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kalshi historical data / sports / KXNCAAFB10
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Big Ten Champion, tick by tick.
Kalshi series KXNCAAFB10: order book and trades, 2026-09-27 → 2026-10-23.

The order-book and trade history of Kalshi's Big Ten Champion series (a new event every year): top of book on every change, the 25-level book on every change in YES terms, every trade with the taker's side, and Kalshi's own ticker, with exchange timestamps to the millisecond. Captured by us from Kalshi's websocket on two independent legs and checked against the exchange's own book snapshots.

27 days2026-09-27 → 2026-10-23 · every day since its first · ~1 MB per day · 38 MB on disk · 18 open markets
pull KXNCAAFB10 days →schemapricing

What a KXNCAAFB10 day contains

Four parquet files per day, every market of the series in each. Sizes are this series' own averages over its 27 days on disk.

Top of book (every change)kalshi_l1

Best YES bid and ask with sizes and the spread, one row whenever either changed, derived tick by tick from the rebuilt book: not Kalshi's conflated ticker.

~105 kB per KXNCAAFB10 day
Order book, 25 levels, every changekalshi_l2

The whole ladder after every book event, in YES terms (the NO bids become the asks, at their sizes), 25 levels a side: wide columns bid_px_1 … ask_sz_25, plus the exchange's own hourly snapshots. Each row is self-contained, so you can start reading mid-day.

~1 MB per KXNCAAFB10 day
Tradeskalshi_trades

Every trade: YES and NO price, size in contracts, the taker's side, block-trade flag, trade id.

~31 kB per KXNCAAFB10 day
Kalshi ticker (~1 s)kalshi_ticker

Kalshi's own ticker feed, about one update a second per market: last price, YES bid/ask with sizes, cumulative volume and open interest in contracts and dollars.

~97 kB per KXNCAAFB10 day

KXNCAAFB10 markets

The 12 closing nearest to now, from Kalshi's daily market list. Each is a row key (market_ticker) in every table, captured from the day it opens until it settles.

Will Illinois win the College Football Big Ten Championship?: IllinoisKXNCAAFB10-26-ILLcloses 2027-01-03 04:30 UTC
Will Indiana win the College Football Big Ten Championship?: IndianaKXNCAAFB10-26-INDcloses 2027-01-03 04:30 UTC
Will Iowa win the College Football Big Ten Championship?: IowaKXNCAAFB10-26-IOWAcloses 2027-01-03 04:30 UTC
Will Maryland win the College Football Big Ten Championship?: MarylandKXNCAAFB10-26-MDcloses 2027-01-03 04:30 UTC
Will Michigan win the College Football Big Ten Championship?: MichiganKXNCAAFB10-26-MICHcloses 2027-01-03 04:30 UTC
Will Minnesota win the College Football Big Ten Championship?: MinnesotaKXNCAAFB10-26-MINNcloses 2027-01-03 04:30 UTC
Will Michigan St. win the College Football Big Ten Championship?: Michigan St.KXNCAAFB10-26-MSUcloses 2027-01-03 04:30 UTC
Will Nebraska win the College Football Big Ten Championship?: NebraskaKXNCAAFB10-26-NEBcloses 2027-01-03 04:30 UTC
Will Northwestern win the College Football Big Ten Championship?: NorthwesternKXNCAAFB10-26-NWcloses 2027-01-03 04:30 UTC
Will Oregon win the College Football Big Ten Championship?: OregonKXNCAAFB10-26-OREcloses 2027-01-03 04:30 UTC
Will Ohio State win the College Football Big Ten Championship?: Ohio St.KXNCAAFB10-26-OSUcloses 2027-01-03 04:30 UTC
Will Penn State win the College Football Big Ten Championship?: Penn St.KXNCAAFB10-26-PSUcloses 2027-01-03 04:30 UTC

Coverage notes for KXNCAAFB10

  • First day on disk: 2026-09-27. That is the day our Kalshi capture began, not the series' launch. New days are added daily.
  • Trades before 2026-09-27. Kalshi's historical API has no tick-level order book, so earlier KXNCAAFB10 trades are in the whole-exchange trades history (from 2021-06-30, one file a day): filter market_ticker to this series' markets, which start with KXNCAAFB10-.
  • The first day starts at 11:00 UTC. Our capture began at 11:00 UTC on 27 September 2026: 13 hours that day, not 24, and no CF Benchmarks index file (that capture starts on the 28th).
  • A book-quality dip on 2026-09-29. During a pipeline cutover 10,255 exchange snapshots disagreed with the rebuilt book (41 to 1,378 on every other day) and 16,678 negative levels were clamped to zero. The book resynchronises at every exchange snapshot; trades and ticker are unaffected.
  • Every bundle ships a README with the schemas and, per day, how often the rebuilt book matched the exchange's own snapshots, for your exact range.

Pricing

A month of KXNCAAFB10, every table, is about 42 MB. Bought for Kalshi, Starter ($29/mo) carries top of book, trades and the ticker for every series plus one series of your choice, KXNCAAFB10 if you like, at full book depth; L10 ($49/mo) carries every series' book at 10 levels and L25 ($99/mo) the full 25-level book. Each includes 7 days before you join and every day after. Any free account can pull 2026-10-07, any series, up to 1.0 GB.

Starter: KXNCAAFB10 at full depth →L10: every series at 10 levelsL25: every series, 25 levelsfree sample day

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