TOTAL VOLUME:

$154.4b

24H VOL:

$245,801,863

24H TRANSACTIONS:

2,984,028,936

OPEN INTEREST:

$1,902,097,102

417,059

Markets across

40,178

events

MATCHED EVENTS:

4,415

PLATFORM COVERAGE:

5

Polymarket:

37%

VS.

Kalshi:

63%

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MLB Postseason: RBI Leader
kalshi
polymarket

Who will lead MLB Postseason in RBI?

Volume:
$36,537

Ben Rice

all

2 markets

Polymarket

Kalshi

consensus

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Oct 29, 2026

Closed: Oct 29, 4:25 AM EST

polymarket

Polymarket

View
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
polymarket

Ben Rice

View
100%
68%
Yes 100¢No 0¢
—
N/A
$1,553
N/A
N/A
N/A
1w 6d 5h
Yes
kalshi

Ben Rice

View
33%
11%
Yes 33¢No 67¢
—
N/A
$7,956
N/A
N/A
$4,064
4w 15h
ResolvedResult not available
kalshi

Jackson Chourio

View
33%
52%
Yes 33¢No 67¢
—
N/A
$4,482
N/A
N/A
$2,823
4w 15h
ResolvedResult not available
kalshi

William Contreras

View
33%
5%
Yes 33¢No 67¢
—
N/A
$3,806
N/A
N/A
$1,985
4w 15h
ResolvedResult not available
polymarket

William Contreras

View
0%
5%
Yes 0¢No 100¢
—
N/A
$1,675
N/A
N/A
N/A
1w 6d 5h
No
polymarket

Jake Bauers

View
0%
4%
Yes 0¢No 100¢
—
N/A
$4,255
N/A
N/A
N/A
1w 6d 5h
No
kalshi

Jo Adell

View
0%
Yes 0¢No 100¢
—
N/A
$1,733
N/A
N/A
$679
4w 15h
No
polymarket

Liam Hicks

View
0%
18%
Yes 0¢No 100¢
—
N/A
$1,677
N/A
N/A
N/A
1w 6d 5h
No
polymarket

Jo Adell

View
0%
20%
Yes 0¢No 100¢
—
N/A
$1,530
N/A
N/A
N/A
1w 6d 5h
No
kalshi

José Ramírez

View
0%
Yes 0¢No 100¢
—
N/A
$978
N/A
N/A
$629
4w 15h
No
polymarket

Yandy Díaz

View
0%
Yes 0¢No 100¢
—
N/A
$823
N/A
N/A
N/A
1w 6d 5h
No
kalshi

Yandy Díaz

View
0%
1%
Yes 0¢No 100¢
—
N/A
$316
N/A
N/A
$287
4w 15h
No
polymarket

Colson Montgomery

View
0%
26%
Yes 0¢No 100¢
—
N/A
$639
N/A
N/A
N/A
1w 6d 5h
No
kalshi

Freddie Freeman

View
0%
4%
Yes 0¢No 100¢
—
N/A
$446
N/A
N/A
$441
4w 15h
No
polymarket

Brice Turang

View
0%
Yes 0¢No 100¢
—
N/A
$383
N/A
N/A
N/A
1w 6d 5h
No
kalshi

Brice Turang

View
0%
Yes 0¢No 100¢
—
N/A
$224
N/A
N/A
$224
4w 15h
No
polymarket

Jonathan Aranda

View
0%
4%
Yes 0¢No 100¢
—
N/A
$365
N/A
N/A
N/A
1w 6d 5h
No
kalshi

Jonathan Aranda

View
0%
Yes 0¢No 100¢
—
N/A
$312
N/A
N/A
$160
4w 15h
No
kalshi

Junior Caminero

View
0%
Yes 0¢No 100¢
—
N/A
$304
N/A
N/A
$261
4w 15h
No
polymarket

Junior Caminero

View
0%
5%
Yes 0¢No 100¢
—
N/A
$278
N/A
N/A
N/A
1w 6d 5h
No
kalshi

Shohei Ohtani

View
0%
Yes 0¢No 100¢
—
N/A
$272
N/A
N/A
$272
4w 15h
No
polymarket

Shohei Ohtani

View
0%
9%
Yes 0¢No 100¢
—
N/A
$232
N/A
N/A
N/A
1w 6d 5h
No
polymarket

Drake Baldwin

View
0%
7%
Yes 0¢No 100¢
—
N/A
$208
N/A
N/A
N/A
1w 6d 5h
No
polymarket

Ozzie Albies

View
0%
Yes 0¢No 100¢
—
N/A
$160
N/A
N/A
N/A
1w 6d 5h
No
polymarket

Willson Contreras

View
0%
26%
Yes 0¢No 100¢
—
N/A
$136
N/A
N/A
N/A
1w 6d 5h
No
Total markets: 25 of 177

