With the 2025 season properly in flight now, it's time for a progress update on the Roadmap to July 2025.

Tier 2 Competitions​

We continue to add Tier 2 competitions to the AFL Platform. We are still broadly on track to have them implemented into the production environment by mid-year. The following competitions have been completed along with their 2024 seasons:

• VFL - League Id 5, Level Id 1
• VFLW - League Id 6, Level Id 1
• U18 Championships - League Id 8, Level Id 5
• Coates Talent League Boys - League Id 10, Level Id 5
• Coates Talent League Girls - League Id 11, Level Id 5

We prioritised these competitions because of the challenges each one presented to the AFL API. This proved effective as it highlighted a few concerns which we have addressed "behind the scenes", having zero impact on the AFL Premiership and AFLW leagues already in place. This included:

• Handling the variability in Tier 2 venues' current sponsorship names (some have them, some don't, some change frequently)
• Handling when a Champion Data capture operator enrols a player into a Tier 2 match minutes before the match starts
• Improving metric generation, or indeed bypassing it on more advanced metrics that aren't supported by Tier 2 matches
• A single cancelled match in the Coates Talent Boys League last year that resulted in both teams being awarded a draw result

What's next for Tier 2?​

Multiple Level Leagues​

We are currently adding SANFL to the API. This will be the first league that has multiple levels, as we capture U18, U16 and Reserves SANFL matches.

Here's the table of levels each league can contain. Up to this point all API calls have been based around using the same level id (primarily Id 1), now querying will involve understanding which level you are targeting.

So this will be applied to both SANFL and WAFL as follows:

• SANFL - League Id 12
  • SANFL League - Level Id 1
  • SANFL Reserves - Level Id 2
  • SANFL U16 - Level Id 3
  • SANFL U18 - Level Id 5
• WAFL - League Id 16
  • WAFL League - Level Id 1
  • WAFL Reserves - Level Id 2
  • WAFL Colts - Level Id 6

Tier 2 Live Match Ingestion​

While we have committed to delivering matches to the API after they've been played this year ("post-match"), we are currently testing live match ingestion in the same manner as Tier 1 matches as we'd prefer to ingest all matches as they happen, regardless of tier. This in of itself is no challenge, but much of the work revolves around ensuring the AFL Platform handles the additional load in live matches and that none impact one another. To this end, we've taken the decision to logically isolate Tier 1 matches from Tier 2. This will have no impact on your use of the API and will ensure that should some issue occur with a Tier 2 match, its impact to the Platform will be limited to Tier 2 only.

Advanced Data Queries (ADQ)​

We have selected Snowflake as the core technology for powering Advanced Data Queries and we have begun principal development. We have recently formed a team with a focus on data engineering and we are looking to grow the team as we scale for delivery.

First Release July 2025​

The first release of ADQ will provide a queryable dataset that replicates the capabilities of CIA's Dimensional Custom report. This will initially cover Tier 1 leagues (AFL Premiership, AFLW), then later in the year expand to include Tier 2 leagues once they are available from the AFL API.

Metric Glossary API Endpoint​

The /metadata/metrics/glossary endpoint provides detailed information about each metric, including how it is aggregated and a technical description. It is undergoing a last-minute polish to standardise terminology and will be available in the next few weeks.

Match Metric Events API Endpoint​

Work has begun on implementing a new API endpoint that returns when each instance of a metric occurred, along with which player(s) it applies to, its location and accompanying information such as pressure. Initial work revolves around looking at how to structure the API response - conventionally by period and period seconds or grouped by metric/transaction.

Head Start Report Metrics​

This quarter, we’re prioritising the implementation of the following types metrics that are currently only available through the Head Start report suite.

Contested Possession Source Metrics​

These metrics return the number of contested possessions based on the state of possession beforehand:

• Own Team Control – when your team had possession before the contest.
• Opposition Control – when the opposing team had possession.
• Neutral (Pre-Clearance) – when neither team had clear control.

Contested Possession Breakdown​

This set of metrics categorises contested possessions by the type of play:

• Ruck
• General Play – Air
• General Play – Ground
• Other Stoppage

Shot at Goal Types​

These metrics break down shots at goal by type and cover:

• Expected Points & Accuracy
• Both Set Position and during General Play

Ahead of the 2025 season we are updating the AFL API's authentication module as part of a review to improve our support processes.

As part of this update, if you are using an M2M account to communicate with the AFL API, the account's credentials (the Client ID and Client Secret) will be refreshed. This requires action on your part to ensure your applications continue to have access to the AFL API.

What needs updating?​

Once you have received your new Client Id & Secret (via a secure link sent by email), replace the existing values with the new ones.

In addition, the M2M token address has changed - update it to the following:

https://championdata-afl.au.auth0.com/oauth/token

When can I apply these changes?​

As soon as you receive them from Champion Data - they take immediate effect.

How long do I have to make the change?​

The original M2M credentials will be deactivated week commencing 10th March 2025, after the season has started.

Questions?​

Please email your questions to support@championdata.com.au.

With the AFL Premiership season done, and AFLW 2024 approaching the finish line, we thought it would be a good point to summarise everything added to the AFL API this year.

