ASHLAND (CBS) – Boston Marathon fan favorite Spencer is officially back.
Each year Spencer roots for runners along the marathon route in Ashland, about 2-3 miles into the course.
READ MORE: Race Director Dave McGillivray Finishes Running His 50th Boston Marathon
The 12-year-old golden retriever was named the official dog of the 126th Boston Marathon last week ahead of the race.

Spencer the golden retriever, who is the official dog of the 2022 Boston Marathon. (Image Credit: The Henry Studio)
Spencer underwent surgery late last year to have a tumor and his spleen removed and was later diagnosed with terminal cancer. He has since finished chemotherapy treatment.
READ MORE: TSA Will No Longer Enforce Mask Mandate After Court Ruling
The dog’s owner, Rich Powers, said leading up to the race he was hopeful Spencer would be up for a return to the course.

Spencer received a Boston Marathon medal (Image credit Rich Powers)
On Marathon Monday, Spencer was back out there, with Boston Strong flags in his mouth as the runners went by.
MORE NEWS: Molly Seidel Dropped Out Of Boston Marathon At Mile 16 Due To Injury
Powers said during the marathon, a man pulled a 2021 medal out of his pocket and put it on Spencer to keep.