I noticed a run summitted by JKR was put in the category all tasks first three maps console. but the video is only on Mira HQ. is this a mistake or am I just seeing it wrong?

hello everyone. I would like to submit runs but I dont know a good way to time them. I understand that the moderators will retime them anyway but I wont know if my time is faster than the last without timing it myself. So I was wondering how you guys go about timing your runs. Thank you. :)