How to calculate a win/loss streak with matchup data?

[knielson]

I have some match data with home team and away teams and the outcome of the match. 

How in power BI can I flag the current win and loss streak at that current point in the season.

The grey columns are what I'm looking to create.

For example, Utah wins 3 matches in a row but loses their 4th, so their highest win streak is 3 and their current loss streak is 1. 

[v-yalanwu-msft]

Hi, @knielson ;

You could create a column by dax.

Current Win Streak = 
var _max=CALCULATE(MAX('Table'[natch_ id]),FILTER('Table',[LTeam]=EARLIER('Table'[WTeam])&&[natch_ id]<EARLIER('Table'[natch_ id])))

var _min=CALCULATE(MIN('Table'[natch_ id]),FILTER('Table',[WTeam]=EARLIER('Table'[WTeam])&&[natch_ id]<EARLIER('Table'[natch_ id])))
var _value=IF(_max>_min,_max,_min)
var _res= CALCULATE(COUNT('Table'[WTeam]),FILTER('Table',[natch_ id]>=_value&&[natch_ id]<=EARLIER('Table'[natch_ id])&&[WTeam]=EARLIER('Table'[WTeam])))
return _res

Current Loss Streak = 
var _max=CALCULATE(MAX('Table'[natch_ id]),FILTER('Table',[WTeam]=EARLIER('Table'[LTeam])&&[natch_ id]<EARLIER('Table'[natch_ id])))

var _min=CALCULATE(MIN('Table'[natch_ id]),FILTER('Table',[LTeam]=EARLIER('Table'[LTeam])&&[natch_ id]<EARLIER('Table'[natch_ id])))
var _value=IF(_max>_min,_max,_min)
var _res= CALCULATE(COUNT('Table'[LTeam]),FILTER('Table',[natch_ id]>=_value&&[natch_ id]<=EARLIER('Table'[natch_ id])&&[LTeam]=EARLIER('Table'[LTeam])))
return _res

The final show:

Best Regards,
Community Support Team _ Yalan Wu
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[knielson]

This is great. I noticed that it doesn't reset the streak in the event of a tie. How could that be done?

[v-yalanwu-msft · Accepted solution]

Hi, @knielson ;

Try it.

Current Win Streak = 
var _max=CALCULATE(MAX('Table'[natch_ id]),FILTER('Table',[LTeam]=EARLIER('Table'[WTeam])&&[natch_ id]<EARLIER('Table'[natch_ id])))

var _min=CALCULATE(MIN('Table'[natch_ id]),FILTER('Table',[WTeam]=EARLIER('Table'[WTeam])&&[natch_ id]<EARLIER('Table'[natch_ id])))
var _value=IF(_max>=_min,_max,_min)
var _res= CALCULATE(COUNT('Table'[WTeam]),FILTER('Table',[natch_ id]>=_value&&[natch_ id]<=EARLIER('Table'[natch_ id])&&[WTeam]=EARLIER('Table'[WTeam])))
return _res

Current Loss Streak = 
var _max=CALCULATE(MAX('Table'[natch_ id]),FILTER('Table',[WTeam]=EARLIER('Table'[LTeam])&&[natch_ id]<EARLIER('Table'[natch_ id])))

var _min=CALCULATE(MIN('Table'[natch_ id]),FILTER('Table',[LTeam]=EARLIER('Table'[LTeam])&&[natch_ id]<EARLIER('Table'[natch_ id])))
var _value=IF(_max>=_min,_max,_min)
var _res= CALCULATE(COUNT('Table'[LTeam]),FILTER('Table',[natch_ id]>=_value&&[natch_ id]<=EARLIER('Table'[natch_ id])&&[LTeam]=EARLIER('Table'[LTeam])))
return _res

Best Regards,
Community Support Team _ Yalan Wu
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.