Adventures in Onionism

Pre-Race My final race of the year was Sacramento's California International Marathon. I'd run it twice before: once in grad school on little training when I had a goal to run a marathon every year but didn't much care about my time (I've since upped that goal to a 100-miler), and in 2021 when I trained for it fairly seriously and set a PR of 2:59:18.  The West has two types of marathon courses: hilly ones and downhill ones, and then there's CIM, which is mostly flat. There's slight rollers through 15 miles or so, but the biggest is probably 30-40 feet at most, so you can still run any mile with a hill at roughly the same pace, and there's a net drop of ~350 feet.  Anyway, it's a really good course to run fast: so much so that I believe it produces the largest number of Olympic Trials Qualifiers and Boston Qualifiers of any race. That means the race is relatively crowded at the front. Here are the percentages of finishers who ran in under 3:00:00 at a fe...