withdraw
一度は日本人ランナーの参加を排除した北京マラソン組織委員会ですが（http://www.japantimes.co.jp/text/nn20121111a7.html）、その決定を取り消しました。
withdrawには「（申し出・言明・約束などを）撤回する、取り下げる」という意味があります。「一転して〜する」という文脈でよく見かけます。（UG）
Japanese Runners Allowed in Beijing Marathon
Beijing, Nov. 11 (Jiji Press)--The organizing committee of the 2012 Beijing Marathon has withdrawn its earlier decision to ban Japanese runners from the race.
The committee added Japan to the list of nationalities that registrants choose from on the event's official Web site.
The committee previously banned Japanese runners from the Nov. 25 event, citing safety concerns. The move was taken as China's response to tensions with Japan over disputed islands in the East China Sea, known as Senkaku in Japan and Diaoyu in China.
The committee reversed the decision after it came under criticism from Chinese media and on the Internet while the Japanese embassy requested that the matter be handled appropriately.
An official at China's track and field association told a local newspaper that the Beijing Marathon welcomes runners from across the world.
