What is the current probability?

As of the latest cache refresh, the YES contract trades at 100%, implying a 100% chance of YES.

When does this market close?

This market closes on Nov 02, 2026. After close the venue settles the contract based on the official resolution source.

K KalshiSports

Katie Boulter

Settles Nov 02, 2026 (12d) All outcomes: Boulter vs Sakatsume

chance of YES100% +36.0pp in 24h

Price range (41h)

49–95%

24h volume

803.4K

$1 contracts

Open interest

284.7K

contracts outstanding

Bid / ask

$342K

97% on YES

hourly, 41h

Line: hourly closing YES price (= implied probability). Bars: contracts traded.

Open on Kalshi

We don't execute trades; odds are aggregated from public data.

≥ $1K · 14 days

When	Side	Price	Contracts	Size
Oct 20, 1:05 AM ET	YES	98¢	20,182	$20K
Oct 20, 1:04 AM ET	YES	99¢	3,998	$4K
Oct 20, 1:03 AM ET	YES	97¢	9,679	$9K
Oct 20, 1:03 AM ET	YES	96¢	1,115	$1K
Oct 20, 1:02 AM ET	YES	96¢	2,374	$2K
Oct 20, 1:02 AM ET	YES	96¢	1,820	$2K
Oct 20, 1:02 AM ET	YES	96¢	8,334	$8K
Oct 20, 1:02 AM ET	YES	96¢	1,836	$2K
Oct 20, 1:01 AM ET	YES	96¢	4,216	$4K
Oct 20, 1:01 AM ET	YES	96¢	2,077	$2K

Orders stitched together from Kalshi's anonymous fills.