Sports events bring great economic effects. There are a lot of walking events and they attract many participants. Fourteen big walking events are held by the Japan Marching League (JML) in Japan. The purpose of this study was to clarify the expenditure tendencies of walking event participants. We focused attention on the holding place of the events and residence of participants, and selected four walking events held by the JML. We conducted questionnaire investigation and interview investigation with walking event participants. Question items regarding expenditures included transportation, lodging, food, product purchases, souvenir purchase' and optional activities. As a result, it became clear that the expenditures of participants differed according to the event. The participants who live far from the event place pay much more money for not only transportation but also for lodging, food and souvenirs. It is important to attract a lot of participants from both the host city and the ouside to get economic effects from walking events.