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kalshi historical data / sports / KXMLBWSMVP
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Pro Baseball Championship MVP, tick by tick.
Kalshi series KXMLBWSMVP: order book and trades, 2026-09-28 → 2026-10-23.

The order-book and trade history of Kalshi's Pro Baseball Championship MVP 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.

26 days2026-09-28 → 2026-10-23 · every day since its first · ~5 MB per day · 142 MB on disk · 40 open markets
pull KXMLBWSMVP days →schemapricing

What a KXMLBWSMVP 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.

~558 kB per KXMLBWSMVP 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.

~4 MB per KXMLBWSMVP day
Tradeskalshi_trades

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

~58 kB per KXMLBWSMVP 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.

~443 kB per KXMLBWSMVP day

KXMLBWSMVP 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 Aaron Ashby win Pro Baseball Championship Series MVP?: Aaron AshbyKXMLBWSMVP-26-AASHBY26closes 2026-12-08 15:00 UTC
Will Abner Uribe win Pro Baseball Championship Series MVP?: Abner UribeKXMLBWSMVP-26-AURIBE45closes 2026-12-08 15:00 UTC
Will Andrew Vaughn win Pro Baseball Championship Series MVP?: Andrew VaughnKXMLBWSMVP-26-AVAUGHN28closes 2026-12-08 15:00 UTC
Will Bryan Baker win Pro Baseball Championship Series MVP?: Bryan BakerKXMLBWSMVP-26-BBAKER47closes 2026-12-08 15:00 UTC
Will Brice Turang win Pro Baseball Championship Series MVP?: Brice TurangKXMLBWSMVP-26-BTURANG2closes 2026-12-08 15:00 UTC
Will Chase DeLauter win Pro Baseball Championship Series MVP?: Chase DeLauterKXMLBWSMVP-26-CDELAUTER24closes 2026-12-08 15:00 UTC
Will Cedric Mullins win Pro Baseball Championship Series MVP?: Cedric MullinsKXMLBWSMVP-26-CMULLINS31closes 2026-12-08 15:00 UTC
Will Cooper Pratt win Pro Baseball Championship Series MVP?: Cooper PrattKXMLBWSMVP-26-CPRATT87closes 2026-12-08 15:00 UTC
Will Chandler Simpson win Pro Baseball Championship Series MVP?: Chandler SimpsonKXMLBWSMVP-26-CSIMPSON14closes 2026-12-08 15:00 UTC
Will Cade Smith win Pro Baseball Championship Series MVP?: Cade SmithKXMLBWSMVP-26-CSMITH36closes 2026-12-08 15:00 UTC
Will Christian Yelich win Pro Baseball Championship Series MVP?: Christian YelichKXMLBWSMVP-26-CYELICH22closes 2026-12-08 15:00 UTC
Will DL Hall win Pro Baseball Championship Series MVP?: DL HallKXMLBWSMVP-26-DHALL37closes 2026-12-08 15:00 UTC

Coverage notes for KXMLBWSMVP

  • 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 KXMLBWSMVP 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 KXMLBWSMVP-.
  • 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 KXMLBWSMVP, every table, is about 164 MB. Bought for Kalshi, Starter ($29/mo) carries top of book, trades and the ticker for every series plus one series of your choice, KXMLBWSMVP 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: KXMLBWSMVP at full depth →L10: every series at 10 levelsL25: every series, 25 levelsfree sample day

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