With nine of the top-10 riders from the world rankings in action and qualifying points at a premium as the series moves towards the closing stages, this was always going to be a tough one to win. But Lynch kept himself in contention with a clear first round to join nine others in the decider against the clock.
Third-last to go, he needed to get as close as possible to the target time set by 2011 World Cup champions, Germany's Christian Ahlmann and the stallion Taloubet Z.
And although Lynch's massive gelding, Abbervail van het Dingeshof, was more than two seconds slower crossing the line, that was still good enough for the runner-up spot.
"I didn't even try to beat Christian's time – Taloubet is one of the quickest horses in the world" said Lynch, who travels to Zurich in Switzerland with the promising All Star for round 10 of the 12-leg qualifying series next Sunday.
Meanwhile, Flexible, the extraordinary stallion bred by Edward and Catherine Doyle in Kildare, whose long list of career successes includes the World Cup title in 2012, has won the prestigious USA Horse of the Year Award.