With the 120-mile Cyclosportive agonisingly close, our man travels to the University of Essex for a second fitness test.
In his latest video diary, Martin reflects on some surprising results, his 10 weeks of pain and reveals his hopes and fears for the big day on Sunday 1 July.
By Tuesday, you'll be able to see exactly how he gets on and whether he ever wants to get on a bike again. Don't miss it!
Our man reveals his hopes and fears
So Martin's huge challenge is almost upon him, and he's keen to hear from you.
Does his improvement in fitness surprise you? Is the time target he has set himself realistic?
If you've any last-minute tips or wishes for Martin, get in touch via 606.