# Polymarket NPB Baseball (games & props) Data

> Canonical HTML (full statistics, contract grids, FAQ): https://cryptostruct.com/prediction-markets/polymarket-npb · This document: https://cryptostruct.com/prediction-markets/polymarket-npb.md · Buy: https://cryptostruct.com/shop/bundles?bundle=polymarket-npb

Every Polymarket “NPB Baseball (games & props)” contract of the day — every trade print and the complete Level-2 book, captured co-located with nanosecond venue and receive timestamps. 111 trading days as day bundles, €1 per day, bought as a guest with instant download.

## Facts

- Venue: Polymarket (`polymarket`) · Category: Sports · Interval: event · Venue slug: `npb-`
- Bundle id (MCP/HTTP `instrument_id` with `kind: "series_day"`): `9000000773` · Series key: `polymarket-npb`
- Price: **€1.00 per bundle day** (every contract file of the series on that UTC day; tax-inclusive)
- Coverage: 111 days from 2026-06-24 to 2026-10-12 · 5.1 GB compressed in total · typically 51 files per day (up to 104)

## How to buy

- Web: https://cryptostruct.com/shop/bundles?bundle=polymarket-npb — pre-filled days: `https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=<from>..2026-10-12`
- MCP (https://cryptostruct.com/mcp): `get_bundle_coverage {series_key: "polymarket-npb"}` → `create_checkout` with `{instrument_id: 9000000773, date: "<YYYY-MM-DD>", kind: "series_day"}`
- HTTP: `POST https://cryptostruct.com/api/quote` with the same items → guest checkout (https://cryptostruct.com/docs/api.md)
- Delivery: one ZIP per day (`&kind=series_day&zip=1` on the order download route), one resumable tar for multi-day ranges — contract in https://cryptostruct.com/llms.txt

## Last 30 recorded days

| UTC day | Files | Size (zstd) | Trades | Turnover (USD) | Buy |
| --- | --- | --- | --- | --- | --- |
| 2026-10-12 | 6 | 19 MB | 39 | $1,292 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-10-12 |
| 2026-10-11 | 8 | 22 MB | 167 | $6,449 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-10-11 |
| 2026-10-10 | 17 | 32 MB | 296 | $18,722 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-10-10 |
| 2026-10-09 | 17 | 6 MB | 19 | $122 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-10-09 |
| 2026-10-08 | 17 | 7 MB | 61 | $3,316 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-10-08 |
| 2026-10-07 | 18 | 17 MB | 67 | $8,108 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-10-07 |
| 2026-10-06 | 25 | 8 MB | 118 | $7,859 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-10-06 |
| 2026-10-05 | 21 | 18 MB | 184 | $5,348 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-10-05 |
| 2026-10-04 | 22 | 19 MB | 96 | $2,804 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-10-04 |
| 2026-10-03 | 24 | 48 MB | 321 | $16,664 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-10-03 |
| 2026-10-02 | 25 | 35 MB | 315 | $9,094 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-10-02 |
| 2026-10-01 | 27 | 46 MB | 287 | $9,760 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-10-01 |
| 2026-09-30 | 28 | 22 MB | 75 | $5,681 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-09-30 |
| 2026-09-29 | 31 | 32 MB | 134 | $7,444 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-09-29 |
| 2026-09-28 | 34 | 20 MB | 130 | $6,306 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-09-28 |
| 2026-09-27 | 41 | 33 MB | 185 | $8,294 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-09-27 |
| 2026-09-26 | 43 | 33 MB | 161 | $14,821 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-09-26 |
| 2026-09-25 | 45 | 47 MB | 338 | $19,568 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-09-25 |
| 2026-09-24 | 46 | 19 MB | 134 | $5,344 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-09-24 |
| 2026-09-23 | 50 | 78 MB | 676 | $32,215 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-09-23 |
| 2026-09-22 | 56 | 102 MB | 676 | $42,432 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-09-22 |
| 2026-09-21 | 55 | 81 MB | 520 | $47,615 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-09-21 |
| 2026-09-20 | 56 | 84 MB | 241 | $10,418 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-09-20 |
| 2026-09-19 | 57 | 59 MB | 406 | $20,261 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-09-19 |
| 2026-09-18 | 57 | 38 MB | 239 | $15,675 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-09-18 |
| 2026-09-17 | 57 | 39 MB | 201 | $11,509 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-09-17 |
| 2026-09-16 | 57 | 38 MB | 128 | $3,556 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-09-16 |
| 2026-09-15 | 55 | 63 MB | 269 | $12,658 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-09-15 |
| 2026-09-14 | 51 | 26 MB | 287 | $24,402 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-09-14 |
| 2026-09-13 | 52 | 49 MB | 167 | $11,973 | https://cryptostruct.com/shop/bundles?bundle=polymarket-npb&d=2026-09-13 |

Trades and turnover are our own counts from the recorded feed; "—" = not yet computed. ⚠ marks a day with fewer files than the series typically has.

Terms: https://cryptostruct.com/terms.md · Data license: https://cryptostruct.com/license · Prediction-market hub: https://cryptostruct.com/prediction-markets
