{
  "id": 278375,
  "title": "Field Goal Events on Tracking",
  "url": "/competitions/nfl-big-data-bowl-2022/discussion/278375",
  "author_name": "",
  "post_date": "2021-10-14T02:52:17.177189400Z",
  "votes": 1,
  "comment_count": 1,
  "views": 0,
  "content": "<p>Was hoping for clarification on the difference between 'field goal attempt' and 'field goal' under the 'events' column in the tracking data? Would 'field goal attempt' be the point of contact when the ball is struck or when the players are set up and awaiting the snap? </p>\n<p>If that is not what 'field goal attempt' is, then would each play start in frame 1? Start of play (in respect to field goals) being the kicker is lined up awaiting for the kick.</p>\n<p>Thank you and best of luck to all!</p>",
  "messages": [
    {
      "id": "1544013",
      "postDate": "10/14/2021 02:52:17",
      "content": "<p>Was hoping for clarification on the difference between 'field goal attempt' and 'field goal' under the 'events' column in the tracking data? Would 'field goal attempt' be the point of contact when the ball is struck or when the players are set up and awaiting the snap? </p>\n<p>If that is not what 'field goal attempt' is, then would each play start in frame 1? Start of play (in respect to field goals) being the kicker is lined up awaiting for the kick.</p>\n<p>Thank you and best of luck to all!</p>",
      "rawMarkdown": "Was hoping for clarification on the difference between 'field goal attempt' and 'field goal' under the 'events' column in the tracking data? Would 'field goal attempt' be the point of contact when the ball is struck or when the players are set up and awaiting the snap? \n\nIf that is not what 'field goal attempt' is, then would each play start in frame 1? Start of play (in respect to field goals) being the kicker is lined up awaiting for the kick.\n\nThank you and best of luck to all!",
      "votes": null
    },
    {
      "id": "1544707",
      "postDate": "10/14/2021 15:00:49",
      "content": "<p>\"field_goal_attempt\" is meant to represent the moment in time when the field goal kick actually occurs.</p>\n<p>\"field_goal\" is used to mark the moment a field goal has successfully completed, signified by the ball crossing the goal posts on a field goal attempt.</p>\n<p>For field goals and extra points, the play will start at event \"ball_snap\".</p>\n<p>Admittedly, while the \"ball_snap\" event is tagged fairly reliably, the tagging of \"field_goal\" and \"field_goal_attempt\" events can be unreliable. I would suggest checking the rows with those events with the <code>x</code>, <code>s</code>, and/or <code>a</code> variables of the ball (when <code>displayName</code> == \"football\") to make sure the events are tagged on the correct frame.</p>\n<p>For example, you can figure out when the \"field_goal\" was made/missed by filtering for when the <code>x</code> variable for the ball is closest to the back of the target end zone. See the \"Clean Data\" section in either of our <a href=\"https://www.kaggle.com/c/nfl-big-data-bowl-2022/discussion/275296\" target=\"_blank\">Big Data Bowl Demos</a> to see an example of how to do this in R or Python.</p>",
      "rawMarkdown": "\"field_goal_attempt\" is meant to represent the moment in time when the field goal kick actually occurs.\n\n\"field_goal\" is used to mark the moment a field goal has successfully completed, signified by the ball crossing the goal posts on a field goal attempt.\n\nFor field goals and extra points, the play will start at event \"ball_snap\".\n\nAdmittedly, while the \"ball_snap\" event is tagged fairly reliably, the tagging of \"field_goal\" and \"field_goal_attempt\" events can be unreliable. I would suggest checking the rows with those events with the `x`, `s`, and/or `a` variables of the ball (when `displayName` == \"football\") to make sure the events are tagged on the correct frame.\n\nFor example, you can figure out when the \"field_goal\" was made/missed by filtering for when the `x` variable for the ball is closest to the back of the target end zone. See the \"Clean Data\" section in either of our [Big Data Bowl Demos](https://www.kaggle.com/c/nfl-big-data-bowl-2022/discussion/275296) to see an example of how to do this in R or Python.",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 1544707,
      "author_name": "tombliss",
      "author_url": "",
      "post_date": "10/14/2021 15:00:49",
      "content": "<p>\"field_goal_attempt\" is meant to represent the moment in time when the field goal kick actually occurs.</p>\n<p>\"field_goal\" is used to mark the moment a field goal has successfully completed, signified by the ball crossing the goal posts on a field goal attempt.</p>\n<p>For field goals and extra points, the play will start at event \"ball_snap\".</p>\n<p>Admittedly, while the \"ball_snap\" event is tagged fairly reliably, the tagging of \"field_goal\" and \"field_goal_attempt\" events can be unreliable. I would suggest checking the rows with those events with the <code>x</code>, <code>s</code>, and/or <code>a</code> variables of the ball (when <code>displayName</code> == \"football\") to make sure the events are tagged on the correct frame.</p>\n<p>For example, you can figure out when the \"field_goal\" was made/missed by filtering for when the <code>x</code> variable for the ball is closest to the back of the target end zone. See the \"Clean Data\" section in either of our <a href=\"https://www.kaggle.com/c/nfl-big-data-bowl-2022/discussion/275296\" target=\"_blank\">Big Data Bowl Demos</a> to see an example of how to do this in R or Python.</p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "1544013": "Was hoping for clarification on the difference between 'field goal attempt' and 'field goal' under the 'events' column in the tracking data? Would 'field goal attempt' be the point of contact when the ball is struck or when the players are set up and awaiting the snap? \n\nIf that is not what 'field goal attempt' is, then would each play start in frame 1? Start of play (in respect to field goals) being the kicker is lined up awaiting for the kick.\n\nThank you and best of luck to all!",
    "1544707": "\"field_goal_attempt\" is meant to represent the moment in time when the field goal kick actually occurs.\n\n\"field_goal\" is used to mark the moment a field goal has successfully completed, signified by the ball crossing the goal posts on a field goal attempt.\n\nFor field goals and extra points, the play will start at event \"ball_snap\".\n\nAdmittedly, while the \"ball_snap\" event is tagged fairly reliably, the tagging of \"field_goal\" and \"field_goal_attempt\" events can be unreliable. I would suggest checking the rows with those events with the `x`, `s`, and/or `a` variables of the ball (when `displayName` == \"football\") to make sure the events are tagged on the correct frame.\n\nFor example, you can figure out when the \"field_goal\" was made/missed by filtering for when the `x` variable for the ball is closest to the back of the target end zone. See the \"Clean Data\" section in either of our [Big Data Bowl Demos](https://www.kaggle.com/c/nfl-big-data-bowl-2022/discussion/275296) to see an example of how to do this in R or Python."
  },
  "source": "meta"
}