https://imgur.com/a/ntJq6

as i see it, seems ok.

Looks like several connections from the different rigs;  seeing over 280Th in the screenshot.

it will vary;  share diff gets trimmed, share% deltas up to normal.   Short rentals aren't the best, 24hr+ are better.

Looks like it was probably a combination of share diff returns (luck) and auto-diff+ deltas.

to add, its hard to factor in any disconnects since you don't actually see the miner's logs on your end.