A Belmont woman is closing in on finishing an incredible challenge, as she attempts to run a marathon on all seven continents in seven days.
Becca Pizzi is competing in the World Marathon Challenge.
Since Friday, she has completed marathons in Antarctica, Chile, Miami, Madrid and Morocco.
On Wednesday, she runs in Dubai and on Thursday she will run in Sydney, Australia.
Pizzi began her odyssey by setting a new record time for the course in Antarctica.
She ran the race in Morrocco just 12 hours after completing the marathon in Spain.
Pizzi is attempting to become the first American woman to ever finish the World Marathon Challenge.
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