Gate News reports that on April 3, Polymarket announced it has reached an exclusive prediction market partnership with Spain’s La Liga. La Liga becomes the first major European football league to partner with a prediction market platform. Following the agreement, official match prediction markets for teams such as Real Madrid and FC Barcelona will be available exclusively on Polymarket.

The U.S. Commodity Futures Trading Commission will consider the views of the sports leagues to assess the risks of predictive market contracts. The National Football League (NFL) requires the platform to tighten trading rules to prevent contracts that could be manipulated from being listed, in order to protect the fairness of the games. The CFTC Chair said the league has unique expertise in identifying manipulation risks.

The U.S. Commodity Futures Trading Commission and Major League Baseball have signed a memorandum of understanding to strengthen the protection of professional baseball events, prevent market fraud and manipulation, and improve the integrity and resilience of prediction markets.

Major League Baseball has reached a $300 million partnership agreement with prediction market platform Polymarket, aimed at enhancing transaction transparency and compliance for sporting events, marking an important signal of support for prediction markets in the sports industry. The agreement includes data sharing and market integrity mechanisms, though it faces state legal risks.

Gate News reported that on March 19, prediction market platform Polymarket became the exclusive prediction market partner for Major League Baseball (MLB). Both parties also signed an information sharing agreement.

Gate News reported that on March 19, Polymarket announced that MLB (Major League Baseball) has designated Polymarket as its exclusive prediction market trading partner. The collaboration will enable fans to trade MLB-related event contracts on the platform, including game outcomes, player performance, and other content.

On Polymarket, an account placed a $100,000 wager predicting Gen.G to win in the League of Legends International Wildcards Group Stage, with odds exceeding 74%. Gen.G defeated JDG 3:0 in the first round, while LYON defeated LOUD 3:2.

Gate News reports that on March 17, on-chain data monitoring showed that a newly created wallet address wagered $100,000 betting on Sporting Portugal to defeat Bodø/Glimt, with Sporting Portugal currently having a 66% chance of winning. This match is the second leg of the 2025-26 UEFA Champions League Round of 16, with Sporting Portugal hosting the season's biggest dark horse, Bodø/Glimt, at home. In the first leg, Bodø/Glimt won decisively 3-0, and Sporting Portugal must win by at least 3 goals to overturn the deficit and advance, while Bodø/Glimt only needs to remain unbeaten to make history by reaching the Champions League quarter-finals for the first time.

In the Polymarket "UEFA Champions League Winner" prediction market, one account heavily bet $2.3 million, predicting Atalanta will not win the championship, with total bets reaching $3.1 million. The event contract trading volume has exceeded $287 million.

On March 16th, in the League of Legends International Pioneer Tournament group stage, team BLG defeated BFX with a total trading volume of 8.02 million USD. Accounts avenger and CryptoRED respectively made profits of 752,540 and 313,340 USD by betting on BLG's victory. The event featured 8 teams competing in a BO5 format.