1ms over 2000m Mahe Drysdale

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networkn

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#201350 15-Aug-2016 10:39

Unbelievably close difference between Gold and Silver.

This means there was 5mm of Mahes' vehicle over the line more than his competitor, over a 2000m course. (Hopefully our math was correct).

Apparently the smallest margin between 1st and 2nd in Olympic History.

Wondering how they worked it out. Even a 240FPS Camera was unlikely to capture that difference, and if it was sensor based, you can't understand them taking sooo long to work it out.

Out of interest could they have awarded 2 golds? What then happens to Silver and Bronze? Are there 4 "winners"?

Well done to Mahe and to Croat Damir Martin

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#1611762 15-Aug-2016 10:46

What a finish, I thought he was done, but as he said, he 'chucked in a couple of short ones' and just nosed it in. Closer than the Evers-Swindell win in Beijing..

If they had awarded 2 golds, I think Silver would have been missed out, and the Bronze would have been awarded as per normal. Thats what they do in the swimming (been a couple of dead heats there for second and they award the number of medals that should be awarded (ie. 3) and the next down misses out). In the case where more than 3 dead-heat, as in the swimming when the Singaporean beat Phelps - there were two other swimmer on the same time as Phelps, so the Gold went tot he Singaporean, and three Silvers were awarded - no Bronze.

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#1611764 15-Aug-2016 10:48

They have given out more than one silver in the swimming, there were three I think in one race!, and still gave out the bronze as well.

Edit: I'm sure they gave the bronze out as well?

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#1611768 15-Aug-2016 10:51

Theres been a couple of dual awards this year already. Interesting they were able to find a difference, else both would have been awarded.

Comes up when there is a first equal, womens swimming had a couple. They skip silver, both got gold and there was a bronze following.

Under the Olympics' scoring rules, when two athletes tie, they each get a medal — meaning that while this race has two gold medalists, no one gets a silver. Instead, Sweden's Sarah Sjostrom won a bronze medal after finishing 0.29 behind the winners.

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#1611811 15-Aug-2016 11:05

CYaBro:

They have given out more than one silver in the swimming, there were three I think in one race!, and still gave out the bronze as well.

Edit: I'm sure they gave the bronze out as well?

Nope

https://en.wikipedia.org/wiki/Swimming_at_the_2016_Summer_Olympics_–_Men%27s_100_metre_butterfly

This is Joseph Schooling (Gold medal winner) with Michael Phelps:

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#1611838 15-Aug-2016 11:28

Cool picture.

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#1611861 15-Aug-2016 11:51

First thing that popped into my mind when I saw this topic.

And well done Mahe!

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#1611872 15-Aug-2016 12:14

This is why there are so many ties in swimming.

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#1611899 15-Aug-2016 13:17

Wow. Interesting article.

I'm astounded that there could be 3cm difference between 2 lanes in the same pool. Or does a 3cm tolerance mean that potentially there could be 6cm difference between 2 lanes?

I can understand the pool concrete expanding and contracting with temperature and so on, but I'd have thought it would be reasonably uniform. And that the water and air temperature in an indoor pool would also be quite well controlled, again ensuring control of the expansion/contraction. And that the pool could then be constructed to be exactly the right size and shape at some specified water and air temperature.

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#1611912 15-Aug-2016 13:43

networkn:

Unbelievably close difference between Gold and Silver.

This means there was 5mm of Mahes' vehicle over the line more than his competitor, over a 2000m course. (Hopefully our math was correct).

Apparently the smallest margin between 1st and 2nd in Olympic History.

Wondering how they worked it out. Even a 240FPS Camera was unlikely to capture that difference, and if it was sensor based, you can't understand them taking sooo long to work it out.

Out of interest could they have awarded 2 golds? What then happens to Silver and Bronze? Are there 4 "winners"?

Well done to Mahe and to Croat Damir Martin

Although they did have the same time, the photo finish did show Mahe just ahead. Although he was very lucky as is all came down to the timing of the last stroke because the other guy was ahead of him, and had caught him up, and you would almost put money on the other guy having won if you had seen it in realtime. That is what sport is all about, sometime you win, sometimes you lose. Very similar to Valeries throw, noone thought she would lose up until the second to last throw. Then she was left having to play catchup, which was almost impossible.

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#1611951 15-Aug-2016 14:33

mattwnz:

networkn:

Unbelievably close difference between Gold and Silver.

This means there was 5mm of Mahes' vehicle over the line more than his competitor, over a 2000m course. (Hopefully our math was correct).

Apparently the smallest margin between 1st and 2nd in Olympic History.

Wondering how they worked it out. Even a 240FPS Camera was unlikely to capture that difference, and if it was sensor based, you can't understand them taking sooo long to work it out.

Out of interest could they have awarded 2 golds? What then happens to Silver and Bronze? Are there 4 "winners"?

Well done to Mahe and to Croat Damir Martin

Although they did have the same time, the photo finish did show Mahe just ahead. Although he was very lucky as is all came down to the timing of the last stroke because the other guy was ahead of him, and had caught him up, and you would almost put money on the other guy having won if you had seen it in realtime. That is what sport is all about, sometime you win, sometimes you lose. Very similar to Valeries throw, noone thought she would lose up until the second to last throw. Then she was left having to play catchup, which was almost impossible.

But why is is Mahe's number distorted!?

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#1611966 15-Aug-2016 14:37

itxtme:

Angle, lens curve, lighting, reflection, any number of things I'd expect (having discussed this very photo with a photography nut here).

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#1611969 15-Aug-2016 14:42

You think thats distorted, take a look at the running race finish shots! It seems to be a rotating camera, so the images get stretched as its not quite in sync with the rotation of the beam.

Preeettty sure legs don't look like this on humans (not a rio pic but same technology)

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#1611978 15-Aug-2016 14:53

networkn:

itxtme:

Angle, lens curve, lighting, reflection, any number of things I'd expect (having discussed this very photo with a photography nut here).

But the question is when we are talking such small amounts of movement is the augmentation taken into consideration, and if so to what degree of specificity do they have it set to. These are big distances too, the camera is not right next to these two boats. I dont know the answer, but it begs the question right?

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#1612022 15-Aug-2016 15:36

Motion blur I expect. Remember the boats motion is a reasonably constant speed of momentum plus a periodic pulse/surge of motion with every stroke.

Mahe won by pure luck of being on a pushing forward stroke motion at the very time he crossed the line.

The image looks fine for me otherwise. Barrel distortion etc wouldn't come into effect over such a short distance, and it if did then it's clearly not the camera/lens combo for the job.

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#1612048 15-Aug-2016 16:21

You can imagine, though, that if it's a digital camera and scanning from top to bottom, that Mahe's boat is actually *another* 5mm ahead than it appears in the photo.

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