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Sub 3Hr Marathon

313 watchers

DT19 Aug 2024 10:20pm, 21 Aug 2024 115 posts	Quote Pin DT19 Odd updated app as well and not there. Checked on watch, 16.33, 34.21, 75.53 and 2.38. Not wildly out, about 15s per mile faster than performances in last 6-12 months.
SPR Aug 2024 10:33pm, 21 Aug 2024 45,782 posts	Quote Pin SPR Presumably not there because you have an older watch as those predictions are from the old predictor.
DT19 Aug 2024 10:42pm, 21 Aug 2024 116 posts	Quote Pin DT19 It's a 645 music so about 3 years old I think. How can you tell they are old predictions? If the data is on the watch I can't see why it wouldn't transfer to app like lactate threshold or hrv does etc.
SPR Aug 2024 10:52pm, 21 Aug 2024 45,783 posts	Quote Pin SPR The link I posted over the page are old predictions they are basically a chart based on VO2 Max, they show very tight conversions as you move up distances so pretty easy to spot. New ones change almost daily as training load factor into it and marathon can be way out compared to 5k based on training load. The 645 has the old predictor. Can't say why Garmin have made the decisions they've made but they've presumably decided to only support the new predictor on the app.
SPR Aug 2024 10:58pm, 21 Aug 2024 45,784 posts	Quote Pin SPR Might be worth clearing app cache in case it's a bug based on a Google search.
TR Aug 2024 11:47pm, 21 Aug 2024 122 posts	Quote Pin TR DT - you need to wear your garmin all the time if you want accuracy from it. It includes rest, sleep etc into its calculations.........mine massively underestimates me but I do lots of slow running on hilly routes.
jda Aug 2024 5:51am, 22 Aug 2024 17,666 posts	Quote Pin jda I don’t think there is any process of watch-wearing that generates accurate results. It’s a silly bit of numerology, that’s all.
Mark J 🇳🇿 Aug 2024 6:00am, 22 Aug 2024 2,681 posts	Quote Pin Mark J 🇳🇿 jda wrote:I don’t think there is any process of watch-wearing that generates accurate results. It’s a silly bit of numerology, that’s all. Not sure I agree. I wear my Coros all the time and my race predictions are usually within reasonable parameters.
Mark J 🇳🇿 Aug 2024 6:02am, 22 Aug 2024 2,682 posts	Quote Pin Mark J 🇳🇿
Charlesvdw Aug 2024 7:24am, 22 Aug 2024 360 posts	Quote Pin Charlesvdw My Gamin says: 19:06 40:18 1:28:38 3:11:14 True shape: 18:30 39:10 1:26:xx Probably 3:05-3:10 shape right now

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