i am curious wrote:
So please provide evidence on how Cain has improved so much more than Baxter in XC 5000m.
Going into last year's NXN, Cain and Baxter had very similar track 3000m / 3200m PRs.
Cain's 3000m PR was 9:28.60 from her freshman year, a time she didn't better as a sophomore.
Baxter's 3200m PR was 10:08.11, a small but meaningful improvement from the 10:13.00 she had run as a freshman.
Baxter came into 2012 NXN as the defending champ, Cain came in as the returning 6th place finisher, 18 seconds off Baxter's winning time.
At 2012 NXN, Cain moved up from 6th to 2nd and reduced her deficit to Baxter from 18 seconds to 4 seconds.
Since 2012 NXN, Cain has reduced her 3000m from 9:28.60 to 9:02.10, a 4.7% improvement. She also made a 5000m track debut in 15:45.46.
Since 2012 NXN, Baxter has improved her 3200m PR only incrementally from 10:08.11 to 10:06.74, a 0.2% improvement. She now has two XC results this fall: a 1.9M race in which she improved her time from 11:00 to 10:43, a 2.6% improvement; and a 3M race in which she improved her time from 16:12 to 15:57, a 1.5% improvement.
Bottom line: Cain improved her most relevant track PR by 4.7% and demonstrated improved range by making a 5000m track debut in a new HS girls record time. Baxter had a flat track season and has so far shown 1.5% - 2.6% improvement in her early season XC races. This evidence suggests they have both improved, but that Cain has improved more in ways that would be relevant to a 5k XC race. In no sense, however, does this evidence prove that Cain would win a rematch.
One final point: in an actual race between Cain and Baxter, Cain effectively wins all ties. In other words, if its close with a few hundred meters to go, Cain has such a big advantage in top speed, it's hard to imagine a scenario where Baxter holds her off.