The Prediction Markets

Market comparison

Pro Basketball Coach of the Year Winner

2 venues · 35 outcome rows · 30 comparable lines · event identity linked · 0 verified parity · active

30 outcomes · $109K reported volume

Observed 53s ago

Recorded venue end date: Aug 2, 2027

Polymarket

Open venue ↗

36 outcomes · $3K reported volume

Observed 53s ago

Recorded venue end date: Jul 1, 2027

Check settlement rules before comparing contracts. Matched outcomes may settle differently. These venues also report end dates more than 48 hours apart; event identity does not mean the contracts close or settle together. These are stored prices; record update times do not certify live quotes. Differences exclude fees and available size.

Known rule differences between venues

  • Both settle on the official league/organizer result for the named season; Kalshi's season is the ticker edition (KXNBA-27 = 2026-27) and Polymarket's is stated in the title or slug.
  • Season cancelled or not completed: Kalshi resolves per its rules (typically a fair price); Polymarket resolves to 'Other' or 50-50 depending on the event.
  • Polymarket lists placeholders ('Other', 'Team A') and closes eliminated outcomes early; only live named outcomes are linked.
  • Awards: Kalshi and Polymarket both settle on the official award announcement; ties or shared awards are handled differently (Kalshi per contract rules, Polymarket split).

A shared identity alone does not make a price difference executable.

