SimpleFunctions
14 source contracts·Kalshi 14·refreshed just now·Closes Dec 3, 2026 · 74d

Will all hitters combined record 2+ instances of a player hitting 3+ home runs in a game

Liquidity-weighted aggregate sits at 33% across 14 Kalshi contracts.

Implied probability

33%
0%50%100%

Kalshi

33%

14 contracts

Polymarket

not bound

Cross-venue gap

single venue

24h move

no pin

24h volume

$1K

14 contracts

Closes

Dec 3, 2026

74 days

30-day trend

0%50%100%-30d-3w-2w-1wtodayAggregate: 26% (26 days, 26 points)Aggregate: 26% on 2026-09-19
Aggregate of 14 contracts · 26d

Bracket families

2 clusters across 14 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 all hitters combined record

12 contracts$1K
OutcomePrice24hVolumeVenueDetail

Will all hitters combined record 1+ 40+ home runs and 40+ steals seasons?: 1+ players with a 40+ home runs and 40+ steals season

KXMLBSTATCOUNT-264040-1

57¢8pp$435K

Will all hitters combined record 15+ inside-the-park home runs?: 15+ inside-the-park home runs

KXMLBSTATCOUNT-26ITPHR-15

36¢16pp$408K

Will all hitters combined record 3+ 30+ home runs and 30+ steals seasons?: 3+ players with a 30+ home runs and 30+ steals season

KXMLBSTATCOUNT-263030-3

19¢+6pp$232K

Will all hitters combined record 5+ cycles?: 5+ cycles

KXMLBSTATCOUNT-26CYCLE-AH-5

20¢21pp$1K

Will all hitters combined record 16+ instances of a player hitting 3+ home runs in a game?: 16+ instances of a player hitting 3+ home runs in a game

KXMLBSTATCOUNT-263HR-AH-16

68¢9pp$0K

Will all hitters combined record 15+ instances of a player hitting 3+ home runs in a game?: 15+ instances of a player hitting 3+ home runs in a game

KXMLBSTATCOUNT-263HR-AH-15

60¢32pp$0K

Will all hitters combined record 14+ instances of a player hitting 3+ home runs in a game?: 14+ instances of a player hitting 3+ home runs in a game

KXMLBSTATCOUNT-263HR-AH-14

76¢10pp$0K

Will all hitters combined record 3+ 40+ home runs and 40+ steals seasons?: 3+ players with a 40+ home runs and 40+ steals season

KXMLBSTATCOUNT-264040-3

4¢1pp$0K

Will all hitters combined record 7+ cycles?: 7+ cycles

KXMLBSTATCOUNT-26CYCLE-AH-7

3¢1pp$0K

Will all hitters combined record 6+ cycles?: 6+ cycles

KXMLBSTATCOUNT-26CYCLE-AH-6

16¢+7pp$0K

Will all hitters combined record 18+ inside-the-park home runs?: 18+ inside-the-park home runs

KXMLBSTATCOUNT-26ITPHR-18

25¢+18pp$0K

Will all hitters combined record 16+ inside-the-park home runs?: 16+ inside-the-park home runs

KXMLBSTATCOUNT-26ITPHR-16

28¢+2pp$0K

Cluster 2

Will all pitchers combined record

2 contracts$0

Analysis

This contract asks whether at least two players will each hit three or more home runs in a single game during a specific period. The 47% probability reflects a middle-ground assessment of this relatively rare occurrence. The likelihood depends on the number of games played and the composition of active hitters—more games and stronger offensive lineups increase the probability, while injuries to power hitters or rule changes affecting home run frequency would decrease it. The primary resolution driver is the completion of the specified timeframe with final statistics, which would provide definitive data on whether the threshold was met.

  • Historical frequency of 3+ home run games varies by season; recent MLB seasons show 1-3 instances annually
  • The time window specified for this contract determines how many games occur and therefore the probability of observing multiple instances
  • Roster composition and player availability directly affect offensive output; mid-season trades or injuries to power hitters materially change expectations
  • Weather conditions and ballpark dimensions influence home run rates across a season
  • Rule changes or equipment modifications affecting ball liveliness would shift baseline home run production

What moved the line

  • Sep 1715+ instances of a player hitting 3+ home runs in a game32pp9260¢ · Kalshi
  • Sep 195+ cycles21pp4120¢ · Kalshi
  • Sep 1818+ inside-the-park home runs18pp725¢ · Kalshi
  • Sep 1915+ inside-the-park home runs16pp5236¢ · Kalshi
  • Sep 173+ players with a 30+ home runs and 30+ steals season16pp622¢ · Kalshi

Recently closed in sports

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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