Overview
- Both events are confirmed to run on Sunday, Aug. 23, with Lima completing kit pickup and start‑wave assignments and Buenos Aires publishing multi‑day road closure maps for race weekend.
- The Lima edition reached 21,000 confirmed entrants while Buenos Aires reported roughly 30,500 sign‑ups, marking a new high in mass participation for the city’s 37th edition.
- Organizers assembled strong elite fields and incentives, including international stars such as Yomif Kejelcha and Fotyen Tesfay, Joan Benoit’s participation in Lima, and a US$10,000 prize in Lima for anyone who breaks the national half‑marathon record.
- Race operations emphasize crowd control and live services: Lima launched its first official race app, uses assigned entry ‘waves’ and mandatory kit rules, and Buenos Aires plans rolling and static closures that preserve Metrobús lanes while moving closures with the peloton.
- The two races blend sport and civic visibility—Lima’s 117th edition underlines its historical role and charity programs while Buenos Aires’ rapid growth serves as a dress rehearsal for its full marathon and wider city event planning.