I'm not 100% certain, but I think it should be a 7:33. I think the timing of start for them was off from the "Welcome AAA" screen.

Also -- if I'm correct, Skinomarsh's second place run would be 7:38 and Toad's time would be 7:40.

Most likely you are correct. I have yet to start the re-times because of some things going on in my real life. My apologies for the delay, they will begin ASAP.