Claim: The Italian Marathon, an annual marathon race in the Province of Modena, Italy, was won by Italy the most with 24 recorded wins in the marathon's history followed by Kenya with 17 total wins.
Evidence: The Italian Marathon memorial Enzo Ferrari (Italian name: Maratona d'Italia memorial Enzo Ferrari) is an annual marathon race in the Province of Modena, Italy which begins in Maranello and finishes in Carpi. 
Italy 24 
Kenya 17