Open MLB NRFI and YRFI. Inspect first-inning grades, pitcher records, offense, and prices.
Choose the first-inning market
NRFI means no run in the first inning; YRFI means a run in the first inning. Select the date, available historical sample, and NRFI/YRFI filter. Sort by game time or grade to choose a matchup to inspect.
Read a game card
Review the lean, grade, pitcher scoreless records, reason tags, and quoted odds. A grade is a research summary, not a probability that the inning will be scoreless. A full-game pitcher ERA is also different from a first-inning record.
Expand the evidence
Open the game for pitcher profiles, first-inning offense, component scores, park/weather context, and available prices on both sides. Confirm the listed pitchers and top of the batting order still apply to the upcoming game.
Example: strong scoreless history for one pitcher only describes half of the first inning's pitching matchup. Inspect both pitchers and both offenses before interpreting the whole-game NRFI market.
Check the current offer
Compare like-for-like first-inning markets and inspect the operator's rules for pitcher changes and incomplete innings. A favorable grade at one price need not be attractive at a much more expensive price.
If a game or price is missing, check the date and market coverage. Changing the sample can change the grade; inspect the underlying records rather than selecting only the most favorable window.