MLB Matchup Analyzer

Table of Contents

• Example
• Workflow
• Signal Outputs
• Guardrails
• Quick Reference

Example

Scenario: User needs to decide whether to start Junior Caminero (TB, RHB) for today's game. Game: Tampa Bay Rays @ Colorado Rockies, 2026-04-17, Coors Field.

Research pass (web search, cite every URL):

• MLB.com probable pitchers -> COL SP is German Marquez (RHP), 2026 ERA 5.10, K% 19.0%, hard-hit% 43%
• FanGraphs park factors 2026 -> Coors Field: wOBAcon 1.18 (league-leading hitter park)
• RotoWire weather (Denver, 7:10 PT first pitch) -> 82F, 0% precip, wind out to CF 9 mph
• RotoBaller closer chart -> COL bullpen: closer healthy, setup mix stable; TB bullpen: closer used 3 of last 4, likely unavailable