Deanouk wrote:
jjjjjj wrote:I did that again at 46.2/46.4 with onscreen clock and physical clock, so the difference is definitely 0.2 seconds, not 0.4. I repeated that for 1:49.5 onscreen and 1:49.7 physical. And again I had onscreen clock of 2:18.6 as they are crossing the 200m mark (900m into the race) and you can't quite see the physical clock reading, but if you freeze just after, they read 2:19.4 onscreen and 2:19.6 physical, giving the same 0.2s difference. The upshot, they cross 900m at about 2:18.8 physical clock, but here we don't have the chest view, so we don't have a very accurate reading. Nevertheless, that gives 1:18.4. At 2:18.6 onscreen clock, their very short shadows are on the line, Centro's feet looking over the line. We adjust that to 2:18.8 again and same 600 split. Maybe a couple tenths faster.
I think I said that the difference between the on screen and stadium clocks was 0.3, but you're right, at some points it is 0.2, although if you do it enough times at the moments you can see both clocks, sometimes it's 0.2 and sometimes 0.3. But that is a moot point, because the official splits that come up on screen are 0.4 after the onscreen clock. Check the leader's on screen time at the finish line (300, 700, 1100, etc) and the official split times that appear on screen a few seconds later, as they start round the bend, are roughly 0.4 secs behind the on screen clock times. So when Centro crosses the 900m mark in 2:18.7, then I would suspect that the real official split would have been 2:19.1. Meaning the last 600 was 1:18.1, give or take 0.1.
Another way of looking at it, is if you just go by the on screen clock, then Centro passes 900 in 2:18.7 and he crosses the line (before it moves on to official time) in 3:36.8. Which again makes 1:18.1.
It certainly wasn't 1:17.9 and it was faster than the 1:18.4 someone else suggested.
Deano, how does Centro's last 600 here compare to Coe's last 600 in Moscow?
(I'm too lazy to look it up.)