Seventy days after he finished second in the Olympic marathon at the Athens Games in 2004, Meb Keflezighi took second in the New York City Marathon in what was then a personal-best 2 hours 9 minutes 53 seconds.

In the coming weeks, Keflezighi will attempt to repeat the rare feat — two marathons in a little more than two months — this time with more on the line at the back end. He plans to run his first marathon of the year in New York on Nov. 6, then compete in the Olympic trials marathon 10 weeks later in Houston. No other American expected to qualify for the United States team will attempt both races.

Keflezighi, 36, dismissed the notion that the double is too difficult.

“I’m older, hopefully wiser,” he said, looking back to 2004. “I don’t see anything wrong with trying it.”

The timing of the marathon trials has complicated the fall marathon season for the United States’ top runners. Most of the favorites to make the Olympic team have been forced to decide between New York, the world’s largest marathon, and the trials.