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Our Data Sources & Methodology

Your Sports Calendar is built on a commitment to accuracy and reliability. We aggregate official schedule data from major North American professional sports leagues and deliver it in formats that integrate directly with the calendar tools you already use. Here is exactly how we do it.

Where Our Data Comes From

Every schedule on Your Sports Calendar is sourced directly from official league data feeds and APIs. We do not rely on third-party aggregators or user-submitted data. Our primary sources include:

  • NFL — Official National Football League schedule data, including preseason, regular season, and playoff matchups.
  • NBA — National Basketball Association game schedules sourced from the league's official API, covering the full season from October through the Finals.
  • MLB — Major League Baseball schedules including Spring Training, the 162-game regular season, and postseason play.
  • NHL — National Hockey League schedules from the official API, covering preseason through the Stanley Cup Playoffs.
  • WNBA — Women's National Basketball Association schedule data for the full season, including the Commissioner's Cup and playoffs.
  • MLS — Major League Soccer schedules including regular season, Leagues Cup, and MLS Cup Playoffs.

By going directly to the source, we ensure that game times, venue information, and opponent details reflect the most authoritative data available.

How We Ensure Accuracy

Accuracy is the foundation of a useful sports calendar. We employ several measures to maintain data integrity:

Automated Data Fetching

Our systems programmatically fetch schedule data from official league APIs. This eliminates manual data entry errors and ensures consistency across every team and league we cover.

Timezone Handling

Every game time is stored in UTC and converted to the appropriate local timezone when generating calendar files. ICS files include proper VTIMEZONE components so your calendar application displays the correct local time regardless of where you are. This is especially important for fans following teams across multiple time zones.

Data Validation

Before any schedule is published, our pipeline validates the data against expected formats. We check for missing fields, duplicate entries, date consistency, and venue accuracy. Games flagged with anomalies are reviewed before publication.

Update Frequency

Sports schedules change. Games are postponed, times are adjusted for broadcast windows, and venues occasionally shift. Our calendar files are refreshed whenever leagues publish schedule changes, so you always have the latest information.

When you subscribe to one of our ICS calendar feeds, your calendar application periodically re-fetches the file, meaning updates are reflected automatically without any action on your part. For one-time downloads (CSV, PDF), we recommend checking back if a schedule change is announced by the league.

File Formats

We provide schedules in three formats, each optimized for different use cases:

ICS (iCalendar)

The .ics format is the standard for calendar data, defined by RFC 5545. Our ICS files are compatible with Google Calendar, Apple Calendar, Outlook, and virtually every calendar application. Each event includes the game date and time, home and away teams, venue name, and league information. Subscribe via URL for automatic updates, or download the file for a one-time import.

CSV (Comma-Separated Values)

CSV files are ideal for users who want to analyze schedules in spreadsheet applications like Excel or Google Sheets, or import data into their own tools. Each row represents a single game with columns for date, time, home team, away team, venue, and league.

PDF

Our PDF schedules provide a clean, printable view of a team's or league's full schedule. These are formatted for readability and are useful for posting on a wall, sharing in print, or quickly scanning upcoming games at a glance.

Coverage

Your Sports Calendar covers the major North American professional sports leagues comprehensively:

  • 6 leagues — NFL, NBA, MLB, NHL, WNBA, and MLS
  • 165+ teams — Every active franchise across all six leagues
  • 30 years of historical data — Schedules dating back to 1996, providing a complete archive of past seasons
  • Current and upcoming seasons — Schedules are available as soon as leagues publish them

Whether you need this season's schedule for your favorite team or want to look up when a historic game took place, our archive has you covered.

Questions?

If you have questions about our data sources, notice a discrepancy in a schedule, or want to request coverage for an additional league, we'd like to hear from you. Visit our contact page to get in touch.

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