SimpleFunctions
9 source contracts·Kalshi 9·refreshed just now·Closes Jul 14, 2026 · 1d

Will Bobby Witt Jr. be selected to the 2026 Pro Baseball Home Run Derby

Liquidity-weighted aggregate sits at 37% across 9 Kalshi contracts.

Implied probability

37%
0%50%100%

Kalshi

37%

9 contracts

Polymarket

not bound

Cross-venue gap

single venue

24h move

no pin

24h volume

$626

9 contracts

Closes

Jul 14, 2026

1 days

30-day trend

0%50%100%-30d-3w-2w-1wtodayAggregate: 34% (31 days, 31 points)Aggregate: 34% on 2026-07-13
Aggregate of 9 contracts · 31d

Bracket families

9 clusters across 9 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 Pete Alonso be selected to the 2026 Pro Baseball Home Run Derby

1 contract$392

Cluster 2

Will James Wood be selected to the 2026 Pro Baseball Home Run Derby

1 contract$65

Cluster 3

Will Miguel Vargas be selected to the 2026 Pro Baseball Home Run Derby

1 contract$62

Cluster 4

Will Oneil Cruz be selected to the 2026 Pro Baseball Home Run Derby

1 contract$39

Cluster 5

Will Matt Olson be selected to the 2026 Pro Baseball Home Run Derby

1 contract$38

Cluster 6

Will Yordan Alvarez be selected to the 2026 Pro Baseball Home Run Derby

1 contract$16

Cluster 7

Will Max Muncy (LAD) be selected to the 2026 Pro Baseball Home Run Derby

1 contract$11

Cluster 8

Will Christian Walker be selected to the 2026 Pro Baseball Home Run Derby

1 contract$2

Cluster 9

Will Brandon Lowe be selected to the 2026 Pro Baseball Home Run Derby

1 contract$0

Analysis

This probability estimates a 30% chance that Bobby Witt Jr. will be selected for Major League Baseball's 2026 Home Run Derby, typically held during All-Star Week in July. Selection depends primarily on his mid-season performance metrics—particularly home run totals and batting average relative to other eligible players—and MLB's official selections announced closer to the event. The probability reflects uncertainty around whether Witt Jr.'s offensive production through June will warrant an invitation compared to other power hitters. The main catalyst resolving this question will be MLB's official Home Run Derby roster announcement, usually made in early to mid-July. Comparative contract pricing shows similar uncertainty across other candidates, with Aaron Judge trading at 4% and Max Muncy at 27%, suggesting markets view Witt Jr. as a moderate candidate relative to other sluggers.

  • Bobby Witt Jr.'s home run count and slugging percentage through late June relative to other qualifying players
  • MLB's historical selection criteria, which typically favor players with high home run totals and fan voting results
  • Witt Jr.'s injury status and playing time availability heading into the All-Star break
  • Competition from other power hitters—players like Judge, Muncy, and O'Neill Cruz may reduce selection likelihood if their offensive numbers exceed Witt Jr.'s
  • Official Home Run Derby roster announcement date in early-to-mid July 2026, which definitively resolves the contract

What moved the line

  • Jul 13Miguel Vargas83pp184¢ · Kalshi
  • Jul 12James Wood37pp542¢ · Kalshi
  • Jul 7Matt Olson35pp5015¢ · Kalshi
  • Jul 9James Wood29pp4314¢ · Kalshi
  • Jul 12Pete Alonso25pp328¢ · 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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