New API Features​

Match Statistic POST endpoints​

At the start of the year, we introduced the Match Statistics POST Endpoints. While they perform the same function as the GET Endpoints, they enable you to make multiple statistic queries against a match in one API call, rather than several. They are both faster and more efficient, plus they save on API calls when you're watching your usage limit.

• Players statistic POST endpoint
• Squads statistic POST endpoint

AFLW Matches​

AFLW is now formally supported by the AFL API, providing both past, live and future matches as they happen. AFLW matches work near identically to their Premiership counterparts, so you can reuse existing reports, dashboards and applications for AFLW simply by querying their match ids.

• How AFLW Works

'Last X' match statistics filter​

The match statistics endpoints can now be filtered to a time range within a period, or to the last few minutes of play in a period. This can be used to drive a match day dashboard that shows how players are doing for the past 10 minutes.

• How Last X Works
• R Package Last X Functionality

Match Transaction & Summary File Support Package Functions​

The R Package (and later this year, the Python Package) now provides functions to generate these support site files from the AFL API.

• Support Site File Replacement Functions

New Metrics​

The following metrics were added to the AFL API between March and October this year.

• ABSENCE_CENTRE_BOUNCE_LOSS_PCT

  The percentage of a players total centre bounce absences that result in a clearance to the opposition squad.

• ABSENCE_CENTRE_BOUNCE_NEUTRAL_PCT

  The percentage of a players total centre bounce absences that do not result in a clearance for that centre bounce for either team.

• ABSENCE_CENTRE_BOUNCE_WIN_PCT

  The percentage of a players total centre bounce absences that result in a clearance to the given players squad.

• ATTENDANCE_CENTRE_BOUNCE_LOSS_PCT

  The percentage of a players total centre bounce attendances that result in a clearance to the opposition squad.

• ATTENDANCE_CENTRE_BOUNCE_NEUTRAL_PCT

  The percentage of a players total centre bounce attendances that do not result in a clearance for that centre bounce for either team.

• ATTENDANCE_CENTRE_BOUNCE_WIN_PCT

  The percentage of a players total centre bounce attendances that result in a clearance to the given players squad.

• CLEARANCE_PCT

  The percentage of all stoppages that resulted in a clearance win.

• DISPOSAL_PER_TURNOVER

  Ratio of Disposals compared to Disposals that were also turnovers.

• DISPOSAL_TURNOVER

  Disposals that resulted in a turnover, where the zone is attributed to the zone of the disposal.

• GOAL_EXPECTED

  Total goals expected from a given shot (based on location, pressure, sidedness). At a transaction level this will show expected accuracy and when summed will show the expected goal.

• HANDBALL_TURNOVER

  Handballs that resulted in a turnover, where the zone is attributed to the zone of the handball.

• INSIDE_50_FORCED_ENTRY_RETURN

  Total points returned after a forced inside 50 entry and before another inside 50 or centre bounce.

• INSIDE_50_INITIAL_DIRECT_ENTRY_RETURN

  Total points returned after a direct initial inside 50 entry and before another inside 50 or centre bounce.

• INSIDE_50_INITIAL_ENTRY_RETURN

  Total points returned after an initial inside 50 entry and before another inside 50 or centre bounce.

• INSIDE_50_MID_STOPPAGE_DIRECT_ENTRY_RETURN

  Total points returned after a direct midfield stoppage inside 50 entry and before another inside 50 or centre bounce.

• INSIDE_50_MID_STOPPAGE_ENTRY_RETURN

  Total points returned after a midfield stoppage inside 50 entry and before another inside 50 or centre bounce.

• INSIDE_50_REPEAT_DIRECT_ENTRY_RETURN

  Total points returned after a direct repeat inside 50 entry and before another inside 50 or centre bounce.

• INSIDE_50_REPEAT_ENTRY_RETURN

  Total points returned after a repeat inside 50 entry and before another inside 50 or centre bounce.

• INSIDE_50_TRANSITION_DIRECT_ENTRY_RETURN

  Total points returned after a direct transition inside 50 entry and before another inside 50 or centre bounce.

• INSIDE_50_TRANSITION_ENTRY_RETURN

  Total points returned after a transition inside 50 entry and before another inside 50 or centre bounce.

• KICK_TURNOVER

  Kicks that resulted in a turnover, where the zone is attributed to the zone of the kick.

• METRES_GAINED_ASSISTED

  Total metres gained by a teammate that receives an uncontested possession from your disposal.

• METRES_GAINED_DISPOSAL

  Metres Gained via disposals. Measured from the point the original point of possession to the next possession or stoppage.

• METRES_GAINED_DISPOSAL_AVG

  The average number of meters gained per-disposal

• METRES_GAINED_HANDBALL

  Metres Gained via handballs. Measured from the point the original point of possession to the next possession or stoppage.

• METRES_GAINED_HANDBALL_AVG

  The average number of meters gained via handballs

• METRES_GAINED_KICK

  Metres Gained via kicks, measured from the point of the original possession to the next possession or stoppage.

