Whoa!
A number of ‘interesting’ posts here.
With regard to standards, referring to Steve and William’s posts, don’t use them as goals. If anything, standards should be used as platforms or starting points to take off from.
Use the advice in Steve’s earlier post regarding a certification or day course. There, you’ll get the cues to dial in on proper form AND be around people who don’t aspire for standards. Quoting Charles Poliquin, who was quoting someone else, “normal is for average people and that is far too low a standard for me.”
Last November, I deadlifted 2-1/2 bodyweight for an easy double. Not a PR by any means, but the following week, I finished a marathon in under three hours.
Standard results?
Training for either task is fairly straight forward and I’ve even considered an article. However, talking about marathon training here is like sharing bacon recipes with a vegan.
Regardless, learn the technique, learn what’s possible, train, and do it.