Fa/Possession

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"Fa/Possession" is being translated - progress: 100%

مقدمه

هنگامی که یک بازی برگزار میشود، مالکیت توپ تیم شما در یک دقیقه ی خاص تعیین کننده ی میزان شانس شما برای گلزنی می باشد . که مالکیت توپ نیز به بازیسازهای هردوتیم بستگی دارد.

در پایان نیمه ی اول(45 دقیقه) و نیز پایان نیمه ی دوم(90 دقیقه). این درصد با یک فرمول محاسبه می شود که بستگی به سطح بازیسازی هر دو تیم در یک دقیقه ی خاص دارد.

فرمول

Possession(your_team) = 
100 * (Midfield_(your_team) / (Midfield_(your_team) + Midfield(opponents_team)) )

• سطح مقیاس هافبک ها: 1=افتضاح(خیلی کم) ، 2=افتضاح(کم) ...
• یا به این صورت ممکن است سطح بندی شود : 0.00=افتضاح(خیلی کم) ، 0.25=افتضاح(کم) ، 0.50=افتضاح(زیاد) ، 0.75=افتضاح(خیلی زیاد) ، 1.00=اسفبار(خیلی کم) ...
• شما می توانید پیاده سازی فرمول را در سایت زیر امتحان کنید.

The HattriX-Ray

Observation

One consequence of the formula (in terms of gameplay) is that as the average midfield level gets higher, possession differences get smaller for the same difference in midfield levels. For example:

• disastrous (very low) vs wretched (very low) (1 level) = 71% possession
• solid (very low) vs 'excellent (very low) (1 level) = 54%

Also, the midfield values used in the formula are the ones on that particular minute, while the midfield rating that is displayed at the end of the match is the average of the midfield during the 90 minutes. This explains the cases where discrepancies between the possession percentages at the 45th and 90th minute and the midfield rating seem to appear. Events such as:

• red cards (to players affecting the midfield)
• injuries (to players affecting the midfield)
• weather non-goal events (to players affecting the midfield)
• confusion

affect the midfield from the time the event is reported, hence affecting the possession as well.

Player stamina may alter possession minute-to-minute, if a player affecting the midfield is below excellent stamina, but this will not produce an event in the match report.

Additional factors that affect midfield ratings uniformly throughout the match include:

• overconfidence
• Team Attitude
• Playing Counter attack

Other

Possession vs goal opportunities nonlinearity

مطلب زیر در نتیجه تجربیات و یا تحقیقاتی که کاربران هتتریک انجام داده اند به دست آمده است- که این یعنی صحت و دقت آن به وسیله منابع رسمی سایت تایید نشده است و در نتیجه آنها لزوما واقعیت های بازی را منعکس نمی کنند. لطفا این را در نظر داشته باشید

Statistical analysis over the goal opportunities distribution taking into consideration the possession levels suggest that the relation between the possession and the number of chances your team has is far from being 1:1. The numbers suggest that you will most likely get 9 or 10 chances in the game if you have 65% possession.

• When you have 54% possession, you will most likely get 6 out of 10 chances.
• When you have 57% possession, you will most likely get 7 out of 10 chances.
• When you have 62% possession, you will most likely get 8 out of 10 chances.

The formula is believed to be (for the % of chances for Team A): midfield_rating_A^e/(midfield_rating_A^e+midfield_rating_B^e), where e=2.72 (e is the base of the natural logarithm, http://en.wikipedia.org/wiki/Euler's_formula)

It is possible to see a a table which shows the percentage of chances that a team would get depending on the midfield of both teams. For example, if team A's midfield rating is wretched low (2.25) and team B's midfield rating is poor high (3.5), then team A will get the 23% of the chances.

Although this nonlinearity is widely believed, HT-Hasse is on record with a conference post stating that the chance a team will get a scoring chance at a particular point in the match is exactly equal to their possession percentage. This statement, however, has later been dismissed by HT-Tjecken, saying "If that's true, then Hasse was most probably hallucinating"