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Diamond Duke

Diamond Duke

Sporty Studios
4.1 ★★★★★★★★★★ 693K reviews 100K+ Downloads 18+ Rated for 18+
Contains ads In-app purchases
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About this app

How to play Diamond Duke

Two other leagues, Major League Baseball and the National Hockey League, have each signed a Memorandum of Understanding with the CFTC that allows participating teams to partner with the operators.

“We don’t think we have to be first in this, we feel like we’re going to be right,” Goodell said. “The best thing to do is be patient and make sure you keep the integrity of the game number one.”

Matt is primarily responsible for long-form feature coverage on complex sports betting scandals. He also provides coverage on finance, M&A and other technological developments.

About Diamond Duke

The consumer battle in prediction markets is increasingly visible. Kalshi, Polymarket and newer entrants are expanding their sports products, while DraftKings, Flutter, Robinhood and a host of others are investing in exchanges, distribution and market-making capabilities.

In fact, behind those brands, a whole new sector is taking shape. Data and streaming suppliers, specialist market makers and technology companies are quickly invading the space.

The investment banking and capital markets firm Jefferies said in a September report that sports had become prediction markets’ “most important liquidity driver”, with combo and parlay-style contracts accounting for an increasing share of activity. But the analysts cautioned that prediction markets are scale businesses with relatively low revenue yields, leaving their economics dependent on sustained liquidity, engagement and trading activity.

About Diamond Duke

Still, Kalshi had a nine-fold lead over Polymarket, its next closest rival. Polymarket, meanwhile, led the group with 762,000 app downloads, edging Kalshi, DraftKings and FanDuel in the category. The downloads represented a 13,509% weekly increase and 25% of total category downloads, Polymarket wrote in a statement.

Across the market, operators delivered high double-digit gains compared with Labor Day weekend, which featured a full slate of college football games but no NFL contests. Two operators, DraftKings and Underdog each saw triple-digit growth, delivering weekly increases of 125% and 119%, respectively. Three others, Polymarket, Crypto.com and Novig, saw gains of at least 30%, led by Polymarket with a weekly increase of 46%.

One interesting nugget surrounds weekend figures at Kalshi, where volume on Sunday only surpassed prior daily activity by $34 million, BofA data shows. Typically, Sunday volume for the quarter dwarfs that of College Football Saturdays due to the voracious demand for NFL offerings. BofA analyst Shaun Kelley attributes the irregularity to the possibility that Kalshi is “over indexing” on college sports.

App info

Updated onAug 20, 2026
Size67 MB
Installs100K++
Current Version9.7.4
Requires Android5.0 and up
Content RatingRated for 18+
Interactive ElementsUsers Interact
Released onJan 27, 2022
Offered bySporty Studios
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