I've also tweaked my Alternative Leaderboard page (placing by average speed rather than time due to the start and end points of people's attempts at segments not being the same) so you can look to see if your current PR on a segment is actually your real PR. Previously it would just compare people's current PR's from the top 50 of the Strava leaderboard.
http://veloviewer.com/NewLeaderboard.php
Only makes sense on short (under 1km) and straight segments where you get very little GPS drift so the difference in distance covered is due to the fluctuations in where the start/end positions are. One for the real maths/strava geeks out there! The context segment the page loads with should give you a good idea of what it's on about and clicking on the rider name takes you to the Strava page that shows the little blue line for each rider so if you click on 2 different riders you can see for yourself the discrepancies in line length.
http://veloviewer.com/NewLeaderboard.php
Only makes sense on short (under 1km) and straight segments where you get very little GPS drift so the difference in distance covered is due to the fluctuations in where the start/end positions are. One for the real maths/strava geeks out there! The context segment the page loads with should give you a good idea of what it's on about and clicking on the rider name takes you to the Strava page that shows the little blue line for each rider so if you click on 2 different riders you can see for yourself the discrepancies in line length.