You don't have to use the SimpleMissionTimer mod; other runners will use video editing software to add a stopwatch. Here is a suggestion by one runner: "Just stream on twitch and use the highlight feature to make videos of runs from the vod that you want to submit. Then use a simple editing software like iMovie to put a timer on it and upload it to YouTube."

I can review those runs again and manually time it this one time, but any future runs would have to have an on-screen timer. This rule was implemented because the timer shown on-screen at the end was inconsistent

I timed it and got 1:50 in-game time so edited it accordingly. Nice run!