The inaugural season of the Michael Johnson-backed Grand Slam Track will end prematurely as, per media reports, the final leg scheduled for Los Angeles has been cancelled.

It is understood there were concerns about the economics of the deal at the final venue of the 2025 calendar in Los Angeles, and organizers will instead concentrate on next season's programme.

The BBC also reported that Grand Slam Track (GST) is set to announce new investors to help fund its second season.

The competition was due to run for four meets in its debut season, culminating at University College Los Angeles' Drake Stadium on 28-29 June.

The LA meet was in line to follow those in the Jamaican capital of Kingston - which saw low ticket sales throughout the events - and in the USA in Miami and Philadelphia.

Male and female competitors are subdivided into six categories - each containing eight athletes - such as Short Sprints, with the eight featuring in that group competing in the 100m and 200m each weekend.

It offered significant financial incentives, with up to US$100,000 on offer for the winners of race categories, as well as salaries for contracted athletes.

Jamaica's Ackera Nugent and Trinidad & Tobago's Jereem Richards were among the top performers in this season's inaugural staging with Nugent winning the short hurdles category in both Miami and Philadelphia.