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# Why Is My ThruPlay Rate Low? Diagnostic Guide for Video Ads

> A step-by-step diagnostic for underperforming video ads: check thumbstop, then hold, then ThruPlay — and learn when ThruPlay rate misleads. This is a diagnostic workflow, not a benchmark list.

## What ThruPlay Measures

**ThruPlay rate** = ThruPlays ÷ Video Plays × 100

A ThruPlay fires when a viewer watches the video to completion (under 15s) or for **15+ seconds** (longer videos). It does **not** count ad clicks — a common misconception. Pair it with hold rate for true watch depth. (On Meta, autoplay keeps video plays ≈ impressions, so the band holds either way.)

| Metric | Definition | Best for |
| --- | --- | --- |
| ThruPlay rate | Completion or 15s+ plays ÷ video plays | Engagement depth |
| Hold rate | % still watching at timestamp X | Retention diagnosis |
| VCR | Full video views / impressions | Short-form completion |
| Thumbstop rate | 3s views / impressions | Hook strength |

## Diagnostic Workflow for Low ThruPlay

1. Check thumbstop rate first — below 20% at 3s is a hook problem
2. Plot drop-off curve at 3s, 25%, 50%, 75%, 100%
3. Segment by placement (Reels vs Feed vs Stories)
4. Compare against your own historical top performers

## When ThruPlay Misleads

- A strong hook can inflate ThruPlay from viewers who never convert — pair it with CTR, landing-page CVR, and ROAS before declaring a creative a winner.
- Aggregate ThruPlay across mixed creative lengths mostly reports the length mix, not creative quality. Segment by length before comparing.
- Retargeting audiences hold longer than cold prospecting; never compare the two against one baseline.

## Looking for Benchmark Ranges?

Benchmark numbers live with their canonical owners, not in this diagnostic guide:

- [ThruPlay Rate glossary entry](/resources/glossary/metrics/thruplay-rate.md) — what counts as a good ThruPlay rate, with the formula
- [ThruPlay Rate Benchmark Analyzer](/resources/tools/analyzers/thruplay-rate-benchmark) — grade your own rate by length and placement
- [ThruPlay Rate Benchmarks 2026 by Video Length, Placement & Audience](/blog/topics/ad-performance/what-is-a-good-thruplay-rate-2026-benchmarks) — segmented 2026 ranges

## Related Tools

- [ThruPlay Rate Benchmark Analyzer](/resources/tools/analyzers/thruplay-rate-benchmark)
- [Video Drop-off Calculator](/resources/tools/calculators/video-dropoff-calculator)
- [VCR vs ThruPlay Comparison](/resources/comparisons/vcr-vs-thruplay-rate)