Central Districts all-rounder Marty Kain dropped a catch on the embankment at Saxton Oval, Nelson, during the match between Bangladesh and Scotland.

A first-class cricketer who took a spectacular one-handed catch in the Ford Trophy final last month has let a share in a potential $1 million slip through his fingers at a Cricket World Cup match in Nelson.

Central Stags all-rounder Marty Kain was in the crowd for the match between Bangladesh and Scotland when he dropped a catch on the embankment at Saxton Oval.

Kain was wearing an orange Tui t-shirt and taking part in the Catch-a-Million competition. Had he taken the catch one-handed he would have secured himself a share in a potential $1 million.

Martin de Ruyter Central Districts all-rounder Marty Kain dropped a catch on the embankment at Saxton Oval, Nelson, during the match between Bangladesh and Scotland.

The ball was coming straight for him off a Scotland batsman's six.

But Kain, who has developed a reputation for having a safe pair of hands, couldn't hold onto it.

"I only got a touch on it, it just got big on me at the end," he said.

"I'm not used to really catching on hills and had eight opposition there. Probably not gonna get a better look at approximately $100,000, though."

His friend was more frank. "He f****d up," he said.

Following the fumble, Andrew Dunford posted on Twitter: "Marty Kain drops catch in crowd. If first-class cricketers can't take them, what hope for the rest of us?"

Kain took an impressive one-handed catch for the Central Stags in the Ford Trophy final against the Auckland Aces last month.

The Stags went on to win the final.

"It's a little bit easier when you're on the field, not on a hill." Kain said.

He admitted that he probably should have taken the catch in the crowd.

"No excuses."

The Catch-a-Million prize pool currently sits at $250,000 and will gradually increase to a maximum $1 million if the Black Caps win the World Cup.