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kalshi historical data / elections / KXHAMILTONMAYOR
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Hamilton mayoral election winner, tick by tick.
Kalshi series KXHAMILTONMAYOR: order book and trades, 2026-09-27 → 2026-10-23.

The order-book and trade history of Kalshi's Hamilton mayoral election winner 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.

27 days2026-09-27 → 2026-10-23 · every day since its first · ~497 kB per day · 13 MB on disk · 13 open markets
pull KXHAMILTONMAYOR days →schemapricing

What a KXHAMILTONMAYOR 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.

~37 kB per KXHAMILTONMAYOR 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.

~416 kB per KXHAMILTONMAYOR day
Tradeskalshi_trades

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

~4 kB per KXHAMILTONMAYOR 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.

~41 kB per KXHAMILTONMAYOR day

KXHAMILTONMAYOR 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 Andrea Horwath win the 2026 Hamilton mayoral election?: Andrea HorwathKXHAMILTONMAYOR-26OCT26-AHORcloses 2027-10-26 14:00 UTC
Will David Mark Cherkewski win the 2026 Hamilton mayoral election?: David Mark CherkewskiKXHAMILTONMAYOR-26OCT26-CHERcloses 2027-10-26 14:00 UTC
Will David Harrison win the 2026 Hamilton mayoral election?: David HarrisonKXHAMILTONMAYOR-26OCT26-DHARcloses 2027-10-26 14:00 UTC
Will Ejaz Butt win the 2026 Hamilton mayoral election?: Ejaz ButtKXHAMILTONMAYOR-26OCT26-EBUTcloses 2027-10-26 14:00 UTC
Will Erin Janus win the 2026 Hamilton mayoral election?: Erin JanusKXHAMILTONMAYOR-26OCT26-EJANcloses 2027-10-26 14:00 UTC
Will Keanin Loomis win the 2026 Hamilton mayoral election?: Keanin LoomisKXHAMILTONMAYOR-26OCT26-KLOOcloses 2027-10-26 14:00 UTC
Will Kevin Walker win the 2026 Hamilton mayoral election?: Kevin WalkerKXHAMILTONMAYOR-26OCT26-KWALcloses 2027-10-26 14:00 UTC
Will Nathalie Xian Yi Yan win the 2026 Hamilton mayoral election?: Nathalie Xian Yi YanKXHAMILTONMAYOR-26OCT26-NYANcloses 2027-10-26 14:00 UTC
Will Paul Fromm win the 2026 Hamilton mayoral election?: Paul FrommKXHAMILTONMAYOR-26OCT26-PFROcloses 2027-10-26 14:00 UTC
Will Pamela Mitchell win the 2026 Hamilton mayoral election?: Pamela MitchellKXHAMILTONMAYOR-26OCT26-PMITcloses 2027-10-26 14:00 UTC
Will Rob Cooper win the 2026 Hamilton mayoral election?: Rob CooperKXHAMILTONMAYOR-26OCT26-RCOOcloses 2027-10-26 14:00 UTC
Will Sasha Austin win the 2026 Hamilton mayoral election?: Sasha AustinKXHAMILTONMAYOR-26OCT26-SAUScloses 2027-10-26 14:00 UTC

Coverage notes for KXHAMILTONMAYOR

  • 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 KXHAMILTONMAYOR 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 KXHAMILTONMAYOR-.
  • 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 KXHAMILTONMAYOR, every table, is about 15 MB. Bought for Kalshi, Starter ($29/mo) carries top of book, trades and the ticker for every series plus one series of your choice, KXHAMILTONMAYOR 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: KXHAMILTONMAYOR at full depth →L10: every series at 10 levelsL25: every series, 25 levelsfree sample day

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