SimpleFunctions
Winner-take-all answer·9 source contracts·Kalshi 9·refreshed just now·Closes Jul 21, 2026 · 8d

Will the distance of the longest home run be at least 485 feet at the 2026 Home Run Derby

Leader sits at 57% across 9 bound outcomes, runner-up at 49%. This is a winner-take-all market — the headline is the leader’s price, not an arithmetic mean.

Leader probability

57%

485+ feet

runner-up 49¢leader 57¢

Outcomes

9

winner-take-all

Runner-up

49¢

490+ feet

Spread

8pp

contested

24h volume

$19K

liquid

Closes

Jul 21, 2026

8 days

Venue

Kalshi

9 bound

30-day trend

0%50%100%-30d-3w-2w-1wtoday485+ feet: 54% (4 days, 4 points)485+ feet: 54% on 2026-07-13490+ feet: 51% (4 days, 4 points)490+ feet: 51% on 2026-07-13495+ feet: 45% (4 days, 4 points)495+ feet: 45% on 2026-07-13
485+ feet54¢490+ feet51¢495+ feet45¢
Top 3 candidates by current price · 4d

Bracket family

How the bracket ladder is priced.

Each row is one outcome on the venue. Sorted by 24h volume — the heaviest book is at the top.

Analysis

Markets estimate a 68% probability that the longest home run at the 2026 Home Run Derby will exceed 485 feet. The Home Run Derby typically features elite power hitters competing under conditions favorable to distance—a controlled environment with optimized balls and bats that often produce longer distances than regular-season games. The probability reflects historical precedent: recent derbies have regularly seen 480+ foot shots, though exceeding this threshold consistently depends on participant quality and weather conditions. The event is scheduled for summer 2026, and the outcome will be definitively measured and publicly reported. Notable uncertainty remains in the upper tiers: only 39% probability of 500+ feet and just 3% of 525+ feet, suggesting markets expect competitive but not historically extreme distances.

  • Historical Home Run Derby records show the longest hit has exceeded 480 feet in most years since 2015, establishing a baseline for the 485-foot threshold
  • Participant selection and power-hitter talent pool in 2026 will directly influence maximum distance; elite competitors like Juan Soto or Kyle Schwarber significantly raise probability versus a weaker field
  • The contract pricing ladder (68% for 485+, 39% for 500+, 16% for 515+) shows markets assign roughly 30-point probability drops per 15-foot increment, indicating normal distribution assumptions
  • Environmental factors including stadium elevation, wind conditions, and weather on derby day could shift outcomes by 20-30 feet but are not yet determined
  • The specific 485-foot threshold appears chosen as slightly above the recent historical median rather than an extreme outlier, making it the consensus likely outcome

What moved the line

  • Jul 11515+ feet12pp1628¢ · Kalshi
  • Jul 13505+ feet8pp1927¢ · Kalshi
  • Jul 13490+ feet6pp4551¢ · Kalshi
  • Jul 12495+ feet6pp3440¢ · Kalshi
  • Jul 11510+ feet6pp2317¢ · Kalshi

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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