Here’s the latest you’re asking for, based on recent reports.
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The London Marathon 2026 is attracting record demand, with more than a million applications reported in 2025 for the 2026 edition, indicating it remains the world’s most sought-after marathon. This unprecedented interest has spurred discussion about potential format changes for future events.[2][3][9]
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There have been ongoing conversations about expanding the event beyond a single day. Some outlets and officials have floated the idea of a two-day London Marathon in 2027 to accommodate up to around 100,000 participants, though formal approval had not been granted as of early 2026.[1][2]
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For elite competition, coverage has highlighted Britain’s interest in maintaining a strong British presence and rivalries in the men’s and women’s races as the event evolves, with attention on how formats might shift while preserving elite competition.[7][10]
Key takeaways
- The 2026 London Marathon set or aimed to set records for participation and interest, underscoring its global appeal.[9]
- Organisers are exploring a possible two-day format in coming editions to increase capacity and fundraising potential, though nothing is finalized yet.[2]
- Elite fields and national rivalries remain a focus as plans evolve, with media emphasizing preparation and strategy for both mass-participation and elite races.[10]
If you’d like, I can compile a short, sourced timeline of announcements and provide a quick comparison of current plans versus traditional single-day format, with direct quotes from articles.