San Francisco Giants vs. Kansas City Royals

Platform comparison

Market context

The San Francisco Giants and Kansas City Royals are scheduled to play at Kauffman Stadium in Kansas City at 2:10 pm ET, with the market set to resolve on the official final result once the game is completed[1]. With crowd-implied probability at 56% for a Giants win, the market is pricing a modest edge rather than a strong conviction, which is broadly consistent with a single-game baseball event where late line-up changes and starting-pitcher confirmation can move fair value materially before first pitch[1].

Comparable MLB prediction markets often remain sensitive to news flow right up to game time because postponements, bullpen usage, and scratch risk can alter both the actual outcome and the settlement path. Here, the key mechanic is operational rather than theoretical: if the game is postponed, the market stays open until completion; if it is cancelled outright or ends tied, it settles 50-50, so traders are exposed not just to team form but also to scheduling risk and weather-driven uncertainty. In practice, that makes the 56% read less about a fixed baseball edge and more about the current balance of expectation, with any late lineup or schedule update able to reprice the contract quickly.

Sources: 1

Methodology

This page reads San Francisco Giants vs. Kansas City Royals on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

FAQ

Why USDC and not ETH or USDT?

USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.

What does a transaction cost on Polygon?

Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.

Can I use Bitcoin directly?

No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.

How volatile are crypto prediction markets?

Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.

Are crypto prediction markets taxable in the US?

In the US, prediction market gains are typically treated as ordinary income or short-term capital gains depending on holding period. Consult a tax professional for your specific situation — we cannot provide tax advice.