MLB: Team to win 100+ games

Platform comparison

Market context

The underlying event is whether any Major League Baseball franchise reaches 100 victories during the 2026 regular season, a threshold that has become increasingly rare in the modern era. Historical data shows that while 119 teams achieved 100 wins across 147 seasons from 1876 to 2025, the last two campaigns concluded with zero such teams, including the Milwaukee Brewers finishing at 96 wins despite holding the league’s best record[1][3]. This recent drought frames the current 3% crowd-implied probability as a rational reflection of structural difficulty rather than mere pessimism, suggesting that programmatically, a bot should treat this as a low-frequency event requiring conditional orders only if early-season win rates exceed 0.65 per game.

Traders must monitor mid-season roster announcements, injury reports for top starters, and the pace of the Los Angeles Dodgers and Atlanta Braves, who currently lead the league with 56 and 49 wins respectively[4]. The Dodgers hold a 27.3% projection to win the World Series, while the Braves sit at 9.5%, making their win totals the primary catalysts for any 100-win outcome[6]. A power-user evaluating copy-trading tools should watch for schedule dependencies, particularly how the Dodgers and Braves perform in their remaining 80 games, and set automated alerts for any team surpassing 58 wins by August 1, as this would signal a viable path to 100. Recent projections indicate the Yankees and Orioles will finish as wild cards, further narrowing the pool of teams capable of reaching the threshold[2].

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

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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 Polymarket Bot UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

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 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.