MLB: Home Runs Leader

Platform comparison

Market context

The 2026 MLB regular season home run leader market currently sits at a 1% crowd-implied probability for the “YES” outcome, reflecting deep uncertainty about who will top the league in power hitting as the season progresses past the All-Star break. With Aaron Judge leading the futures odds at +350 and Shohei Ohtani close behind at +400, the market is still pricing in multiple contenders rather than a single dominant force, a pattern consistent with recent seasons where no player exceeded 50 home runs.

Historically, seasons with tight home run leader races—such as 2023 and 2024—have seen final odds shift dramatically after the All-Star break, with longshots like Kyle Schwarber and Cal Raleigh emerging as frontrunners only mid-season. In 2025, Cal Raleigh won with 47 home runs, but entered the year at +900 odds, underscoring how early-season favourites often fail to close the gap. The current 1% probability suggests the market is still waiting for a clear catalyst to separate the top tier from the rest.

Traders should monitor weekly injury reports, especially for Judge and Ohtani, whose health directly impacts their ability to maintain pace through September. The All-Star break (mid-July) will be a key inflection point, as players with strong first halves often fade in August. Recent projections from FantasyPros list Judge at 47 projected home runs, Schwarber at 42, and Raleigh at 41, but these figures remain fluid. As noted by Yahoo Sports, Schwarber is already leading the league with 20 home runs as of late May, ahead of Judge and Murakami at 17, a surge that could reshape the odds if sustained.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Prediction Today trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.