TOTAL VOLUME:
$134b
24H VOL:
$103,397,351
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,410,176,180
399,592
Markets across
30,097
events
MATCHED EVENTS:
2,622
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 27, 3:06 PM EST
Kalshi
This set of markets tracks how many unranked college football teams manage to defeat ranked opponents during a specific week of the season. The outcomes depend on the performance of lower-tier teams against their higher-ranked counterparts, reflecting potential surprises and upsets in the sport.
These markets resolve based on the number of unranked teams that defeat AP Top 25 ranked teams during Week 4 of the 2026-27 college football season. The AP Top 25 rankings used for determination are those published for Week 4; if no Week 4 poll is released before the games, the most recent poll available will be used. Each market corresponds to a specific threshold of upsets (from 1 to 5 unranked victories over Top 25 teams). If the number of such upsets meets or exceeds the threshold specified for a given market, that market resolves to Yes; otherwise, it resolves to No. All markets operate independently, allowing participants to speculate on different levels of upset activity within the same week.
On Kalshi, this market reflects trader sentiment about which unranked teams might pull off upsets in Week 4. Sportsbook odds, set by professional oddsmakers, often favor higher-ranked teams more strongly. Prediction markets can show sharper shifts if unexpected factors emerge, like key player injuries or weather conditions. Traders in this market may assign higher probabilities to upsets than traditional sportsbooks, especially when public perception diverges from actual team performance trends.
This market resolves around Sep 28, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The result is based on whether any unranked team pulls off a surprising win against a ranked opponent during Week 4, as reported by major sports news outlets.
Injuries to key players, last-minute coaching changes, or weather disruptions could shift this market sharply before Sep 28, 2026. High-profile matchups may also attract larger trading volumes, especially if polls or analysts release updated rankings that affect perceived upset probabilities. Any breaking news impacting team performance can cause rapid price swings.