# Seattle Mariners vs. Houston Astros

> Polymarket binary prediction market. 65% implied probability of YES as of Tue, 12 May 2026 23:59:49 GMT. 24h change +7.0pp, 24h volume $253.7K.

**Canonical URL:** https://orrery.me/markets/mlb-sea-hou-2026-05-12
**Polymarket source:** https://polymarket.com/event/mlb-sea-hou-2026-05-12
**Category:** Sports
**Resolves by:** May 20, 2026
**Last fetched:** 2026-05-12T23:59:49.560Z

## Live snapshot

| Metric | Value |
|---|---|
| YES probability | **65¢** (65%) |
| Δ 1h | +0.0pp |
| Δ 24h | +7.0pp |
| Δ 1w | +0.0pp |
| 24h volume | $253.7K |
| Lifetime volume | $254.2K |
| Liquidity (orderbook depth) | $509.2K |
| Spread | 1.00pp |

## Resolution

**Resolves by:** May 20, 2026

**Source:** https://www.mlb.com/

### Market description (verbatim from Polymarket)

> In the upcoming MLB game between the Seattle Mariners and Houston Astros, scheduled for May 12 at 8:10PM ET:
> 
> This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game.
> 
> This market will resolve to "Houston Astros" if the Houston Astros win the game.
> 
> If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50.
> 
> The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.

## Top holders

**Top YES holders**

- `0x1d1a…0df6` — 66,491.73 shares
- `0xc807…c12b` — 58,778.738 shares
- `0x9a4c…1f30` — 25,000 shares
- `0xd48a…6e90` — 11,252.308 shares
- `0x339a…1eae` — 5,500 shares

**Top NO holders**

- `0xdcbf…d37f` — 26,510.797 shares
- `0x9703…69c2` — 24,706.773 shares
- `0x38f0…2768` — 17,378.436 shares
- `0x21f3…35e3` — 16,554.05 shares
- `0xf152…64aa` — 12,292.388 shares

## 7-day price-history summary

| Metric | Value |
|---|---|
| Sample count | 155 |
| Window start | 2026-05-06T14:00:09.000Z |
| Window end | 2026-05-12T23:58:06.000Z |
| Range | 43¢ → 65¢ |
| Net change | +12.5pp |

Full series available as JSON via `GET https://orrery.me/api/markets?slugs=mlb-sea-hou-2026-05-12` — the chart on the human page is rendered from this same data.

## Cite this

```
Orrery. "Seattle Mariners vs. Houston Astros — 65% on Polymarket."
Retrieved 2026-05-12T23:59:49.560Z from https://orrery.me/markets/mlb-sea-hou-2026-05-12.
```

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*Orrery is a public, read-only intelligence terminal for prediction markets. Not affiliated with Polymarket. Not investment, legal, or tax advice. Numbers are fetched live; citation timestamp matters. See <https://orrery.me/disclaimer>.*