Description

This prediction group asks which MLB player will lead the 2026 postseason in Runs Batted In (RBI). Markets exist for individual players as well as an 'Other' option, covering anyone not explicitly listed. The postseason includes the Wild Card Series, Division Series, League Championship Series, and World Series.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: Tie-breaking procedures and cancellation clauses differ between platforms, potentially impacting resolution outcomes.Hero tip: Be mindful of the tie-breaking rules on each platform. Kalshi's lack of a tiebreaker could lead to ambiguity if multiple players are tied for the lead in RBIs.

Critical divergence points:

  • Polymarket: Resolves ties in RBI with slugging percentage. If a tie persists, all tied player markets resolve to 'No' and 'Other' resolves to 'Yes'. Cancels markets if the World Series isn't completed by November 15, 2026, 11:59 PM ET.
  • Kalshi: Resolves to the player with the most RBI. No tiebreaker is specified, and no cancellation clause exists if the postseason is incomplete.
Our PredictionHero Resolution Divergence Alerts (RDA) are there to help users identify potential differences across platforms. They do not replace or supersede the official rules and description of any prediction market. Users are solely responsible for reviewing and understanding the applicable rules and resolution criteria before placing any trade or bet. If you notice a potential inconsistency, discrepancy, or error in an alert, please report it to our team so we can review and improve the accuracy of our data.

Polymarket

This market will resolve in favor of the player that finishes the 2026 MLB Postseason with the most RBI. In the event of a tie for the most RBI, this market will resolve in favor of the tied player with the higher slugging percentage across the 2026 MLB Postseason. If a tie still persists, each tied player's market will resolve to "No" and the "Other" market will resolve to "Yes". Only RBI in 2026 MLB Postseason games will count toward this market. The 2026 MLB Postseason comprises the Wild Card Series, the Division Series, the League Championship Series, and the World Series. Regular season games, exhibition games, and any tiebreaker or "Game 163" will not be considered part of the 2026 MLB Postseason. The "Other" market will resolve to "Yes" if the player who leads is not among the listed players. If the 2026 MLB Postseason is cancelled, or the World Series has not concluded by November 15, 2026, 11:59 PM ET, every named player's market will resolve to "No" and the "Other" market will resolve to "Yes". The resolution source for this market will be official information from MLB; however, a consensus of credible reporting may also be used.

Kalshi

The market resolves based on the player who records the most RBIs in the 2026 MLB postseason. Only statistics from playoff games are considered; regular-season performance is irrelevant. If a participant does not play any playoff games due to injury, suspension, retirement, or other reasons, the market resolves as No for that participant. In the event of a tie where the league does not declare a single winner, all tied participants receive a proportional payout. Any statistical corrections are only applied if made before the market expiration date. The markets are independent, with each participant’s outcome determined solely by whether they personally lead the league in RBIs during the postseason.

Frequently asked questions

Prices on Polymarket and Kalshi can diverge for several reasons. Polymarket and Kalshi can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Each platform has its own user base, trading dynamics, and liquidity levels, leading to differing opinions and price discovery. For example, Polymarket might attract more casual bettors, while Kalshi could be favored by more sophisticated traders. Additionally, differing trading fees and platform-specific rules can influence price movements. The volume traded on each platform – currently $36,537 overall – also plays a role; lower volume can lead to greater price volatility and divergence.

Numerous factors could influence trading activity in this market. Player injuries are a major catalyst, as the absence of a key hitter could significantly shift probabilities. Strong or poor performances during the regular season leading up to the postseason will also impact trader sentiment. Major trades involving potential RBI leaders could also cause significant price movement. Unexpected news regarding player health, team dynamics, or even weather conditions affecting key games could all contribute to shifts in this market’s odds. Any developments impacting a player’s playing time or expected role will likely be reflected in trading volume.