SimpleFunctions
8 source contracts·Kalshi 8·refreshed just now·Closes Nov 16, 2026 · 80d

Will Viola Cheptoo win the New York City Marathon Women's Open Division

Liquidity-weighted aggregate sits at 11% across 8 Kalshi contracts.

Implied probability

11%
0%50%100%

Kalshi

11%

8 contracts

Polymarket

not bound

Cross-venue gap

single venue

24h move

no pin

24h volume

$0

8 contracts

Closes

Nov 16, 2026

80 days

30-day trend

0%50%100%-30d-3w-2w-1wtodayAggregate: 25% (2 days, 2 points)Aggregate: 25% on 2026-08-27
Aggregate of 8 contracts · 2d

Bracket families

8 clusters across 8 contracts.

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

Cluster 1

Will Hellen Obiri win the New York City Marathon Women's Open Division

1 contract$0

Cluster 2

Will Benson Kipruto win the New York City Marathon Men's Open Division

1 contract$0

Cluster 3

Will Deresa Geleta win the New York City Marathon Men's Open Division

1 contract$0

Cluster 4

Will CyBrian Kotut win the New York City Marathon Men's Open Division

1 contract$0

Cluster 5

Will Abdi Nageeye win the New York City Marathon Men's Open Division

1 contract$0

Cluster 6

Will Geoffrey Kamworor win the New York City Marathon Men's Open Division

1 contract$0

Cluster 7

Will Huseydin Mohamed Esa win the New York City Marathon Men's Open Division

1 contract$0

Cluster 8

Will Andreas Almgren win the New York City Marathon Men's Open Division

1 contract$0

Analysis

This 11% probability reflects the market's assessment that Viola Cheptoo has roughly a 1-in-9 chance of winning the 2026 New York City Marathon women's division. The probability reflects her competitive standing relative to other elite distance runners who are expected to compete. Market pricing for marathon outcomes typically depends on recent race performance, marathon-specific experience, course history, and field composition. The primary catalyst that would resolve this uncertainty is the race itself, scheduled for early November 2026, which will determine the actual winner. Between now and then, factors like injury announcements, tune-up race results, or official field confirmations could shift probabilities as new information about competitor health and readiness emerges.

  • Viola Cheptoo's finishing times and placements in marathon competitions during 2024-2026 relative to other women elite runners expected to compete in NYC
  • Recent performance trends in half-marathons or 10K races that might indicate current fitness level and form
  • Confirmation of the final elite women's field and any withdrawals or additions of competitors between now and November 2026
  • Historical data on how frequently runners with similar personal records and recent form win major marathons
  • Course-specific factors such as whether Cheptoo has previously run the NYC Marathon course and how her performance compared

Recently closed in general

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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