TOTAL VOLUME:

$134.1b

24H VOL:

$133,388,117

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,436,095,462

405,232

Markets across

30,526

events

MATCHED EVENTS:

2,693

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Number of Series Upsets in the 1st Round
kalshi

Number of Series Upsets in the 1st Round

Volume:
$35,742

At least 2 series upsets

 - Kalshi

At least 2 series upsets - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved May 4, 2026

Closed: May 3, 11:28 AM EST

kalshi

Kalshi

View
Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

At least 2 series upsets

View
100%
Yes 100¢No 0¢
1¢
N/A
$12,518
N/A
N/A
$6,210
Settled
Yes
kalshi

At least 1 series upset

View
100%
Yes 100¢No 0¢
1¢
N/A
$7,921
N/A
N/A
$3,144
Settled
Yes
kalshi

At least 3 series upsets

View
0%
Yes 0¢No 100¢
1¢
N/A
$9,314
N/A
N/A
$5,176
Settled
No
kalshi

At least 4 series upsets

View
0%
Yes 0¢No 100¢
1¢
N/A
$3,755
N/A
N/A
$3,392
Settled
No
kalshi

At least 5 series upsets

View
0%
Yes 0¢No 100¢
1¢
N/A
$2,234
N/A
N/A
$2,110
Settled
No
Total markets: 5

Description

During the 2026 Pro Basketball Playoffs first round, teams compete in playoff series where a lower-seeded or underdog team defeats a higher-seeded or favored team. The event tracks whether upsets occur during these early playoff matchups.