Aileen Reid climbed to sixth in the world rankings following a stunning fourth place finish in the London World Triathlon Series on Sunday.
Londonderry native Reid emerged from the 750 metre swim in 17th position leaving her in the chasing bike pack.
Through 20 kilometres of twists and turns on greasy Hyde Park roads they could not reel in the leading seven athletes ahead.
Once into her stride on the final 5 kilometre run, Reid was clearly in good form and continued to move through the field, clocking the second fastest run to finish just outside the podium positions in 4th place in a time of 56:25.
“I’m really pleased, it’s finally coming together for me,” said Reid.
“It’s half the distance (Sprint) but it’s twice as hard,”
“Unfortunately I missed that front pack after the swim but I had a really great run, I didn’t think I was going to run that fast.”
Reid will now turn her attention to the Baku European Games on June 13, with automatic Rio Olympic qualification on offer to the winner.