Companies like Opta, Stasbomb, Wyscout, etc have the own proprietary models, however the

initial data input i.e. attempt location, type of attempt (left foot, header, etc.), assist type (cross, through ball, rebound etc.) is input manually.

Plenty of room for variance and as with any statistic the usefulness is in how it is interpreted and used.

Posted By: The Gaffer on November 3rd 2025 at 15:50:49

Message Thread

Sargent's chance in fifth minute worth 0.93xG (NCFC) - Kangol Canary, Nov 3, 10:23:22
- Xg (NCFC) - Nelsons final flanel, Nov 3, 11:15:28
- Sargent scores that last season, his confidence is shit AND he isn’t given… (NCFC) - Kentish Canary, Nov 3, 10:53:16
- If xG is so subjective maybe it should be scrapped until something more reliable is found (n/m) (NCFC) - footymadman, Nov 3, 10:48:53
- 0.89 on Fotmob (NCFC) - SCC 28, Nov 3, 10:31:17
  - 0.93, 0.89, 0.66.....do we have any other offers? (NCFC) - usacanary, Nov 3, 15:45:33
  - So its subjective based on an individuals opinion.... (NCFC) - usacanary, Nov 3, 12:59:06
    - No they use complex scientific models (NCFC) - SCC 28, Nov 3, 13:14:05
      - Ironic.....I have PhD and MSc in an actual scientific subject..... (NCFC) - usacanary, Nov 3, 15:43:57
        
        Too complex for you I’m afraid (n/m) (NCFC) - SCC 28, Nov 3, 18:04:02
      - So complex that 3 people cant agree including yourself.... (NCFC) - usacanary, Nov 3, 15:40:55
        
        Companies like Opta, Stasbomb, Wyscout, etc have the own proprietary models, however the (NCFC) - The Gaffer, Nov 3, 15:50:49
        
        Yes but how useful is xG..... (NCFC) - usacanary, Nov 3, 15:59:04
        
        xG doesn't predict outcomes but when used with other statistics/metrics it can be an (NCFC) - The Gaffer, Nov 3, 19:47:16
  - In real time it looked like he was really stretching for it (n/m) (NCFC) - jamesward, Nov 3, 10:40:17
    - It was right in front of me and it never looked like being a goal (NCFC) - mr carra, Nov 3, 10:53:28
      - Yep, no-one in the lower Barclay near me even moaned about him missing it (n/m) (NCFC) - jamesward, Nov 3, 10:55:26
        
        It’s a deceptive view in the stands (NCFC) - SCC 28, Nov 3, 12:27:55
        
        So xG depends on the angle its viewed from.....glad we cleared that up.... (n/m) (NCFC) - usacanary, Nov 3, 15:49:04
        
        Just watched it, and disagree (NCFC) - jamesward, Nov 3, 13:31:08

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