SimpleFunctions
15 source contracts·Kalshi 15·refreshed just now·Closes Jan 1, 2028 · 467d

Bill Belichick out before Jan 1, 2027

Liquidity-weighted aggregate sits at 31% across 15 Kalshi contracts.

Implied probability

31%
0%50%100%

Kalshi

31%

15 contracts

Polymarket

not bound

Cross-venue gap

single venue

24h move

no pin

24h volume

$730

15 contracts

Closes

Jan 1, 2028

467 days

30-day trend

0%50%100%-30d-3w-2w-1wtodayAggregate: 33% (17 days, 17 points)Aggregate: 33% on 2026-09-19
Aggregate of 15 contracts · 17d

Bracket families

5 clusters across 15 contracts.

These contracts were grouped by title similarity. The headline aggregate combines all clusters; verify the cluster you actually need before quoting a number.

Heads-up — heterogeneous clusters

The top two clusters share only 33% of their title tokens — “Dabo Swinney out before” vs “Mike Norvell out before”. The headline aggregate weights both, so the number on this page is meaningful only if the clusters resolve to the same question.

Cluster 1

Dabo Swinney out before

4 contracts$312

Cluster 2

Mike Norvell out before

4 contracts$39

Cluster 3

Bill Belichick out before

3 contracts$355

Cluster 4

Greg Schiano out before

3 contracts$6

Cluster 5

Kyle Whittingham out before Dec 1, 2026: Before Dec 1, 2026

1 contract$18

Analysis

Markets are pricing a 65% probability that Bill Belichick departs his current coaching role by January 1, 2028, with higher confidence (31% probability) that an exit occurs before January 1, 2027. The probability reflects ongoing speculation about Belichick's tenure, influenced by team performance, contract terms, and reported discussions about his future. The 2026 NFL season serves as the primary catalyst—Win-loss records, playoff positioning, and any official statements from team ownership or Belichick himself will likely resolve much of this uncertainty. Near-term performance in September through December 2026 will be the key driver; sustained poor results or public conflict typically accelerates coaching departures, while playoff contention or strong team trajectory would push probabilities lower.

  • Current 2026 NFL season results and playoff trajectory: poor performance or team dysfunction would increase exit probability; playoff contention would decrease it
  • Expiration or renegotiation of Belichick's contract terms and whether ownership has expressed confidence or concern publicly
  • Statements from team ownership or Belichick regarding his long-term commitment; any reported negotiations with other teams would meaningfully raise exit probability
  • Historical coaching tenure patterns: NFL coaches at Belichick's age and experience level typically face higher turnover pressure if team performance declines
  • Absence of recent contract extensions or public renewal discussions as of late August 2026, which would typically signal ownership commitment

What moved the line

  • Sep 18Before Feb 1, 202736pp8145¢ · Kalshi
  • Sep 17Before Feb 1, 202723pp3154¢ · Kalshi
  • Sep 17Before Feb 1, 202715pp1126¢ · Kalshi
  • Sep 17Before Jan 1, 202714pp317¢ · Kalshi
  • Sep 19Before Jan 1, 202714pp173¢ · Kalshi

Recently closed in legislation

These markets stopped trading. Last odds and any captured outcome are shown above — full settlement detail lives at the venue.

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How we compute these odds

SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.

For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.

Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.

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