How do I retime runs recorded in 30 FPS? I'm not sure if i'm doing it correctly.

Time your run like a normal run. Add 1/30 sec = 3 millisec and bam you are correct

I mean yeah, I do that, but calculations don't match the time on leaderboard.

For any% we have a spreadsheets using bowser patterns.

I'm talking about Minus World Ending category. At first, my run was retimed to 2:39.504, then it has been retimed to 2:39.421, that's why I have doubts.

I just looked at your run. The time I got from the video is 2:39.433. The nearest possible times considering the NES frame rate are 2:39.421 and 2:39.437, so the new time seems fine to me. I guess that the 2:39.504 was a mistake that was corrected later.

@Marikh Thank you! Can I ask you about something? When I was doing calculations I got 2:39.204, so I did something wrong. How did you time it?

In short: Time starts when the 400 appears (at 1:49.100 in your video) and ends when the axe disappears (at 4:28.533). The time difference is 2:39.433.

Alright, thank you. :)