Pro Baseball · 2027 Regular Season Start Date

Kalshi Sports › MLB Closes Jul 12, 2027 · $50 today · $48.1K traded · $30.1K at stake · prices read 2 h ago

The odds

May 7, 2027even chance by

Before Mar 25, 202723%▲ 1
Before Apr 1, 202731%
Before Apr 30, 202746%▼ 2
Before May 31, 202766%▲ 6
Before Jul 13, 202783%▼ 2

How the odds have moved

Before Mar 25, 2027: 23% on Oct 20, 23% now.

Each outcome's chance over time on Kalshi. The dots along the bottom are headlines about its subject: point at one to read it.

Every outcome

Outcome	Chance	Day	Bid	Ask	Pays	Contracts
Before Mar 25, 2027	23%	▲ 1	21¢	32¢	$3.13	8.5K
Before Apr 1, 2027	31%		29¢	32¢	$3.13	10.8K
Before Apr 30, 2027	46%	▼ 2	43¢	48¢	$2.08	12.1K
Before May 31, 2027	66%	▲ 6	61¢	83¢	$1.20	8.8K
Before Jul 13, 2027	83%	▼ 2	66¢	79¢	$1.27	37.9K

"Pays" is what a $1 stake returns if that outcome happens, at the price shown (before any fees). Bid and ask are the best prices to sell and buy "Yes".

The news: Pro Baseball, Start Date

Search ›

No recent headlines name this market's subject.

Related markets

All mlb ›

Sports › MLB

Milwaukee Brewers @ Tampa Bay Rays

Rays53%

Brewers47%

Sports › NFLFinal 17-23 · VFT 1:54'

Commanders vs. 49ers

Commanders<1%▼ 21

49ers>99%▲ 21

Sports › NBAFinal 106-100 · VFT 01:07'

76ers vs. Knicks

76ers>99%▲ 61

Knicks<1%▼ 61

Sports › NBAFinal 116-104 · VFT 01:56'

Thunder vs. Spurs

Thunder>99%▲ 51

Spurs<1%▼ 51

Sports › SoccerFinal 4-2 · VFT 84'

Paris Saint-Germain FC vs. FC Barcelona

Paris Saint-Germain FC>99%▲ 60

Draw<1%▼ 20

FC Barcelona<1%▼ 40

Sports › NBAFinal 113-121 · VFT 05:10'

Odds are traders' prices on Kalshi, Polymarket, ForecastEx and Crypto.com, not forecasts by 4Conservative. Prices read from the venues just now. Prices may be delayed. Money traded on Kalshi and ForecastEx is estimated from contracts. Not betting or investment advice.

About this market

VenueKalshi

Settles onFox Sports, Semafor, ABC

Trading closesJul 12, 2027 11:59 PM ET

Traded$48.1K (78,252 contracts)

Today$50

This week$48.1K

At stake$30.1K

Followed here sinceOct 19, 2026

The rules

If the first game in the 2027 MLB regular season has taken place prior to Mar 25, 2027, then the market resolves to Yes.

The full rules are on the market's page at Kalshi.

Reading the odds

A prediction market trades contracts that pay $1 if something happens. Its price is the market's chance: a contract at 62¢ means traders give it 62%. Each number here is the midpoint between the best bid and offer, or the last trade when they are more than ten cents apart.

For a question with many answers (who wins, which range a number lands in), the chances are scaled to add up to 100%. A price ladder ("above 4.25%, above 4.50% ...") gives a whole distribution: its median is where traders see an even chance either way.

Kalshi is a U.S. exchange regulated by the CFTC; its money is counted in contracts, shown here as dollars at their price. Polymarket counts dollars. ForecastEx is Interactive Brokers' exchange, regulated by the CFTC; its contracts too are shown as dollars at their price. Crypto.com lists its markets on Crypto.com | Derivatives North America, a U.S. exchange regulated by the CFTC; it reports the dollars traded. Where more than one asks the same question, each is shown, never averaged.

Prefer betting odds? Switch to American (+150) or decimal (2.50) odds at the top of the page.

Prediction-market prices are what traders pay for each outcome on Kalshi, Polymarket, ForecastEx and Crypto.com, read as the market's implied chance. They are not forecasts by 4Conservative, can move fast and can be wrong; they are read every few minutes and may be delayed. Money traded on Kalshi and ForecastEx is estimated from contracts at their price. News comes from the 4Conservative index; prices of stocks, rates and coins from 4Conservative Finance. Nothing here is betting, financial or investment advice. Terms of use.

Install