Health
Running Pace Calculator (Distance / Time / Pace)
Solve for pace, finish time or distance given the other two. Enter a known distance and either a finish time or a pace, and get the missing value plus speed and optional Riegel race predictions.
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Quick start
Call this tool from your code in three languages.
cURL
curl -X POST 'https://api.elysiatools.com/en/api/tools/running-pace-calculator' \
-H 'Content-Type: application/json' \
-d '{"solve":"pace","distance":10,"unit":"km","time":"55:00","pace":"5:30","predict":"half","precision":2}'API reference
Send a POST request with your inputs as JSON. File parameters require a separate upload first.
Endpoint
HTTP
POST https://api.elysiatools.com/en/api/tools/running-pace-calculatorParameters
| Name | Type | Required | Description |
|---|---|---|---|
| solve | select | No | — |
| distance | number | Yes | — |
| unit | select | No | — |
| time | text | Yes | — |
| pace | text | Yes | — |
| predict |
MCP integration
Add this tool to your Model Context Protocol server so AI agents can list and call it.
Server configuration
Add this block to your MCP client configuration:
mcp.json
{
"mcpServers": {
"elysiatools-running-pace-calculator": {
"name": "running-pace-calculator",
"description": "Solve for pace, finish time or distance given the other two. Enter a known distance and either a finish time or a pace, and get the missing value plus speed and optional Riegel race predictions.",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=running-pace-calculator",
"command": "",
"args": [],
"env": {},
"isActive": true,
"type": "sse"
}
}
}List available tools
After connecting to the SSE endpoint, list the exposed tools:
tools/list
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}Call this tool
Invoke the tool by its id, passing arguments built from its parameters:
tools/call
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "running-pace-calculator",
"arguments": {
"solve": "pace",
"distance": 10,
"unit": "km",
"time": "55:00",
"pace": "5:30",
"predict": "half",
"precision": 2
}
}
}Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).
Questions or issues? Contact [email protected]