German state race flips, Senate odds surge toward Democrats

Two elections — one in Germany's north-east, one in Russia — dominated trading this week, while fresh Senate polling in the US drove the biggest sustained dollar volume in the window. A double eviction reshuffled the Big Brother board, and a winless start crushed Utah State's Pac-12 title hopes.

SPD snatches lead in German state race

AfD's implied probability of winning the Mecklenburg-Vorpommern Landtag collapsed 32 points this week after a fresh survey showed SPD edging ahead at 37% to AfD's 36%, the first time the Social Democrats have led in the state in months. The election falls on September 20, giving traders little time to be wrong — volume jumped 320% as the market repriced rapidly. SPD now sits as the narrow consensus favourite at 51.0%, though Kalshi prices the outcome a full point cheaper than Polymarket, leaving a modest cross-platform spread for a race this close to the wire.

Outcome	7 days ago	Now	Change
AfD	81.5%	49.5%	-32.0 pts

24h volume $256,768 · 2 platforms · 23 large trades totalling $114,363 (7d).

Compare live odds for Mecklenburg-Vorpommern Parliamentary Election Winner

United Russia priced for routine Duma win

With voting underway across Russia from September 18 to 20, United Russia has drifted up to 80.5% on a market that drew $34 million in total volume — by far the largest pool in this window. Critics and independent analysts have flagged the absence of genuine opposition on the ballot, and the market's rival, New People, sits at just 18.1% despite real-terms discontent over inflation and the ongoing war in Ukraine. The 3.1-point rise in United Russia's odds this week reflects the closing of any residual uncertainty as polling day arrived.

Outcome	7 days ago	Now	Change
United Russia (ER)	77.4%	80.5%	+3.1 pts

24h volume $2,516,930 · 1 platform · 48 large trades totalling $1,026,793 (7d).

Compare live odds for Which party will gain most seats in Russian Parliamentary Election?

Wyoming covers big against Central Michigan

The +31.50 spread outcome surged 86 points to 93.0% this week, signalling that traders have heavily priced Wyoming as a dominant winner by a very large margin in Saturday's game. Kalshi carries almost all of the meaningful liquidity here, with the main game market holding $202,170 against negligible volume on Polymarket and Gemini. Three large trades totalling $75,140 drove most of the move.

Outcome	7 days ago	Now	Change
+31.50	7.0%	93.0%	+86.0 pts

24h volume $201,696 · 4 platforms · 3 large trades totalling $75,140 (7d).

Compare live odds for Wyoming vs Central Michigan

Utah State's Pac-12 title odds evaporate after poor start

Utah State's implied probability of winning the Pac-12 Championship fell 22 points to just 2.1%, reflecting a winless 0–2 start that included a stunning season-opening loss to FCS opponent Idaho State — the first time the Aggies had lost to Idaho State since 2000. Boise State now leads the market at 46.5%, with Colorado State a distant second at 27.0%. A 23.5-point cross-platform spread on Colorado State between Kalshi and Polymarket US is an outlier worth tracking as the season develops.

Outcome	7 days ago	Now	Change
Utah State Aggies	24.1%	2.1%	-22.0 pts

24h volume $37,389 · 4 platforms.

Compare live odds for College Football Pac-12 Championship Winner — 2026

Yash Patel evicted in double eviction shake-up

Yash Patel's 21.3-point collapse to 1.0% follows his eviction by a 2-to-1 vote during the Week 10 double eviction, after Rick Devens won the Power of Veto and was pulled from the block, forcing Melody Morris to name Yash as a replacement nominee. With the finale weeks away and just five houseguests remaining, Rick Devens leads at 40.5% and Dee Valladares sits at 34.0%, with a tight 2.5-point cross-platform spread on both names between Kalshi and Polymarket.

Outcome	7 days ago	Now	Change
Yash Patel	22.3%	1.0%	-21.3 pts

24h volume $204,197 · 3 platforms.

Compare live odds for Big Brother Season 28 · Winner

Democrats extend Senate odds lead on strong polling

The Democratic Party's implied probability of taking the Senate rose 7.8 points this week to 59.5%, with traders responding to a run of favourable generic-ballot numbers — including a New York Times/Siena poll showing Democrats ahead by 8 points and a YouGov/Economist poll at D+12 among likely voters. Nate Silver's Silver Bulletin now gives Democrats a 59% chance of retaking the chamber, the highest of the cycle. Combined volume across Polymarket and Kalshi exceeds $13.8 million, reflecting how seriously money is treating this race.

Outcome	7 days ago	Now	Change
Democratic Party	51.7%	59.5%	+7.8 pts

24h volume $198,720 · 2 platforms · 27 large trades totalling $112,797 (7d).

Compare live odds for Which party will win the U.S. Senate? — In 2026

The takeaway

Two elections resolving within 48 hours and a US midterm race approaching its final stretch pulled capital toward political markets this window, while entertainment and sports events offered sharper single-event moves driven by real-world results rather than shifting forecasts.