Cancer Staging. Staging is the process of finding out how much cancer is in a personâs body and where itâs located. Itâs how the doctor determines the stage of a personâs cancer. For most types of cancer, doctors use staging information to help plan treatment and to predict a personâs outlook (prognosis). Although each personâs situation is different, cancers with the same stage tend to have similar outlooks and are often treated the same way.
As the other answers, the distance of Boston marathon is 26.2 miles or 42.195 kilometers, just like all other marathon. But you need run really fast to be qualified to take part in Boston marathon, that will take a long time, that would be years long.
Boston Marathon Qualifying Times. For amateur runners, some people use the Boston Marathon qualifying times (BQ) as a measure of a good marathon time. Only a small percentage of marathon runners achieve these times. To qualify for the Boston Marathon, men ages 18 to 34 must run 3:05 or faster, and women in that age group must run 3:35 or faster. After that, additional time is given to older age groups. The BQ time standards can change from year to year. To qualify, you must run a marathon that is one of the designated Boston Qualifier races. Many runners select one of the marathons with the fastest courses to attempt to earn a BQ time.