Looking at the data:
First off, it's a bit hilarious that alhazi ranks at the very top with 488.67%. That means that, in the time difference between an average alhazi loss and an average alhazi win, alhazi has enough time to start and finish nearly 5 average alhazi 1v1 ladder games.
An average alhazi win takes about 2 and a half days. An average alhazi loss? Nearly 26 days. Pretty big difference. His losses also take 8 turns longer than his wins.
However, there's some serious caveats. For starters, we only had a sample size of 5 losses and 45 wins- 5 losses that could've easily occurred simultaneously while alhazi took 2 10-day vacations. My "finish" times were actually the time taken from the pick round to the final turn, so I didn't factor in any time taken to surrender, and my start times were actually the turn 1 times- because I couldn't find where to get distribution turn times from the query game API and had some issues scraping actual end times from the ladder (that I've since fixed). I also ended up intentionally leaving off the pick times because you have no idea who's winning/losing during the pick stage and time-skew based on your opponents (taking longer when your opponent's got a decent rating) would likely be most exaggerated during the pick stage.
Moreover, looking at alhazi again, you'll notice that he's got more than 5 non-expired losses on the 1v1 ladder- but a lot of them weren't included because they ended in alhazi getting booted. Why? I wanted to keep weird edge cases from throwing off the data (e.g., wins by boot or losses by boot that occurred when a player was on vacation IRL).
Most importantly, this shouldn't be taken as conclusive evidence of stalling (instead, it's hopefully a starting point). You don't have full control over the start-end time of a game- your opponent's part of the equation, too, and they might just be playing more slowly when they're winning against you to avoid screwing things up. If there's a significant skill difference between the players you lost against and the players you won against, and you tend to play more slowly against higher rated players, that could explain why you take about twice as long to finish the game when you're losing. And of course, we're looking at games in hindsight- it might not have been evident to you that you were losing, and you just pressed on.
Let's take Buns as an example:
RANK PLAYER NAME (LADDER ID; CLAN NAME): L-WPCT RNK RTNG CT W L L-W FINISH TIME WIN FINISH TIME LOSS FINISH TIME AVG FINISH TIME L-WTRN W-TRN L-TRN AVGTRN
29. Buns157 (ID: 10115; clan: Icelandic Turtles): 45.89% 1 2291 38 32 6 1 day, 23:29:02.500000 3 days, 23:59:11 5 days, 23:28:13.500000 4 days, 7:29:01.921052 1.95 9.88 11.83 10.18
He finishes wins in about 4 days and losses in about 6, leaving a difference of about 2 days or about half a game- and a turn difference of about 2 more turns taken per loss. But we're looking at a sample size of just 6 losses here, and those could've been slower because of Buns' opponents realizing they were in a winning position against the ladder #1 and playing more slowly to not screw things up. Plus people could just be surrendering to Buns faster than they should- your opponents have more control over when your wins end than you do, after all.
And last but not least, a note about percentages: That 45.89% doesn't meant that Buns finishes 46% of a new game during a loss. Keep in mind that games are concurrent and that turns/time to finish varies. If you've got 5 games going on at once, that extra time could mean you've finished 4 wins with the extra time while waiting on the loss, made some progress in 4 other ongoing games, or something in between.
Negative percentages mean your wins tend to take longer than you're stalling. This doesn't mean you're "reverse-stalling"- just that your average opponent takes longer to lose than you do. So, in a way, you stall less than the people you play against.
Edited 5/31/2016 21:55:53