Launching today

RunDida
Free running calculators and race-planning tools
2 followers
Free running calculators and race-planning tools
2 followers
Plan your next run or race with free pace calculators, finish-time predictions, printable training plans and marathon information. Core tools work without an account. Includes a public REST API and an open-source MCP server.

Free
Launch tags:Health & Fitness
Launch Team

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Promoted
Hi Product Hunt, I built RunDida to bring the calculations and planning tasks around running into one place.
You can calculate pace and finish times, explore race predictions, use printable training plans and look up marathon information. The core calculators work without an account, and the site has English, Chinese and Japanese versions plus selected French and German tools.
For developers, there is also a public REST API and an open-source MCP server.
I would love feedback on which running task you tried, whether the result was clear, and what would make it easier to use.