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mcekovic / tennis-crystal-ball

Ultimate Tennis Statistics and Tennis Crystal Ball - Tennis Big Data Analysis and Prediction
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Quarter-Final Streaks count and Tour Finals #358

Closed Penseeeternelle closed 3 years ago

Penseeeternelle commented 3 years ago

Hi, i was wondering the last time Rafa lost before the quarter-finals of a tournament. And surprised not to see his current streak on the top list since it happened for the last time in 2019. UTS ends a quarter-final streak when a player has lost in the round robin stage at the Tour Finals. It shouldn't, right ?

Keep up the great work !

mcekovic commented 3 years ago

Could you tell me exactly which page is this about, is it about the Player Profile's Matches, Events or Streaks page?

Penseeeternelle commented 3 years ago

It's about the record page "Quarter-Final streak" https://www.ultimatetennisstatistics.com/record?recordId=QuarterFinalStreak. I just checked:

So it's looks like a "tournament problem" not a "match problem". It's related to the record pages, the player event pages, not player match pages nor player streak pages.

mcekovic commented 3 years ago

Thanks for the detailed information. But I think it works like it should. If a player lost in the RR phase of the Tour Finals, he/she did not reach QF+ phase. So in the Records and Player Events page, when selecting QF+, events where the player did not pass RR stage should not be counted. In the Player Matches page QF+ filter should include only SF and F matches, not RR matches.

Regards, Mileta

On Tue, May 25, 2021 at 10:32 PM Penseeeternelle @.***> wrote:

It's about the record page "Quarter-Final streak" [ https://www.ultimatetennisstatistics.com/record?recordId=QuarterFinalStreak ].

I just checked:

So it's looks like a "tournament problem" not a "match problem". It's related to the record pages, the player event pages, not player match pages nor player streak pages.

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mcekovic commented 3 years ago

P. S. RR is not something that is before SF, it is something that is before KO (knock-out) rounds. Thus RR is always before all KO rounds, including QF (if it is present as KO round). There were RR tournaments in the past that had QF or even R16 included in the KO phase (like the old Davis Cup from a couple of years ago), as well as there were some tournaments with only F as the KO phase.

On Wed, May 26, 2021 at 10:17 AM Mileta Cekovic @.***> wrote:

Thanks for the detailed information. But I think it works like it should. If a player lost in the RR phase of the Tour Finals, he/she did not reach QF+ phase. So in the Records and Player Events page, when selecting QF+, events where the player did not pass RR stage should not be counted. In the Player Matches page QF+ filter should include only SF and F matches, not RR matches.

Regards, Mileta

On Tue, May 25, 2021 at 10:32 PM Penseeeternelle @.***> wrote:

It's about the record page "Quarter-Final streak" [ https://www.ultimatetennisstatistics.com/record?recordId=QuarterFinalStreak ].

I just checked:

So it's looks like a "tournament problem" not a "match problem". It's related to the record pages, the player event pages, not player match pages nor player streak pages.

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/mcekovic/tennis-crystal-ball/issues/358#issuecomment-848239637, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAPUVTAM25AN4A3V45KCDATTPQCOJANCNFSM45NRQYEQ .

Penseeeternelle commented 3 years ago

There are several ways to understand/see it. Thx for detailing, i got yours :) I was thinking it in terms of QF = 8 players remaining. So for me, being qualified for the ATP Finals means a QF, as it could be the case for a classic single elimination tournament with 8 participants. You do consider the Round Robin as a "preliminary stage" which makes sense ! It's a pity for Rafa ^^ but i guess you're more a Nole fan :p.

Without transition, Federer miss a match on hard. According to UTS he's 776-156 on hard but it's actually 783-156. (You do not record Laver Cup whichin Federer is 6-0, so there is still one victory missing). I search a bit it's during the year 2014. The UTS yearly total is correct (73-12), but summing all surfaces you got 72-12: (hard 55-7, clay 8-4, grass 9-1).

The error is related to the player profile, timeline, performance and matches tabs:

The weird thing is UTS got the correct Federer Davis Cup record (40-8).

mcekovic commented 3 years ago

Thanks for raising the issue about the Federer match. It is actually in the UTS database, but with no specified surface: https://www.ultimatetennisstatistics.com/playerProfile?playerId=3819&level=D&tab=matches&season=2014 That is why total is correct, but sum by surface is not.

On Wed, May 26, 2021 at 6:45 PM Penseeeternelle @.***> wrote:

There are several ways to understand/see it. Thx for detailing, i got yours :) I was thinking it in terms of QF = 8 players remaining. So for me, being qualified for the ATP Finals means a QF, as it could be the case for a classic single elimination tournament with 8 participants. You do consider the Round Robin as a "preliminary stage" which makes sense ! It's a pity for Rafa ^^ but i guess you're more a Nole fan :p.

Without transition, Federer miss a match on hard. According to UTS he's 776-156 on hard but it's actually 783-156. (You do not record Laver Cup whichin Federer is 6-0, so there is still one victory missing. I search a bit it's during the year 2014. The UTS yearly total is correct (73-12), but summing all surfaces you got 72-12: (hard 55-7, clay 8-4, grass 9-1.

The error is related to the player profile, performance and matches tabs:

- https://www.ultimatetennisstatistics.com/playerProfile?playerId=3819&tab=matches&season=2014&surface=H http://url

https://www.ultimatetennisstatistics.com/playerProfile?playerId=3819&tab=performance&season=2014 http://url

The weird thing is UTS got the correct total for Roger Davis Cup match (40-8).

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