Discussion: New Split Analysis

This is cool--Attackpoint now seems to calculate Lost Time misses under the Split Analysis. It seems rather relevant to me and appears to use average pace calculations exceeding some allowed variance.

it uses your median% behind the fastest split to predict an expected split for each leg--median is better since average can be skewed by large mistakes. this is an accurate comparative indicator of your running speed, assuming you screw up less than half the controls. (otherwise it would probably be fine to use an even higher percentile than 50, since big variances in your splits are almost always down, not up)

anyways, if your actual split is either 25% or 30s longer than expected, then time lost is estimated at actual minus expected. this obviously works best when "superman" doesn't miss any controls.

let me know if it seems accurate (it was right on for me in many cases)...and ignore the mess that appears when you skip splits.

Nice! It seems like it could safely be more sensitive - I made several mistakes in the Long-O champs that aren't picked up. I guess once more people enter their splits it will fix things.

I looked at a few earlier races and compared the calculated against what I had subjectively estimated. It appears to pickup most of the controls where I boomed and seems to be close, plus and minus, to my own estimates. It didn't pickup some small things where I know I stopped or went the wrong way for a few steps then turned it around to correct. I find the miss calculation reassuring even if the many people out there who never make mistakes don't. It also lets the inconsistant orienteers like me compare more easily with others who make mistakes. Of course, I'd rather not make mistakes. As Attackpoint is helpful with motivation, a totaling of the delta and projection of time less misses would let us quickly compare the race with the better navigators and perhaps spur us to be more careful. Thanks!

Ken, excellent addition!

I checked a handful of my recent races - good and not so good ones - and it is very accurate in amount of time lost (versus my estimates) on true errors.

It doesn't pick up hesitations, or poor route choice decisions, but then I don't think it is intended to. but on the ones were I make true errors, the time loss is very accurate. The difference between your calculated miss, and my estimated miss it probably due to additional hestitation on top of the error.

Very cool...

Very nice. Checked out some old races and it picks up the most of the mistakes very accurately. Only off on the runs where I fall apart physically on the second half. Combines my mistakes in the first half with the slowness of the 2nd and concludes I did not miss much time, just that I am not very good. Guess it is not that far off after all.