Hi guys, let's take some rest from Addison Wiley's threads & tension^^, and educate some of us a little - at least me - a former competitive swimmer who has no any experience & knowledge about racing tags, but who is also an engineer who can find supplier datasheets and worldwide available knowledge on any level of professionalism without any problem. But you do have experience?
My question is mostly related to very bad official Budapest23 race timing / analysis coverage.
For 1500W final (media.aws.iaaf.org / competitiondocuments/pdf/7138987/AT-1500-W-f--1--.RS5.pdf) they show Ciara Mageean leading at 700 and Diribe Welteji at 1100 while it was Kipyegon who led all the time. How is that possible?
For 400mH W final they don't specify splits at all (media.aws.iaaf.org / competitiondocuments/pdf/7138987/AT-400H-W-f--1--.RS5.pdf) while as I remember for the USA Champs (very nice results/tracking website, possibly the best I've seen) we had/have not only splits but also barriers times (not all). In Budapest at least they specify heats hurdles splits (but these are unimportant).
For 4x400 W final we have no analysis at all (worldathletics.org / en/competitions/world-athletics-championships/budapest23/results/women/4x400-metres-relay/final/result) - just this s**t results pdf without splits at all (media.aws.iaaf.org / competitiondocuments/pdf/7138987/AT-4X4-W-f----.RS6.pdf) - while for the heats we had results with splits (media.aws.iaaf.org / competitiondocuments/pdf/7138987/AT-4X4-W-h----.RS6.pdf) and analysis (media.aws.iaaf.org / competitiondocuments/pdf/7138987/AT-4X4-W-h--1--.RS5.pdf) though this analysis has the same data as results pdf - nothing more for relays. Furthermore there are strange data for those relay heats - France 46.83 and then 57.85 on 2nd/3rd leg, and Italy 47.13 and then 54.52 on 3rd/4th leg. Hungary the same - 48.40 / 55.49 on 2nd/3rd leg, and Cuba 46.17 / 1:00.40 on 2nd/3rd legs. So we don't have official Femke Bol's final split while there are some reports Klaver & Bol ~48.8 (Klaver just a bit faster) and there are some reports Bol faster with ~48.4. Though for relays I understand these are batons with tags which are tracked?
As I did read somewhere during ~3 minute web search detection mats and Bluetooth? are used for road racing - it's technically simple and easy to understand though is it Bluetooth or RFID? and are there really any mats for let's say World Marathon Majors?
And what system/systems are used on track (I mean best/most important track events) and why it was so unreliable in Budapest? - in 2023 when super precise tracking should be available without any problem?
BTW. Congrats for USA's Alexis Holmes in the mixed 4x400 relay (though she made very amateur error in women's relay to be DQd) - this is in fact American 400 depth. Came out of nowhere with weak 50.32 PR at age 23 (50.77i) and set a PR in relay with 48.82 split so that is probably at least ~49.5.