Swedish double Olympic pole vault champion Armand “Mondo” Duplantis increased his own world record again on Sunday, clearing 6.28 meters to the delight of the home crowd at the Stockholm Diamond League meet.

With victory in the event already guaranteed, Duplantis broke the world record for the 12th time as he sailed over the bar at the first attempt to improve on his 6.27m effort at Clermont-Ferrand in February.

The 25-year-old ripped off his shirt in celebration and raced down the track in front of jubilant spectators at the Olympic stadium built for the 1912 Games.

"It's a magical feeling, it's hard to explain," said Duplantis, who had not before broken the record in Sweden.

"I wanted this so bad. I wanted to do this in front of everybody here in Stockholm.”

"It felt like something special in the crowd today and I knew that everybody really wanted to see it too.”

"It'll be one of the greatest memories for me, I think, in my career."

On the other hand, Filipino Ernest John Obiena struggled anew.

After finishing dead last with a “No Mark” tag in the Oslo leg over the weekend, the 29-year-old Obiena finished seventh with a forgettable 5.70m.

Obiena, the reigning Asian champion and record holder, kicked off his bid by clearing 5.45m before skipping 5.60m and breaching the 5.70m mark in his second try.

However, he failed to clear 5.80m in three tries, dooming his chances in this prestigious event that offers valuable ranking points for the final leg in Zurich in August.

It was yet another sorry setback for the Filipino as he failed to sustain the momentum he gained from a successful campaign in the Asian Athletics Championships in South Korea recently.

Duplantis notched up his 37th victory in 41 Diamond League outings, finishing well ahead of Australia's Kurtis Marschall who managed a best of 5.90m.

The United States-born Duplantis was in a class of his own in another punishing display of vaulting of the highest order, three days after a stellar display in Oslo.

"I kept saying it was the only thing I was missing in the accolades, to break a record in Sweden," he said.