Enjoy beautiful Tucson winter weather with temperatures at the start averaging in the high 30s and reaching 65-70 degrees Fahrenheit by 11 a.m. This is primarily a downhill marathon. with some hills around mile 2 and mile 10. Come run your FIRST MARATHON or your FASTEST MARATHON. You’ll drop almost 2,200 feet in elevation as you run on the mostly downhill, point-to-point course along the beautiful Santa Catalina mountain range. (There are some rolling hills and inclines between miles 2-5 and miles 10-13, as well as between miles 24-25).