Andrew Coscoran finished in fifth position in the historic Wanamaker Mile at the Millrose Games in New York on Sunday evening, running 3:49.54.
Coscoran bravely tracked the pacemaker, leading the field in the opening half of the race, passing the 800m mark in a swift 1:53.04.
The Balbriggan native was then swallowed by the pack with 400m to run but held his own in the closing 200m to clock just 0.28 seconds slower than the outright Irish record he set in last year's race.
A 1500m split of 3:33.55 was also given for the Irish national record holder which is inside the automatic qualifying mark for the distance for the World Indoor Championships in March.
Coscoran already holds a qualifying time in the 3000m, which he ran in Boston last week.
Cameron Myers claimed the trophy in a world leading time of 3:47.57, denying Yared Nuguse his fourth Wanamaker mile win.
Irish shot put record holder Eric Favours was also competing at the meeting and finished in sixth place with a best throw of 19.64m in the third round.
The indoor throws event was won by Rajindra Campbell of Jamaica with a world leading effort of 21.77m.
23-year-old Longford athlete Cian McPhillips was forced to withdraw from the stacked men’s 800 metres with a dental issue.
After an impressive season's debut over 600 metres in Boston, Massachusetts last weekend where he defeated 2019 World 800m Champion Donovan Brazier and American record holder Bryce Hoppel, the race tonight was set to be the first 800 metres contest for McPhillips since his fourth-place finish at the World Championships in Tokyo last August.
With McPhillips absent, the event was won by American collegiate athlete Colin Sahlman in 1:44.70 from Mohamed Attaoui of Spain.
Brazier and Hoppel finished fourth and fifth respectively.
