mod note:

• R1: 43.317 (82.717–126.033)
• R2: 1:06.650 (180.050–246.700)
• R3: 1:11.617 (310.733–382.350)
• R4: 1:05.800 (453.400–519.200)

lrt final 4:07.384

rta starts 82.717, ends 519.200, final 7:16.483 using yt-frame-timer.