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kalshi historical data / sports / KXF1TOPCONSTRUCTOR
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F1 Top Constructor, tick by tick.
Kalshi series KXF1TOPCONSTRUCTOR: order book and trades, 2026-09-28 → 2026-10-23.

The order-book and trade history of Kalshi's F1 Top Constructor series (new markets on an irregular schedule, one event per game, match or release): 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.

18 days2026-09-28 → 2026-10-23 · 8 of 26 days without a book · ~1 MB per day · 21 MB on disk · 11 open markets
pull KXF1TOPCONSTRUCTOR days →schemapricing

What a KXF1TOPCONSTRUCTOR day contains

Four parquet files per day, every market of the series in each. Sizes are this series' own averages over its 18 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.

~108 kB per KXF1TOPCONSTRUCTOR 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.

~960 kB per KXF1TOPCONSTRUCTOR day
Tradeskalshi_trades

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

~17 kB per KXF1TOPCONSTRUCTOR 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.

~87 kB per KXF1TOPCONSTRUCTOR day

KXF1TOPCONSTRUCTOR markets

The 11 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.

Main Race Top Constructor: Alpine F1 Team: Alpine F1 TeamKXF1TOPCONSTRUCTOR-UNIS26-ALPcloses 2026-11-02 02:00 UTC
Main Race Top Constructor: Aston Martin F1 Team: Aston Martin F1 TeamKXF1TOPCONSTRUCTOR-UNIS26-ASTcloses 2026-11-02 02:00 UTC
Main Race Top Constructor: Audi F1 Team: Audi F1 TeamKXF1TOPCONSTRUCTOR-UNIS26-AUDcloses 2026-11-02 02:00 UTC
Main Race Top Constructor: Cadillac: CadillacKXF1TOPCONSTRUCTOR-UNIS26-CADcloses 2026-11-02 02:00 UTC
Main Race Top Constructor: Ferrari: FerrariKXF1TOPCONSTRUCTOR-UNIS26-FERcloses 2026-11-02 02:00 UTC
Main Race Top Constructor: Haas F1 Team: Haas F1 TeamKXF1TOPCONSTRUCTOR-UNIS26-HAAcloses 2026-11-02 02:00 UTC
Main Race Top Constructor: McLaren: McLarenKXF1TOPCONSTRUCTOR-UNIS26-MCLcloses 2026-11-02 02:00 UTC
Main Race Top Constructor: Mercedes AMG Motorsport: Mercedes AMG MotorsportKXF1TOPCONSTRUCTOR-UNIS26-MERcloses 2026-11-02 02:00 UTC
Main Race Top Constructor: Racing Bulls: Racing BullsKXF1TOPCONSTRUCTOR-UNIS26-RACcloses 2026-11-02 02:00 UTC
Main Race Top Constructor: Red Bull Racing: Red Bull RacingKXF1TOPCONSTRUCTOR-UNIS26-REDcloses 2026-11-02 02:00 UTC
Main Race Top Constructor: Williams: WilliamsKXF1TOPCONSTRUCTOR-UNIS26-WILcloses 2026-11-02 02:00 UTC

Coverage notes for KXF1TOPCONSTRUCTOR

  • First day on disk: 2026-09-28. The series' first book appeared then. New days are added daily.
  • Trades before 2026-09-27. Kalshi's historical API has no tick-level order book, so earlier KXF1TOPCONSTRUCTOR 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 KXF1TOPCONSTRUCTOR-.
  • 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 KXF1TOPCONSTRUCTOR, every table, is about 34 MB. Bought for Kalshi, Starter ($29/mo) carries top of book, trades and the ticker for every series plus one series of your choice, KXF1TOPCONSTRUCTOR 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: KXF1TOPCONSTRUCTOR at full depth →L10: every series at 10 levelsL25: every series, 25 levelsfree sample day

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