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kalshi historical data / sports / KXNBAPLAYIN
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Which Team Will Make the Play-In Tournament, tick by tick.
Kalshi series KXNBAPLAYIN: order book and trades, 2026-09-27 → 2026-10-23.

The order-book and trade history of Kalshi's Which Team Will Make the Play-In Tournament 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 · ~2 MB per day · 48 MB on disk · 30 open markets
pull KXNBAPLAYIN days →schemapricing

What a KXNBAPLAYIN 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.

~132 kB per KXNBAPLAYIN 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.

~2 MB per KXNBAPLAYIN day
Tradeskalshi_trades

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

~8 kB per KXNBAPLAYIN 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.

~120 kB per KXNBAPLAYIN day

KXNBAPLAYIN 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 Atlanta qualify for the Pro Basketball Eastern Conference Play-In Tournament?: AtlantaKXNBAPLAYIN-27EAST-ATLcloses 2027-06-15 14:00 UTC
Will Brooklyn qualify for the Pro Basketball Eastern Conference Play-In Tournament?: BrooklynKXNBAPLAYIN-27EAST-BKNcloses 2027-06-15 14:00 UTC
Will Boston qualify for the Pro Basketball Eastern Conference Play-In Tournament?: BostonKXNBAPLAYIN-27EAST-BOScloses 2027-06-15 14:00 UTC
Will Charlotte qualify for the Pro Basketball Eastern Conference Play-In Tournament?: CharlotteKXNBAPLAYIN-27EAST-CHAcloses 2027-06-15 14:00 UTC
Will Chicago qualify for the Pro Basketball Eastern Conference Play-In Tournament?: ChicagoKXNBAPLAYIN-27EAST-CHIcloses 2027-06-15 14:00 UTC
Will Cleveland qualify for the Pro Basketball Eastern Conference Play-In Tournament?: ClevelandKXNBAPLAYIN-27EAST-CLEcloses 2027-06-15 14:00 UTC
Will Detroit qualify for the Pro Basketball Eastern Conference Play-In Tournament?: DetroitKXNBAPLAYIN-27EAST-DETcloses 2027-06-15 14:00 UTC
Will Indiana qualify for the Pro Basketball Eastern Conference Play-In Tournament?: IndianaKXNBAPLAYIN-27EAST-INDcloses 2027-06-15 14:00 UTC
Will Miami qualify for the Pro Basketball Eastern Conference Play-In Tournament?: MiamiKXNBAPLAYIN-27EAST-MIAcloses 2027-06-15 14:00 UTC
Will Milwaukee qualify for the Pro Basketball Eastern Conference Play-In Tournament?: MilwaukeeKXNBAPLAYIN-27EAST-MILcloses 2027-06-15 14:00 UTC
Will New York qualify for the Pro Basketball Eastern Conference Play-In Tournament?: New YorkKXNBAPLAYIN-27EAST-NYKcloses 2027-06-15 14:00 UTC
Will Orlando qualify for the Pro Basketball Eastern Conference Play-In Tournament?: OrlandoKXNBAPLAYIN-27EAST-ORLcloses 2027-06-15 14:00 UTC

Coverage notes for KXNBAPLAYIN

  • 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 KXNBAPLAYIN 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 KXNBAPLAYIN-.
  • 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 KXNBAPLAYIN, every table, is about 53 MB. Bought for Kalshi, Starter ($29/mo) carries top of book, trades and the ticker for every series plus one series of your choice, KXNBAPLAYIN 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: KXNBAPLAYIN at full depth →L10: every series at 10 levelsL25: every series, 25 levelsfree sample day

Other sports series on Kalshi

College Football SpreadCollege Football Total PointsITF Women's MatchITF Men's MatchCounter-Strike 2 GameNBA TotalCollege Football Team Total PointsNBA SpreadPro Football SpreadCollege Football GameChallenger ATPCollege Football 1st Half SpreadPro Football Receiving YardsPGA TourPro Football Total PointsNHL Total GoalsCounter-Strike 2 Map WinnerPro Football Rushing YardsCollege Football 1st Half TotalCollege Football 2nd Half Spread… the whole venue