> For the complete documentation index, see [llms.txt](https://size.club/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://size.club/docs/playing-a-trial/size-trials.md).

# Trials

Trials are the match format. One Trial is a fifteen minute match on live markets. Finish #1 after using a Key and you earn a Life.

## At a glance

* **Duration:** 15 minutes
* **Structure:** 5 stages × 3 minutes
* **Field:** you + 9 bots
* **Elimination:** lowest score out at the end of every stage
* **Survivors:** 5 finish, placed #1 to #5
* **Win prize:** #1 wins an Alpha Life
* **Cost:** 1 Key ([Practice](/docs/playing-a-trial/practice-trials.md) is free)

```mermaid
flowchart LR
 A[10] --> B[9] --> C[8] --> D[7] --> E[6] --> F[5]
```

Only #1 wins a Life. #2 to #5 are Finalists. Everyone gets [Your Grading](/docs/playing-a-trial/your-grading.md). Prize sizes: [Product tiers](/docs/how-size-works/product-tiers-keys-and-lives.md).

## Is my money at risk?

No. A Trial gives you a simulated balance to trade against live market prices. The positions are not real orders from your wallet, and the only thing at stake is the Key. Lose every trade and the run still only cost you the price of your Key. See [What you risk and what you can win](/docs/how-size-works/what-you-risk-and-what-you-can-win.md).

What can you trade? Whatever is in the asset dropdown: [Markets you can trade](/docs/how-size-works/markets-you-can-trade.md).

## How to enter

1. Open Trials from HQ.
2. Run Practice first if you want a free look.
3. When you are ready, use a Key from Inventory and start.

![Entering a Trial with a Key ready](https://cdn.jsdelivr.net/gh/dropbear-hl/size-docs-assets@master/trials-entry-with-key.png)

One Trial at a time: finish your current run before starting another.

## Deep dives

1. [How to win](/docs/playing-a-trial/how-to-win.md)
2. [Minute by minute](/docs/playing-a-trial/a-trial-minute-by-minute.md)
3. [How scoring works](/docs/playing-a-trial/how-scoring-works.md)
4. [Stage Boosts](/docs/playing-a-trial/stage-boosts-and-missions.md)
5. [Bots and Field Rating](/docs/playing-a-trial/the-bots-and-field-rating.md)
6. [Your Grading](/docs/playing-a-trial/your-grading.md)
7. [Medals](/docs/playing-a-trial/medals.md)
8. [Practice Trials](/docs/playing-a-trial/practice-trials.md)


---

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