Lamont Marshall ran the fastest 5,000 metres by a Bermudian, indoors or outdoors, during his opening race of the year.

In an unusual reversal of the norm, he bettered his outdoor mark for the distance, despite having to run 25 bends on a tight indoor track at Boston University’s John Thomas Terrier Classic on Saturday.

Marshall clocked 14min 22.19sec to shatter Terrance Armstrong’s national record by about 22 seconds. He was more than a second faster than his own Bermudian outdoor record, which he set last year.

It is the second consecutive year that the Devonshire athlete has opened his racing season with a national record. He started 2017 by setting new figures for the 3,000.

More than 60 runners competed in four separate 5,000 races at the indoor meeting on Saturday, and Marshall was the second quickest, bettered only by American Kevin James, who clocked 14:17 in the same race.

In June, Marshall achieved the qualifying standard for this year’s Commonwealth Games on the Gold Coast, Australia, when he ran a 3,000 steeplechase in 8:49.71, setting a national record.

In preparation for the new season, he built up his base training by running 90 to 95 miles per week before switching to anaerobic workouts, such as intervals and tempo runs. Hill work at the Arboretum included running 20 hills in around two minutes.

“We credit that with giving him the stamina he needed,” said Larry Marshall, his father. “Going into the race he felt confident because he has had a lot of good sessions.”

Marshall set off at a conservative pace, covering the first 400 in 70sec before gradually working his way through the field to finish second.

“It is significant that it is the first time he has broken a national record and felt comfortable when doing it,” said his father.

The record has been recognised by the Bermuda National Athletics Association. It is the eleventh time Marshall has broken a national track record.

He will return to the Boston University track on February 10 to compete in a 3,000 race, and is aiming to go under eight minutes to break his national mark of 8:08.69. Locally, Marshall is considering competing in the Lindo’s to Lindo’s 10K in March, when he will aim to run a sub-31min time.

• The Berkeley Institute will stage a fun run and walk as part of the school’s 120th Anniversary celebrations. The event will be held on February 10, starting at 8.30am.