I just consulted his autobiography and it was actually the 23rd
Better go back and re-read that book. Bill Rodgers ran 2:09:27 at Boston 1979, his 22nd marathon.
He had 13 2:12s or better ( within 3 mins of his PR ) up to the end of '79
No he didn't. He had 8 races within 3 minutes of his eventual PB prior to Boston '79. Rodgers only had 12 races better than 2:12 his entire career. It's a huge leap to classify a race three minutes outside a runner's PB as a "good" race, even though any one of us would die to run a Rodger's "clunker."
Even if you could put a single correct fact out there, you still have no point, because Rodgers only improved up until 1979, after that Boston he never ran as fast again, proving Noakes' assertion. Don't forget he is talking about "good" races from the point of view of that particular runners standards, not yours or mine.