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kalshi historical data / elections / KX2028RRUN
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2028 R running, tick by tick.
Kalshi series KX2028RRUN: order book and trades, 2026-09-27 → 2026-10-22.

The order-book and trade history of Kalshi's 2028 R running series (a one-off event): 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.

26 days2026-09-27 → 2026-10-22 · every day since its first · ~3 MB per day · 80 MB on disk · 38 open markets
pull KX2028RRUN days →schemapricing

What a KX2028RRUN day contains

Four parquet files per day, every market of the series in each. Sizes are this series' own averages over its 26 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.

~138 kB per KX2028RRUN 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.

~3 MB per KX2028RRUN day
Tradeskalshi_trades

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

~14 kB per KX2028RRUN 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.

~118 kB per KX2028RRUN day

KX2028RRUN 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.

Who will run for the Republican presidential nomination in 2028?: Byron DonaldsKX2028RRUN-28-BDONcloses 2028-01-01 15:00 UTC
Who will run for the Republican presidential nomination in 2028?: Brian KempKX2028RRUN-28-BKEMcloses 2028-01-01 15:00 UTC
Who will run for the Republican presidential nomination in 2028?: Chris ChristieKX2028RRUN-28-CCHRcloses 2028-01-01 15:00 UTC
Who will run for the Republican presidential nomination in 2028?: Doug BurgumKX2028RRUN-28-DBURcloses 2028-01-01 15:00 UTC
Who will run for the Republican presidential nomination in 2028?: Donald J. TrumpKX2028RRUN-28-DJTcloses 2028-01-01 15:00 UTC
Who will run for the Republican presidential nomination in 2028?: Donald J. Trump Jr.KX2028RRUN-28-DJTJRcloses 2028-01-01 15:00 UTC
Who will run for the Republican presidential nomination in 2028?: Erika KirkKX2028RRUN-28-EKIRcloses 2028-01-01 15:00 UTC
Who will run for the Republican presidential nomination in 2028?: Elon MuskKX2028RRUN-28-EMUScloses 2028-01-01 15:00 UTC
Who will run for the Republican presidential nomination in 2028?: Elise StefanikKX2028RRUN-28-ESTEcloses 2028-01-01 15:00 UTC
Who will run for the Republican presidential nomination in 2028?: Greg AbbottKX2028RRUN-28-GABBcloses 2028-01-01 15:00 UTC
Who will run for the Republican presidential nomination in 2028?: Gregory BovinoKX2028RRUN-28-GBOVcloses 2028-01-01 15:00 UTC
Who will run for the Republican presidential nomination in 2028?: Glenn YoungkinKX2028RRUN-28-GYOUcloses 2028-01-01 15:00 UTC

Coverage notes for KX2028RRUN

  • 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 KX2028RRUN 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 KX2028RRUN-.
  • 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 KX2028RRUN, every table, is about 92 MB. Bought for Kalshi, Starter ($29/mo) carries top of book, trades and the ticker for every series plus one series of your choice, KX2028RRUN 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: KX2028RRUN at full depth →L10: every series at 10 levelsL25: every series, 25 levelsfree sample day

Other elections series on Kalshi

House Race Winner?Midterm margin of victoryVote percentages in US general electionsMichigan Senate-Governor ComboMidterm Voter TurnoutHow many seats will party win in state?2028 D runningWorld leaders out this year?Who will win the Vancouver mayoral election?State legislature winnersDemocratic Primary winnerWhich state ballot measures will pass?Democratic VP nomCounty vote percentagesDemocratic House seatsGeneral election county winnersclosest governor's raceMinnesota GovernorRepublican house seatsTennessee Senate race… the whole venue