Brian Keefe

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

3.0%

Bid 1.0% · Ask 3.0%

Brian Keefe

Open Kalshi ↗

Polymarket

3.5%

Bid 1.1% · Ask 5.9%

Brian Keefe

Open Polymarket ↗

Price difference 0.5 pp

Charles Lee

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

3.0%

Bid 2.0% · Ask 3.0%

Charles Lee

Open Kalshi ↗

Polymarket

4.8%

Bid 0.2% · Ask 9.3%

Charles Lee

Open Polymarket ↗

Price difference 1.8 pp

Chris Finch

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

7.0%

Bid 3.0% · Ask 7.0%

Chris Finch

Open Kalshi ↗

Polymarket

5.1%

Bid 0.3% · Ask 10.0%

Chris Finch

Open Polymarket ↗

Price difference 1.9 pp

Darko Rajaković

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

5.0%

Bid 5.0% · Ask 10.0%

Darko Rajaković

Open Kalshi ↗

Polymarket

11.9%

Bid 10.9% · Ask 13.0%

Darko Rajakovic

Open Polymarket ↗

Price difference 6.9 pp

David Adelman

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

1.0%

Bid 0.0% · Ask 2.0%

David Adelman

Open Kalshi ↗

Polymarket

5.0%

Bid 0.1% · Ask 9.9%

David Adelman

Open Polymarket ↗

Price difference 4.0 pp

Doug Christie

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

0.5%

Bid 0.0% · Ask 1.0%

Doug Christie

Open Kalshi ↗

Polymarket

3.7%

Bid 0.1% · Ask 7.3%

Doug Christie

Open Polymarket ↗

Price difference 3.2 pp

Dusty May

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

1.0%

Bid 1.0% · Ask 3.0%

Dusty May

Open Kalshi ↗

Polymarket

5.1%

Bid 1.1% · Ask 9.0%

Dusty May

Open Polymarket ↗

Price difference 4.0 pp

Erik Spoelstra

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

6.0%

Bid 5.0% · Ask 6.0%

Erik Spoelstra

Open Kalshi ↗

Polymarket

8.9%

Bid 6.9% · Ask 11.0%

Erik Spoelstra

Open Polymarket ↗

Price difference 2.9 pp

Ime Udoka

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

6.0%

Bid 3.0% · Ask 6.0%

Ime Udoka

Open Kalshi ↗

Polymarket

7.0%

Bid 7.0% · Ask 7.1%

Ime Udoka

Open Polymarket ↗

Price difference 1.0 pp

J.B. Bickerstaff

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

4.0%

Bid 3.0% · Ask 4.0%

J.B. Bickerstaff

Open Kalshi ↗

Polymarket

12.1%

Bid 11.1% · Ask 13.1%

J.B. Bickerstaff

Open Polymarket ↗

Price difference 8.1 pp

Jamahl Mosley

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

2.0%

Bid 1.0% · Ask 2.0%

Jamahl Mosley

Open Kalshi ↗

Polymarket

5.0%

Bid 1.1% · Ask 8.9%

Jamahl Mosley

Open Polymarket ↗

Price difference 3.0 pp

JJ Redick

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

5.0%

Bid 4.0% · Ask 5.0%

JJ Redick

Open Kalshi ↗

Polymarket

4.0%

Bid 1.0% · Ask 7.0%

JJ Redick

Open Polymarket ↗

Price difference 1.0 pp

Joe Mazzulla

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

5.0%

Bid 2.0% · Ask 5.0%

Joe Mazzulla

Open Kalshi ↗

Polymarket

5.9%

Bid 0.1% · Ask 11.6%

Joe Mazzulla

Open Polymarket ↗

Price difference 0.9 pp

Jordan Ott

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

2.0%

Bid 1.0% · Ask 2.0%

Jordan Ott

Open Kalshi ↗

Polymarket

5.0%

Bid 1.1% · Ask 8.9%

Jordan Ott

Open Polymarket ↗

Price difference 3.0 pp

Jordi Fernández

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

2.0%

Bid 1.0% · Ask 2.0%

Jordi Fernández

Open Kalshi ↗

Polymarket

5.4%

Bid 1.0% · Ask 9.8%

Jordi Fernandez

Open Polymarket ↗

Price difference 3.4 pp

Kenny Atkinson

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

2.0%

Bid 0.0% · Ask 2.0%

Kenny Atkinson

Open Kalshi ↗

Polymarket

5.5%

Bid 1.0% · Ask 9.9%

Kenny Atkinson

Open Polymarket ↗

Price difference 3.5 pp

Mark Daigneault

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

3.0%

Bid 2.0% · Ask 3.0%

Mark Daigneault

Open Kalshi ↗

Polymarket

5.1%

Bid 1.2% · Ask 9.0%

Mark Daigneault

Open Polymarket ↗

Price difference 2.1 pp

Micah Nori

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

6.0%

Bid 3.0% · Ask 6.0%

Micah Nori

Open Kalshi ↗

Polymarket

8.4%

Bid 0.2% · Ask 16.6%

Micah Nori

Open Polymarket ↗

Price difference 2.4 pp

Mike Brown

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

4.0%

Bid 0.0% · Ask 4.0%

Mike Brown

Open Kalshi ↗

Polymarket

6.8%

Bid 5.0% · Ask 8.6%

Mike Brown

Open Polymarket ↗

Price difference 2.8 pp

Mitch Johnson

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

3.0%

Bid 2.0% · Ask 3.0%

Mitch Johnson

Open Kalshi ↗

Polymarket

6.2%

Bid 1.4% · Ask 10.9%

Mitch Johnson

Open Polymarket ↗

Price difference 3.1 pp

Nick Nurse

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

6.0%

Bid 2.0% · Ask 6.0%

Nick Nurse

Open Kalshi ↗

Polymarket

7.4%

Bid 5.0% · Ask 9.9%

Nick Nurse

Open Polymarket ↗

Price difference 1.4 pp

Pro Basketball Coach of the Year: Will Hardy

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

17.0%

Bid 8.0% · Ask 17.0%

Pro Basketball Coach of the Year: Will Hardy

Open Kalshi ↗

Polymarket

11.3%

Bid 9.1% · Ask 13.4%

Will Hardy

Open Polymarket ↗

Price difference 5.8 pp

Quin Snyder

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

3.0%

Bid 2.0% · Ask 3.0%

Quin Snyder

Open Kalshi ↗

Polymarket

3.3%

Bid 0.2% · Ask 6.3%

Quin Snyder

Open Polymarket ↗

Price difference 0.3 pp

Rick Carlisle

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

7.0%

Bid 3.0% · Ask 7.0%

Rick Carlisle

Open Kalshi ↗

Polymarket

8.3%

Bid 6.1% · Ask 10.6%

Rick Carlisle

Open Polymarket ↗

Price difference 1.3 pp

Sean Sweeney

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

9.0%

Bid 8.0% · Ask 9.0%

Sean Sweeney

Open Kalshi ↗

Polymarket

5.2%

Bid 3.5% · Ask 6.9%

Sean Sweeney

Open Polymarket ↗

Price difference 3.8 pp

Steve Kerr

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

2.0%

Bid 0.0% · Ask 2.0%

Steve Kerr

Open Kalshi ↗

Polymarket

5.1%

Bid 0.4% · Ask 9.9%

Steve Kerr

Open Polymarket ↗

Price difference 3.1 pp

Taylor Jenkins

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

2.0%

Bid 0.0% · Ask 2.0%

Taylor Jenkins

Open Kalshi ↗

Polymarket

4.5%

Bid 0.1% · Ask 8.9%

Taylor Jenkins

Open Polymarket ↗

Price difference 2.5 pp

Tiago Splitter

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

2.0%

Bid 0.0% · Ask 2.0%

Tiago Splitter

Open Kalshi ↗

Polymarket

4.0%

Bid 0.2% · Ask 7.9%

Tiago Splitter

Open Polymarket ↗

Price difference 2.1 pp

Tuomas Iisalo

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

3.0%

Bid 2.0% · Ask 3.0%

Tuomas Iisalo

Open Kalshi ↗

Polymarket

5.9%

Bid 1.0% · Ask 10.9%

Tuomas Iisalo

Open Polymarket ↗

Price difference 2.9 pp

Tyronn Lue

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

1.0%

Bid 0.0% · Ask 2.0%

Tyronn Lue

Open Kalshi ↗

Polymarket

8.8%

Bid 5.2% · Ask 12.3%

Tyronn Lue

Open Polymarket ↗

Price difference 7.8 pp

Coach A

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

50.0%

Bid 0.0% · Ask 100.0%

Coach A · closed

Open Polymarket ↗

Coach B

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

50.0%

Bid 0.0% · Ask 100.0%

Coach B · closed

Open Polymarket ↗

Coach C

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

50.0%

Bid 0.0% · Ask 100.0%

Coach C · closed

Open Polymarket ↗

Coach D

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

50.0%

Bid 0.0% · Ask 100.0%

Coach D · closed

Open Polymarket ↗

Coach E

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

50.0%

Bid 0.0% · Ask 100.0%

Coach E · closed

Open Polymarket ↗

Prices are shown as percentages of a $1 payout. “pp” means percentage points. A dash means data is unavailable.