Unfortunately, a high percentage of the patients experience relapse of their disease, and treatment for recurrent disease has not achieved convincing success rates.
Their success in convincing successive governments to adopt low-tax, export-led development policies helped to turn Taiwan into an economic powerhouse.
Many economists the world over hailed India as a success, convincing Indian leaders that they had nothing to learn from free-marketeers in the West.
Convincing clinical success of therapeutic depletion brought the B cells back into the research focus of RA pathogenesis.
And Voeckler revealed that Contador's approach was at least a partial success, convincing him to ride unnecessarily aggressively in the closing stages.
