MLB: Triples Leader

Platform comparison

Market context

The 2026 Major League Baseball regular season will determine which player accumulates the most triples, with Corbin Carroll currently dominating the market as the overwhelming favourite. Prediction markets on Polymarket and Kalshi assign him an 84% and 83% probability respectively, while FantasyPros projections forecast 11 triples for Carroll, significantly ahead of Daylen Lile and Jarren Duran at eight. This level of consensus mirrors historical precedents where speed-first players like Carroll, who hit 18 triples in 2023, establish early statistical dominance that rarely shifts unless injury or team strategy intervenes.

Traders must monitor Arizona Diamondbacks’ offensive line-up announcements and Carroll’s health status, as any reduction in his base-running opportunities could erode his lead. Recent projections from FantasyPros highlight the gap between Carroll and his nearest rivals, suggesting a high margin of safety for his position [7]. Additionally, the official MLB triples leaderboard and ESPN verification rules will dictate resolution in tie scenarios, making real-time stat tracking essential as the season progresses toward the 28 September settlement window [4][5]. Divergence between sportsbook futures on DraftKings and prediction-market implied probabilities remains minimal, reinforcing the market’s confidence in Carroll’s trajectory.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews MLB: Triples Leader across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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.

Do I need to KYC for this market?

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

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.