21% — Will Samuel Basallo win AL ROTY
Kalshi 21% · 5 contracts · $6K volume · medium confidence
Updated 2026-08-27 11:51:22 UTC

Why this matters:
This 21% probability reflects the market's assessment that Samuel Basallo has roughly a one-in-five chance of winning the American League Rookie of the Year award. The market appears to be pricing in competition from other strong candidates, particularly Kevin McGonigle (currently at 83 cents), suggesting Basallo faces a crowded field. Basallo's probability would move higher if he demonstrates sustained offensive performance over the remainder of the 2026 season, or lower if other rookies pull ahead in traditional ROTY metrics like batting average, home runs, or WAR. The award will be decided after the regular season concludes in late September or early October, when voters evaluate full-season statistics and voting takes place.

Key factors:
- Kevin McGonigle trades at 83 cents versus Basallo at 21 cents, indicating market-wide consensus on a clear frontrunner among AL rookies
- Munetaka Murakami at 12 cents represents a third viable candidate, fragmenting the probability space across multiple players
- ROTY voting typically weighs full-season statistics (plate appearances, hits, ERA, strikeouts depending on position), making remaining 2026 performance directly predictive
- The 24-hour volume on competing contracts ($3,777 on McGonigle versus liquidity patterns) reflects active market reassessment as the season progresses
- Award voting occurs in October 2026 after the regular season concludes, providing a defined resolution date with no interim measurement points

Contracts:
- Will Kevin McGonigle win AL ROTY?: Kevin McGonigle — 83¢ Kalshi $3K (weight 43%)
- Will Parker Messick win AL ROTY: Parker Messick — 10¢ Kalshi $2K (weight 36%)
- Will Munetaka Murakami win AL ROTY?: Munetaka Murakami — 4¢ Kalshi $1K (weight 21%)
- Will Hagen Smith win AL ROTY?: Hagen Smith — 3¢ Kalshi $0 (weight 0%)
- Will Lazaro Montes win AL ROTY?: Lazaro Montes — 4¢ Kalshi $0 (weight 0%)

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## Methodology

SimpleFunctions aggregates live YES-side prices from Kalshi and Polymarket contracts bound to this question. For binary topics the headline is the liquidity-weighted mid-price (weight = log(1 + 24h volume) × freshness, where freshness is 1.0 if updated <24h, 0.7 if <7d, 0.4 otherwise). For multi-outcome (winner-take-all) topics the headline is the current leader's price — disjoint outcomes are never arithmetically averaged. Snapshots refresh every 5 minutes during market hours.

## SF Signal

- SF Index, regime, and 30d Brier calibration are computed separately and surfaced at https://simplefunctions.dev/admin/calibration.
- No SimpleFunctions index / regime / calibration signal is bound to this topic yet — the headline above is market-derived only.

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*Last verified: 2026-08-27T11:21:46.951Z*

By SimpleFunctions — https://simplefunctions.dev/

Cite as: "21% per prediction markets (SimpleFunctions, August 2026)"
Canonical: https://simplefunctions.dev/answer/mlbalroty
Full data: https://simplefunctions.dev/api/public/query?q=Will%20Samuel%20Basallo%20win%20AL%20ROTY
Provider: SimpleFunctions — https://simplefunctions.dev