▌tickfoundry
capture livesign inget the data →
kalshi historical data / sports / KXATPCHALLENGERDOUBLES
§sports

ATP Challenger Doubles Match, tick by tick.
Kalshi series KXATPCHALLENGERDOUBLES: order book and trades, 2026-09-28 → 2026-10-23.

The order-book and trade history of Kalshi's ATP Challenger Doubles Match 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.

24 days2026-09-28 → 2026-10-23 · 2 of 26 days without a book · ~48 MB per day · 1.1 GB on disk · 22 open markets
pull KXATPCHALLENGERDOUBLES days →schemapricing

What a KXATPCHALLENGERDOUBLES day contains

Four parquet files per day, every market of the series in each. Sizes are this series' own averages over its 24 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.

~3 MB per KXATPCHALLENGERDOUBLES 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.

~45 MB per KXATPCHALLENGERDOUBLES day
Tradeskalshi_trades

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

~226 kB per KXATPCHALLENGERDOUBLES 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.

~723 kB per KXATPCHALLENGERDOUBLES day

KXATPCHALLENGERDOUBLES 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.

Nicolas Ifi / Cedric Stanke wins: Nicolas Ifi / Cedric StankeKXATPCHALLENGERDOUBLES-26OCT21IFISTARECSIN-IFISTAcloses 2026-11-04 08:00 UTC
Dominik Recek / Daniel Siniakov wins: Dominik Recek / Daniel SiniakovKXATPCHALLENGERDOUBLES-26OCT21IFISTARECSIN-RECSINcloses 2026-11-04 08:00 UTC
Jacopo Bilardo / Giorgio Ricca wins: Jacopo Bilardo / Giorgio RiccaKXATPCHALLENGERDOUBLES-26OCT21HOWMACBILRIC-BILRICcloses 2026-11-04 09:10 UTC
Matthew Howse / James Mackinlay wins: Matthew Howse / James MackinlayKXATPCHALLENGERDOUBLES-26OCT21HOWMACBILRIC-HOWMACcloses 2026-11-04 09:10 UTC
Juan Jose Bianchi / Jakub Vrba wins: Juan Jose Bianchi / Jakub VrbaKXATPCHALLENGERDOUBLES-26OCT21BIAVRBDEVAS-BIAVRBcloses 2026-11-04 10:20 UTC
Alessio de Bernardis / Jacopo Vasami wins: Alessio de Bernardis / Jacopo VasamiKXATPCHALLENGERDOUBLES-26OCT21BIAVRBDEVAS-DEVAScloses 2026-11-04 10:20 UTC
Simone Agostini / Riccardo Perin wins: Simone Agostini / Riccardo PerinKXATPCHALLENGERDOUBLES-26OCT21AGOPERRIBVOL-AGOPERcloses 2026-11-04 11:30 UTC
Michele Ribecai / Gabriele Volpi wins: Michele Ribecai / Gabriele VolpiKXATPCHALLENGERDOUBLES-26OCT21AGOPERRIBVOL-RIBVOLcloses 2026-11-04 11:30 UTC
Axel Herberg Amoros / Alex Marti Pujolras wins: Axel Herberg Amoros / Alex Marti PujolrasKXATPCHALLENGERDOUBLES-26OCT21HERMARNANROS-HERMARcloses 2026-11-04 15:20 UTC
Mattia Nannelli / Leonardo Rossi wins: Mattia Nannelli / Leonardo RossiKXATPCHALLENGERDOUBLES-26OCT21HERMARNANROS-NANROScloses 2026-11-04 15:20 UTC
Ozan Baris / Kenta (2004) Miyoshi wins: Ozan Baris / Kenta (2004) MiyoshiKXATPCHALLENGERDOUBLES-26OCT22BARMIYDEBMAR-BARMIYcloses 2026-11-05 19:30 UTC
Gabriel Debru / Igor Marcondes wins: Gabriel Debru / Igor MarcondesKXATPCHALLENGERDOUBLES-26OCT22BARMIYDEBMAR-DEBMARcloses 2026-11-05 19:30 UTC

Coverage notes for KXATPCHALLENGERDOUBLES

  • 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 KXATPCHALLENGERDOUBLES 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 KXATPCHALLENGERDOUBLES-.
  • 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 KXATPCHALLENGERDOUBLES, every table, is about 1.4 GB. Bought for Kalshi, Starter ($29/mo) carries top of book, trades and the ticker for every series plus one series of your choice, KXATPCHALLENGERDOUBLES 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: KXATPCHALLENGERDOUBLES 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