• METRES_GAINED_KICK_AVG

  The average number of metres gained via kicks

• METRES_GAINED_NET

  Metres Gained plus Assisted Metres Gained.

• METRES_GAINED_OTHER

  Metres Gained not via disposals.

• METRES_GAINED_RETAIN

  Metres Gained where the disposal/possession was retained.

• ONE_PERCENTER

  Cumulation of knock ons, shepherds, credits, spoils and smothers.

• POINTS_ABOVE_EXPECTED

  Total points scored above the expected score.

• POSSESSION_CONTESTED_PCT

  The percentage of all possessions that are contested possessions.

• POSSESSION_UNCONTESTED_PCT

  The percentage of all possessions that are uncontested possessions.

• PRESSURE_ACT_FORCED_TURNOVER_BEHI_PCT

  The percentage of all forced turnovers that result in a behind.

• PRESSURE_ACT_FORCED_TURNOVER_GOAL_PCT

  The percentage of all forced turnovers that result in a goal.

• PRESSURE_ACT_FORCED_TURNOVER_POINTS

  Total points generated by pressure acts forcing a turnover.

• PRESSURE_ACT_FORCED_TURNOVER_SCORE_PCT

  The percentage of all forced turnovers that result in a score.

• RANKING_POINTS

  The Official Champion Data AFL Rankings system was established in 1999 and has been developed into a robust and comprehensive system for objectively measuring player performance through the use of statistical measures. The rankings are geared to reward the winning factors of a game of AFL football. They are used as the scoring measure in the Herald-Sun SuperCoach fantasy game.

• TIME_IN_POSSESSION_DISPUTE_PCT

  The percentage of total elapsed time where the ball was in play but neither team had possession.

• TIME_ON_GROUND_LOOSE

  Time in seconds that a player was loose during a game.

• TIME_ON_GROUND_LOOSE_PCT

  Percentage of time that a player was loose during a game.

The complete 2023 season of the NAB AFLW league is now available from the AFL API. This article describes how you can access AFLW 2023 matches and what API endpoints apply to them.

AFLW League​

The AFLW League has been assigned league Id 3, which you can see here when you call the Leagues endpoint.

You can call every Season endpoint using league Id 3, they all support AFLW. Currently only the 2023 and (upcoming) 2024 seasons are available from the API, so you will receive a 404 error if you call on the prior seasons.

AFLW Matches​

AFLW match data is accessed the same way as AFL Premiership matches; by looking up their match ids and calling the match endpoints.

As with the AFL Premiership, you can look up AFLW matches via the Season Fixture endpoint (enter league Id 3, level Id 1, season 2023) and get their match ids from there.

AFLW matches are supported by all the match endpoints, including the transactions endpoint if you are licensed to access it.

Sandbox AFLW Match Replay​

The Sandbox environment contains a replaying AFLW match, starting at the same times as the other matches. Note however, as AFLW match quarters are shorter than Premiership matches, the match status timing table doesn't completely align with the AFLW match.

Unsupported Metrics​

The following metrics do not support AFLW matches and are not returned via the match statistic endpoints.

GET Endpoints​

The match stat GET endpoints now provides a new filter parameter called "lastXSeconds". This parameters filters the stats so they only count transactions that occurred on or within the last 'X' seconds of the match.

If used on a live match and called periodically, the stats will go up and down based on what's happened in the last number of seconds. As it is a 'seconds' filter, enter 300 to filter the last 5 minutes, 600 for last 10.

From and To Period Seconds​

Two more parameters have been added to the endpoints alongside lastXSeconds: fromPeriodSeconds and toPeriodSeconds.

These can be used to filter statistics to a particular range of time within a quarter. They can be used independently of each other, where they will run from the start/end of the quarter, or together to focus on a mid-quarter window.

POST Endpoints​

The match stat POST endpoints also support these parameters, they can be supplied in each metic request, and in different combinations in each request. They perform the same filtering as they do for the GET Endpoints.

R Package Support

The R package's getPlayerStats and getSquadStats function also include 'lastXSeconds' parameters to be used in the same fashion as calling the API endpoints directly. It too supports using the parameters in the getPlayerStatsPOST and getSquadStatsPOST endpoints. See here for more details.

Over the past few weeks, the team have been busily working on some new time parameters to the match statistics endpoints. They are intended to filter stats to what happened in a specific time period within a quarter, or to filter to the last few minutes of activity.

fromPeriodSeconds and toPeriodSeconds can be used to analyse performance within a specific time period in a match, especially when used with a period filter so you can examine performance in the first 5 minutes of every priod.

If used on a live match (and without a period filter), lastXSeconds gets you the stats from say the last 5 or 10 minutes of play. Best used in concert with a metric filter to keep the endpoint response small and manageable.

These new parameters will be implemented on both GET and POST endpoints (illustrated here on GET) and on both squad and player stats endpoints. They will also be available via the R & Python API Support Packages.

The AFL API provides XY coordinates of several match events, returned by a variety of endpoints such as:

• Transactions endpoint
• Chains endpoint
• Shots endpoint
• Entries endpoint

When used in combination with the venue dimensions (Venue endpoint), the coordinates can be used to plot where these events occurred on a graph.