http://rawmarks.info/wiki/index.php?title=Main_Page&action=edit
not everyone can edit. Im pretty sure that they are submitted and verified before published.
The most likely answer for both marks being a 90 is that both lied within the 90th percentile of marks which isnt unreasonable to assume
it captures the whole trajectory but parallax error takes into affect because it has an angled view so its a valid response
(checked with my physics teacher)