A lot of talk about 'super spikes'. I just went through quick every few years and took the 16th fastest time in the mile/3k/5k for NCAA men. For 2022/2023 indoor season I removed seniors since they normally wouldn't be in the NCAA as they got an extra year of eligibility from COVID. People currently listed as sophomores are actually juniors, juniors are actually seniors, seniors should be phased out but some of them came back for that last year of eligibility.
Anyway, here are the 16th place times for mile/3k/5k in 2010, 2015, 2020 (regular season completed, NCAA meet was canceled) and 2023 when removing seniors.
Year - 2010 -> 2015 -> 2020 -> 2023
Mile - 3:59.17 -> 3:58.25 -> 3:58.09 -> 3:56.08
3k - 7:57.42 -> 7:53.27 -> 7:51.00 -> 7:47.45
5k - 13:53.61 -> 13:47.22 -> 13:40.99 -> 13:34.30
As you can see, every few years the cutoff is getting tougher and tougher. The time improvements in the past three years are similar to the time improvements between 2010-2014 and the time improvements from. I realize I go from skipping five years at a time to only skipping three years to now but I don't really feel like going back to doing exactly three years each time.
If you use this as evidence, then you could maybe say the 'super spikes' make you run zero to one second faster per mile you're racing. Really I'd say this is evidence that they don't make you faster, and the NCAA has been getting faster consistently, and we saw similar improvement the past few years as we've been seeing. Saying a 13:20 guy today would only be 13:30 before the new spikes is a ridiculous statement.