Ipsc Practiscore

[David]

Sorrybut this is NOT happening on our practiscore APP at the moment and has NOT been scoring that way for some time.

your EG show bob scoring 400.0000 in his catagory as in open , production , what ever. and his score HAS flowed through to the combined view it shows he scored 400.0000 the APP we are using DOES NOT have the score of the highest point score staying the winner . we had 2 shooters score the identical score of 385.0000 , both shooting minor, in different classes, 1 Classic , 1 Standard. yet in combined they showed up as 3rd and 14th and the person listed as the winner of combined was some 20+ points less in his class of production Minor. i can provide a link to the match if requested. there is an issue just not sure what it is.

If you want to verify the overall standing in combined results - take these shooters, look at their stage points in combined results and add them up. That will be their match points in combined results.

@Jamie_Farraher you are still missing the important part that stage points in individual division stage results are NOT used to calculate combined stage results. Only hit factor values are used. Essentially combined results are basically the same match as if all competitors are shooting in the same division.

When I import the original match into WinMSS with PCC and handgun shooters, it imports the match as a handgun match, and the PCC shooters are basically hidden in all the results (seeing that it is a handgun match). So when you run any results reports, it only shows production, open, standard, etc.

Still not following what the issue is. I just created a dummy Handgun match in PractiScore. Added few competitors in HG and PCC divisions. Scored and exported to WinMSS. Can see both HG and PCC competitors in the results reports.

If you want any specifics we have to look at your PractiScore match. Email the export file *.psc at sup...@practiscore.com and specify details for any issues you experiencing in that email, including competitor names, step-by-step instructions or any other details necessary to reproduce issue.

We ran the combined match this past weekend. Had no issue splitting the match with the export to WinMSS! So, thanks a million! Only issue was that the PCC Irons exported to WinMSS as PCC Optics. Something that needs to be updated perhaps?

I shot an indoor match a couple of days ago, and I can't seem to understand what Practiscore is telling me. According to the "Overall" view, I came in ahead of all the other Production shooters. However, when I switch to viewing just the results for Production, I find that I'm in second place. I understand how HF is calculated, and my HF is slightly higher than the HF of the shooter whom I may or may not have beaten. To get rid of some decimal places and simplify things a bit, my HF was 6.1 and his was 6.0.

If I understand correctly, match placement is determined by dividing one's overall HF by the winner's overall HF to determine what percentage of the overall points one receives. I'm not a great mathematician, but it seems to me that a shooter with a higher overall HF should always come out ahead of a shooter with a lower HF no matter what. So what am I missing?

Here's a fact that might be relevant: The match consisted of three classifier stages and one longer stage. The long stage was worth almost as many points as the combined points of the classifier stages, and the "other shooter" in question did significantly better than I did on that stage. Could that fact be relevant here?

You need to factor in the fact that winning a stage works like the electoral college - the shooter who wins the stage gets all the available points for that stage, and everyone else gets a fraction of those points based on where they place in relation with the stage winner. When you move from division winner (which is really what matters) to overall, Practiscore is recalculating who won the stage and then redistributes the fractional points.

Match points are determined by the sum of the stage points, right? Stage points are determined by: (available stage points)*(Your HF/High HF). Where the variability comes in is the source of the High Hit Factor. Variations in stage winners between overall and production can account for the difference in match placement. This has been traditionally called the "flip-flop"

If I understand correctly, match placement is determined by dividing one's overall HF by the winner's overall HF to determine what percentage of the overall points one receives. I'm not a great mathematician, but it seems to me that a shooter with a higher overall HF should always come out ahead of a shooter with a lower HF no matter what. So what am I missing?

Ah, I think I'm beginning to understand! Within Production, the "other guy" won more points, largely because he won the stage with the most points. Overall, however, some PCC guy probably won every stage (I'll have to go back and check). Am I on the right track? I can see I have more pondering to do....

Match placement isn't by "overall HF" because that doesn't actually exist in USPSA. As people have said, the match points you get on a particular stage are based on your HF on that stage, compared to the high HF on that stage. Your match placement is then based on the total of the match points you get from all stages added together.

In the overall results, the high HF for a particular stage is based on the highest out of everyone. In the results that actually count (which are your Production division results), the high HF for each stage is based on the highest Production HF for that stage. As such, the match points you get for a particular stage for division results are often different than the points you get for overall results.

And doing all the math by hand was the reason some clubs took a month to get scores out back in the day. And made errors. And made their own excel sheets and formatting. And why you had to go to each club's website to find scores. Getting scores in a timely and accurate manner was the most annoying thing about matches, to me, prior to practiscore.

Consider two Production shooters in a simple match with just two stages, 100 points per stage. Shooter 1 wins stage 1 by 5% (100 to 95 points), shooter 2 wins stage 2 by 8% (100 to 92 points). The overall Production winner is based on who won by a larger margin their respective stage - shooter 2 wins the match with 195 points to 192 for shooter 1.

To summarize, what happens when you combine divisions is that the top combined shooter "scales" point differences between competitors in other divisions (while percentage differences are intact), which in turn can swap rankings if this scaling is uneven. For example, any stage that is particularly low-capacity unfriendly will have the totals skewed because the hi-caps will run up the HF and the differences between the lo-caps will be squashed in terms of the total points.

At some point you need more than that. There are stages where you need to know if you should push for accuracy or for speed. Also there are moments at the match when you can use additional information to decide if you should continue shooting the best you can or you should go full throttle.

One can say the same about calculating the hit factor - "too complicated, I'll have computer figure it out." The only problem is that then you don't know whether to wait on that swinger's second pass or take a possible mike, whether to engage a disappearing target, or how much extra time you can spend on difficult shots to get A vs. C.

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