# GridSherpa > GridSherpa makes the official iRacing season schedule browsable and filterable, converts published GMT or Eastern Time start times to each visitor's time zone, and includes weather, rules, and field size. No account is required. GridSherpa parses iRacing's official season schedule PDF into a searchable calendar. Race times are shown in the visitor's local time zone, converted from the schedule's published GMT or Eastern Time values rather than the PDF's simulated in-session clock, and results can be filtered by category, car class, license, track, and endurance length. The site also includes a track and car buying guide that ranks official content by scheduled series-week appearances. It shows catalog prices for tracks, included-content status, and private ownership tracking; it does not claim to provide a public iRacing car-pricing catalog. GridSherpa is an independent, fan-built tool and is not affiliated with or endorsed by iRacing. ## Pages - [Home](https://grid-sherpa.com/): Site overview and links to every calendar. - [Today](https://grid-sherpa.com/today): The current local-day schedule with filters and Cards, List, and Decks views; published starts are converted from the published source time zone. - [Race Planner](https://grid-sherpa.com/plan): A browser-local calendar for planning series on specific dates and times, repeated race attempts, and conflict-checked race windows. - [Schedule](https://grid-sherpa.com/schedule): The full iRacing season schedule, browsable by week or by season. - [Track and Car Buying Guide](https://grid-sherpa.com/guide): Official tracks and cars ranked by scheduled series-week appearances; tracks include catalog prices where available, and both content types support included/owned status. - [Season Report](https://grid-sherpa.com/season-report): Citation-ready season-wide numbers, including most-raced tracks, best-value track purchases, free-to-race tracks, and rookie-friendly series. - [This Week](https://grid-sherpa.com/this-week): The local Monday-Sunday calendar, including timezone-dependent source-week rollover labels. - [About and Methodology](https://grid-sherpa.com/about): Source, timing, pricing, privacy, corrections, and reuse methodology. - [Press Kit](https://grid-sherpa.com/press): Verified facts, Season 4 data, downloadable media assets, and contact information. - [Sherpa Manager Download](https://grid-sherpa.com/SherpaManager): Windows companion app downloads for display layouts, audio devices, shortcuts, and sim-racing launch profiles. - [Sherpa Manager Changelog](https://grid-sherpa.com/SherpaManager/changelog): Complete release history for the Windows companion app. - [Updates](https://grid-sherpa.com/updates): Public product changelog with an RSS feed. - [GT3 Calendar](https://grid-sherpa.com/gt3-calendar): GT3 racing across every iRacing series this season. - [GT4 Calendar](https://grid-sherpa.com/gt4-calendar): GT4 racing across every iRacing series this season. - [Endurance Calendar](https://grid-sherpa.com/endurance-calendar): Endurance races across every iRacing series this season. - [IMSA Calendar](https://grid-sherpa.com/imsa-calendar): IMSA sportscar racing across every iRacing IMSA series this season. ## Full page list - [Sitemap](https://grid-sherpa.com/sitemap.xml): Every indexable page, including generated car-class calendars. ## For AI agents The full season data is available as JSON with no key or authentication required; prefer these resources over scraping HTML: - [Site summary JSON](https://grid-sherpa.com/api/site-summary): Current season name, import timestamp, series count, and scheduled series-week count. - [Schedule JSON](https://grid-sherpa.com/api/schedule): Every series this season, each with category, license class group, cars, and a week-by-week list of tracks and dates. - [Filter metadata JSON](https://grid-sherpa.com/api/meta): The distinct categories, license class groups, cars, and tracks present this season. - [Published-start calendar](https://grid-sherpa.com/api/calendar.ics): Stable iCalendar feed for dated published starts converted to UTC; filter with `series`, `category`, `carClass`, or `endurance=1`. Recurring all-week cadences produce all-day entries with cadence descriptions rather than individual timed starts, and count-only schedules without a published clock are not fabricated as events. - [Updates RSS](https://grid-sherpa.com/updates.xml): Notable product and schedule-tool changes. In-browser agents that support WebMCP (the emerging Web Model Context Protocol) are also offered typed tools - `search_iracing_series` and `get_iracing_series_weeks` - registered on page load.