Ruben Sanca knows he isn’t going to win the 2015 Boston Marathon, but that isn’t going to stop him from trying.

Ruben Sança and his son, Greyson, ran 4:32.2 at the High Street Mile in Newburyport, Massachusetts, to unofficially topple the current Guinness world record.

Ruben Sanca lives and works in Massachusetts, but he'll represent Cape Verde in the 5,000 meters in the upcoming Olympics. Bill Littlefield goes to Lowell, Mass. to talk to the unknown Olympian.

Former UMass Lowell star runner Ruben Sanca is waiting to hear if he set a Guinness World Record. He finished the High Street Mile in Newburyport in a time of 4:32.2 despite pushing his son, Greyso… ...

Ruben Sança and his five-year-old son Greyson unofficially topped the current Guinness World Record in Newburyport. Read more on Boston.com.