Through the years, runners of all abilities have completed individual Badwater to Mt. Whitney crossings in the spirit of the early crossings, usually aided by crew. In 2005, Hugh Murphy initiated an informal gathering known as the Badwater Solo Ultra 135/146. Runners could finish at Whitney Portal (135 mi.), but were encouraged to continue to the summit of Mt. Whitney (146 mi.) Finishers of either distance were presented with a bronze belt buckle. In 2007, the informal group start was dissolved due to National Park Service permitting regulations. Solo runners continue to complete the course on an individual basis during the months of July and August. The word "solo" is used to designate runners who are not part of the official race. These Solos should not be confused with the unassisted crossings of Ulrich or Weber. In compliance with National Park and Forest Service permitting rules, the Badwater Solo is not a competitive race or an organized event of any kind. In general there are three types of recognized "solos". "Solo badwater" where the runner has a crew. "Solo self supported" or "Solo Oasis to oasis", where the runner does not have a crew but can use/buy/stash water and food. "Solo self contained" where the runner cannot get help and has to carry all food and water (see exact rules established by Marshall Ulrich). Since 2007, Marcia Rasmussen has attempted to award each Solo crossing a buckle for their finish. "Badwater" Ben Jones used to maintain a "Master List" of all Badwater-to-Whitney crossings, including finishers of the official Badwater Ultramarathon and the Badwater Solo.