Bay Sheffield results

You think over the last 10m of a 120m on grass is at top speed. Most velocity/distance graphs will show that top speed is hit between 40-70m, over the last 30m velocity is decelerating. On grass over the last 10m, the rate deceleration is even greater.

Maybe it would be more enlightening, if you read over some V/D graphs before launching into you’re imo.

That doesn’t change the fact that the speed over the last 10m is still going to be faster than the speed of the average 10m because of the much slower 0-10m and 10-20m segments.

Actually 10-20 v 100-110 splits on grass are very similar.

Average Splits from 9.9 100m guy

10-20 1.03
90-100 0.89

However 11.0 runner on grass over 120m

10-20m splits 1.07
100-110 split 1.07

Using the average velocity for Ballard 110 is a valid measure since 10-20 is equal to the the velocity over the last 10m. Rudimentary biomechanics at times can get boring.

If we had the 10-20m split, then you could add it, but the 10-20m split does not represent the average 10m split, which is what you have been using. In your own example, if 1.07 (10-20m split) was the average for 110m, then the time would be well under 12 even with reaction time factored in. You used the average split and added it and now you are using the 10-20m split and adding it, which would give you a different number.

Kind of irrelevant because Gault would still torch him head to head.

10-20 split is the same as the last 10m split, when using the average velocity for 110m on grass. The advantage of an faster 10m split from 100-110 is minimal because rates of deceleration on grass are higher.

Ave Vel over 100 v 110m is highly accurate. In 2004 Joshua Ross raced over both 120 & 100 on grass. The times were 10.41/ 12.37, ave vel 9.7ms & 9.61ms. Take the ave vel over 120 & apply them to 100, gives 10.31. Using the 120 ave vel gives 0.1 faster 100m time. In Ballard’s 110m he is only running one extra 10m split & given the fact that he would decelerate at greater rate then Joss, the 110/100 ave velo would result in less then 0.1 difference. If the maximum margin of 0.1 is used. Then Ballard’s 11.07 become 11.17 for 100m on grass. That still matches up well against 10.83 +1.3 on synthetic.

You’re earlier suggestion that comparing 110m vel is similar to using 200m WR vel is ridiculous. MJ had an additional 10x 10m splits.

After re doing the maths Gault may win over the 100m. But I don’t think Ballard would get torched. However if it was 120m on grass. I suspect Ballard may win.