Just three entrants in next week's national swimming championships have previously gone under the Olympic qualifying standard for this year's Rio Games, raising the prospect of Swimming New Zealand sending its smallest team to an Olympics in 24 years.
The five-day meet at the National Aquatic Centre on Auckland's North Shore will double as Olympic trials, with competitors required to go under the Fina 'A' qualifying time during the event to earn selection for Rio.
But the only swimmers who have entry times faster than the mark set by the international governing body are Lauren Boyle, who captured two silver medals at last year's world championships, Wellington freestyler Emma Robinson, and US-based breaststroker Glenn Snyders.
Other aspiring Olympians will have to do significant personal bests, and in some cases set national records, if they are to make the grade for the Rio Games.
The New Zealand Open was originally set down as the only meet in which the athletes can qualify, but Swimming NZ last month amended its criteria for nomination, adding the Canadian Olympic trials as a selection event. The move was made to accommodate Kiwi swimmers based in the US College system, with the NZ Open clashing with the NCAA championships in the United States.