Original sentence: 2013 marked a change in the marathon course.Barrel cones closed off the traffic lane to oncoming automobiles providing runners with a corridor within which to run.In 2009, the number of marathon runners had grown to 748.Prior to Hillary Kibet Cheruiyot (Of Kenya) winning the men's 2010 race, and Claudia Camargo-Nero (a New York resident from Argentina) winning the women's 2010 race, only United States born, Utah residents had won the marathon race for either gender.Route 189 is also known as the Provo Canyon Scenic Byway.The 5K was discontinued as of the 2012 event
Edited sentence: 2013 marked a significant change in the marathon course.Barrel cones closed off the traffic lane to oncoming automobiles providing runners with a safe corridor within which to run.In 2009, the number of marathon runners grew to 748.Prior to Hillary Kibet Cheruiyot (  ) winning the men's 2010 race, and Claudia Camargo-Nero (A New York resident from )  winning the women's 2010 race, only United States born, Utah residents had won the marathon race for either gender.Route 189 is also known as the Provo Canyon Scenic Byway for its natural beauty.The 5K has been discontinued as of the 2012 event