---
title: "Race Pace Calculator: Goal Time and Negative Splits · Runima"
description: "Turn your goal finish time into a pacing plan, or add up your chosen race splits. Free race pace calculator for even pacing and negative splits."
canonical_url: "https://runima.fit/tools/race-pace-calculator"
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  "twitter:image": "https://runima.fit/og-image.jpg"
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> Index of every page on this site: [llms.txt](https://runima.fit/llms.txt)

# Race Pace Calculator

Choose a goal finish time or enter a pace for each part of your race

**Calculation Mode**

**Units**

**Race Distance**

**Target Finish Time**

:

:

#### Pacing Phases

Phase

Distance %

Pace (min/km)

Cumulative

Actions

Phase 1

—

Phase 2

—

Phase 3

—

## How it works

Split your race into parts, called phases, and choose how to calculate your plan:

- **Pace calculation:** Enter your goal finish time. The calculator finds the pace for each phase. Lock a phase to keep its pace while the others change.
- **Target calculation:** Enter a pace for each phase to see the total finish time.

Add or remove phases and choose how much distance each one covers.

### Example: finish the second half faster

A 50:00 goal for 10 km requires an average 5:00 min/km. A negative split means running the second half faster than the first. For example, run the first 5 km at 5:05 and the second 5 km at 4:55: 25:25 + 24:35 = 50:00.

The times add up, but that does not mean the goal is realistic or the strategy suits your race. A slower start can help you avoid running too hard early. Negative splits are one option, not a rule for every runner. This calculator does not account for fuel, heat, hills or tiredness late in a race.

To estimate paces from a recent race result or your activity data, use the [**Race Strategy Calculator**](https://runima.fit/tools/race-strategy-calculator). It lets you compare slower and faster paces for each phase.

**Want these numbers from your own data?**

Import your watch data and Runima tracks your fitness, fatigue and race readiness for free.

[**Create free account **](https://runima.fit/signup)

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