This is great! I've only just seen it.
The only thing i can enter is the 2k ergo.
However....
Without wanting to be a spoil sport, kill joy, party pooper have you thought about using the 2000m handicapping which takes into account body weight, us lighties are at a big disadvantage

(or perhaps having a lightweight category <75kg )
you can just enter the details here and get the reading
http://www.concept2.co.uk/racing/correction.php anyway
when i was 59kg i pulled a 7:13.5 on the ergo.
corrected taking weight into account this is
6.48.3 Its safe to say i could not manage anything like this anymore
if not tell me to fcuk off, lol.
Also if you do decide to add a 10k to the list im at 43mins (i dont know the seconds, this was done a few years back again at 59kg)
all the best
Tom