ExamplePbix Added - Select first row of different rows with same calculated column value

Hi , sfernamer 

Thanks for your quick response ! Do you mean the [TimeOnCount] vaule in the [Def3] context filter is wrong .

You can try to use this dax to get the  [TimeOnCount] .

TimeOnCount Test = var _t  =FILTER( SUMMARIZE(ALLSELECTED('Hoja1'),'Hoja1'[Full_Quarter] , 'Hoja1'[Time_Def] , 'Hoja1'[Defensive Five] , 'Hoja1'[Def3] ,'Hoja1'[TimeOnCourt] , "flag" , [Test_Flag 2]) , [flag] = 1)
var _cur_def3 =VALUES(Hoja1[Def3])
var _t2= SUMMARIZE(_t ,[Def3],"timeoncount" ,[Grouped_TimeOnCourt_D5])
return
SUMX(FILTER(_t2,[Def3] in _cur_def3) , [timeoncount])

The result is as follows:

Thank you for your time and sharing, and thank you for your support and understanding of PowerBI! 

Best Regards,

Aniya Zhang

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