Before the 2027-28 season · Will Matthew Stafford announce his retirement before the 202
Before the 2027-28 season is priced at 65¢ on Kalshi. Current book: 15¢ bid, 96¢ ask, 81¢ spread. This outcome ranks #1 of 4 inside Will Matthew Stafford announce his retirement before the 202.
Price history
65¢ current
+50¢Contract brief
If Matthew Stafford announces his retirement from the NFL before the 2027-28 NFL season start date, then the market resolves to Yes.
Outcome
Before the 2027-28 season
Rank
#1 of 4
Leader
Before the 2027-28 season 15¢
Range
1¢-15¢
Family volume
$0
Identifier
KXNFLRETIRE-MSTAFFORD9-2728
Sep 8, 2026, 5:08 PM UTC · 18m ago
Implied probability
Bid
15¢
Ask
96¢
Spread
81¢
Reported volume
$223
Family rank
#1 of 4
4 outcomes · Will Matthew Stafford announce his retirement before the 202
Closes
Sep 30, 2027
Family volume
$0
Orderbook snapshot
15 / 96¢
Contract terms
What resolves this market.
YES condition
If Matthew Stafford announces his retirement from the NFL before the 2027-28 NFL season start date, then the market resolves to Yes.
Venue
Kalshi
Closes
Sep 30, 2027
Identifier
KXNFLRETIRE-MSTAFFORD9-2728
Event family
Will Matthew Stafford announce his retirement before the 202.
The same race as a probability stack: rank, volume, and where this contract sits against the other outcomes.
Total volume
$0
Outcomes
4
Highest price
Before the 2027-28 season 15¢
Current share
—
Indicators
Yield, cliff risk, volatility, and regime.
Regime
neutral
Score
0.432
Observability
medium
Event type
sports
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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.