> ## Documentation Index
> Fetch the complete documentation index at: https://docs.uplift.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Time to Release

> Time from initiation to ball release. This measures the total duration of the pitching motion.

## Technical Details

* **Variable Type:** Discrete Metric
* **Data Type:** Float
* **Units:** seconds (s)
* **Column Name:** `time_to_release`
* **Aggregation:** mean
* **Precision:** 2
* **Calculation:** Ball release time - Initiation time
* **Typical Range:** 1.12 – 1.35 s
* **Optimal Direction:** Middle — moderate values are optimal

## Description

Time to release measures the total duration of the pitching motion from initiation to ball release, indicating the overall timing of the pitch from first movement to release.

## Normative Ranges

Percentile distributions by competition level from the 2026 Q1 dataset; the optimal range spans the 25th–75th percentiles.

| Population         | Optimal Range (25th–75th) | 10th | 25th | 50th | 75th | 90th |
| ------------------ | ------------------------- | :--: | :--: | :--: | :--: | :--: |
| Youth              | 1.07 – 1.33 s             | 1.00 | 1.07 | 1.21 | 1.33 | 1.46 |
| High School        | 1.20 – 1.39 s             | 1.12 | 1.20 | 1.28 | 1.39 | 1.53 |
| College            | 1.11 – 1.31 s             | 1.07 | 1.11 | 1.23 | 1.31 | 1.40 |
| Professional       | 0.97 – 1.30 s             | 0.55 | 0.97 | 1.18 | 1.30 | 1.43 |
| Broad (All Levels) | 1.12 – 1.35 s             | 1.02 | 1.12 | 1.24 | 1.35 | 1.48 |

## Use Cases

* Pitch timing analysis