South Africa is the only nation with more than two men in the top 10 in the overall standings of the lucrative eight-leg series.
The next event is in Singapore today and tomorrow, followed by the final two legs in Tokyo and Beijing over the next 10 days.
“All three guys are fit and healthy. There are no injuries,” Hill said after the team arrived in Singapore at the weekend.
Olympic gold medallist Chad le Clos, right, extended his lead to 92 points over second-placed Russian Vladimir Morozov at the last three legs in Moscow, Dubai and Doha in October.
Veteran sprinter Roland Schoeman dropped two places to sixth, and rising star Myles Brown rocketed 11 positions up the standings to settle in seventh spot overall.
Hill would not elaborate on Brown’s chances of climbing further up the table, but hinted at a possible world record by Le Clos.
Having set a new 200m butterfly short course world mark of 1:49.04 in Eindhoven in August, Le Clos said after the Doha leg he hoped to improve on that effort before the end of the season.
He narrowly missed out on the record, by 0.03 seconds, in Dubai last month.
“Myles is swimming really well. He has established himself as a world-class swimmer,” Hill said.
“And we will have to wait and see if Chad can break a world record.”