You can see in jymotion's profile page, 4th place and 7th with the same partner and submited by the same player, specifically the 18:47 run appears as not obsolete on his profile, but if you remove the obsolete filter on co-op board you can see indeed as obsolete.

No other runner without an account linked has more than 1 run, and even so, jymotion & keanusleeves have several runs submited but only the 18:47 run shows as not obsolete.

Why did it happened? I don't know

The 7th place is listed by an obsolete run by jymotion and keanusleeves, so the board identifies it as obsolete but not the profile page, maybe because keanusleeves's sr.com account is not linked to the run itself.

So everyone from 7th and below are 1 down on profile page.