& you offer nonsense...
nonsense
learn to think
the '54 track very likely doesn't exist today, so no experts can compare that to modern synthetic
https://www.youtube.com/watch?v=8COaMKbNrX0he says
"how much slower to synthetic & the consensus was 1.5%"
that means to anyone not clueless, an easily available current dirt track in pristine condition v synthetic, which normally means locally available synthetic as i doubt they got acess to diamond league/olympic tracks
that means any readily available synthetic tracks, usually university ones as that is where experts reside
diamond league/olympic tracks are NOT readily available
nonsense
no commentators or statisticians woud have a clue as they don't do elite running
the only comparison woud be for an elite '70s guy running in same shape ~ 40y later !
utter nonsense on their opinions as time-travel doesn't exist
what we have is the iaaf rules stating potential energy which is translatable to kinetic energy CANNOT be more than 65%, which means this drivel about faster tracks is nonsense as that breaks iaaf rules which have been in place for decades
you have offered nonsense
nonsense
compacting woud be same from any efficient groundsman with a rake & roller
temperature does not affect silicone based material in a mere 40F range
every effort was made to get bannister to run his sub-4 & that means as ideal preparation for that meet, same as Ryun
a journo who didn't run on it or other tracks to compare
how clueless are you ???
"pristine" means for 1st run of meet when not been chewed up by preceding races
do you have no clue about the scientific method ???
have you never heard of the "control" comparator ???
Ryun ran probably at end of meet as that was highlight of whole meet & they don't put the highlight on as 1st race but late on, usually last as in Dream mile
no
it means which synthetics were readily available to experts which indicates university tracks for both synthetic & dirt NOT diamond league/olympic tracks
this is immaterial as iaaf have limited energy return to 65% for decades
clueless
that is for "pristine" track which has not been run on, not the chewed up rubbish Ryun usually ran on at end of meets
i put in 1.015 in 1 mention which to anyone clueless is a ratio
the 1.015s/lap was typo but pretty damn consistent with usually offered 1s/lap for the chewed up rubbish Ryun got to run on
eh ??
what other experts who have carried out research & come up with consensus of 1.5% for assumed pristine, 1st-race-of-meet dirt can you offer to refute this ???
i woud go much more with 1s/lap for that chewed up rubbish, making his 3'33.1 -> 3'29.3 on any synthetic as per iaaf mandate
that is a 3'29.3 in 95F !!!, off a total jog to 300m, wide running 300 - 400, just stalking Keino until 1200 & only serious effort of race in last 300 where he took 4s out of keino !!!
what is this nonsense ?
1.015 conversion or more like 1s/lap for rubbish Ryun usually ended up running on mid-late meet
no
epstein's statement is trivial to infer
you are too inept to even do basic inference ?
clueless
anyone with discernment woud realise he meant what dirt & synthetic tracks experts had to go on & that means local tracks which doesn't affect synthetic anyone as per iaaf 65% mandate
do you have any clue about physics
this shows you are totally clueless about scientific method
can you not find a neurone to understand "control" means that dirt track under consideration has to be in "perfect" condition with no race run on until experiment ???
how clueless are you ???
he didn't mention elliot or snell or keino or jazy or ron !!??
he talked about the only guy anyone wouda likely heard of - bannister
it is immaterial
iaaf mandates 65% energy return as limit
can't you grasp physics ???
nonsense consideration
see iaaf mandate
if you want anecdotal : ludicrous claims zurich track of '14 was "fastest ever" & we saw utter rubbish run on it this year
utter nonsense
it was more like 3'29.3 in 95F !!! off a total jog to 300m, wide running 300 - 400, just stalking Keino until 1200 & only serious effort of race in last 300 where he took 4s out of keino !!!
what is this nonsense ???
i am observer who has seen track as grown-up from '70s to today
to offer "oberver" argument is innane
i am NOT an elite athlete who was in same shape in '70s as in '13 which is only viable comparison
as no one has time-travel machines around to take them from '70s to '10s, therefore anyone claiming '10 tracks are faster than '70 is talking nonsense
the only factor therefore is iaaf rules of 65% limit
no
it is clueless posters who believe manufacturers nonsense about "faster tracks" when in order to do so they have to break the laws of physics & beat 65% on the standard test which is so simple & irrefutable :
drop a metal ball from 1m & if it bounces up more than 65cm, it is illegal
there is no way around this
from there, if you can't understand basic physics that this potential energy is translated into kinetic energy, then i can't help you
utter total drivel
look at his splits for initial 400 :
16.0 - 4'00 pace !!!
15.8 - 3'57 pace !!!
14.7 - 3'40 pace !!
14.0 - 3'30 pace
get a damn clue
he threw away 2s just from that jog to 300 !!!
that's not including flattening out the further uneveness in race from physics
& to your next question, the above 2s loss in initial 300 is not amenable to my physics flattening-pace formula, this is not formula friendly but from vast experience
the formula i use is accurate for only fast races with no unenforced slowing
you have to add on time thrown away by unenforced slowing to my physics formula
that gives Ryun a time of 3'27.3 on synthetic without evening out the whole race, the extra ~ 3m run by him wide 300 - 400, the slowing by Keino for final kick or crushing 95F !!!
the conclusion from this is that Ryun's run that day on a '70s synthetic at 70F track-side, paced evenly to bell was
~ 3'24.2
nonsense
utter drivel
there wouda been 10,000s of people in stadium
not 1 has ever disputed 95F
clueless
can't you even think ???
ever heard of reflected heat ???
http://www.mercurynews.com/southbayfootball/ci_26360587/49ers-fans-complain-unbearable-heat-at-levis-stadiumnow learn to think :
stadia reflect heat, concentrating it like a magnifying mirror onto focus, which is the track, which can heat up 70+ into 90++
Ryun said it was 95F on stadium screen
it is for a track-side 70F, NOT a track-side 95F
utter nonsense
no one forgets the circumstances of smashing the 1500WR by 2.5s !!!
in a court of law, the actual track-side temperature woud be used NOT weather-station temperature
if track-side temperature was given as 95F, you have to disprove this with other track-side recordings
a weather-station woud never count as sole arbritrator of track-side temperature
utterly ludicrous suggestion
utter drivel
there were 10,000s of spectators & i have never heard of 1 who has said it was not the 95F that Ryun has claimed
you post drivel about the track-side thermometer
were you there to measure it ???
give us your reading in the stadium ???
utter nonsense
he said it was 95F & the concentrating effect of a curved stadium can push it up hugely
the oz open tennis has heat policy :
go fetch the weather-station temperature for this year's oz open when the heat policy was used
was it 104F at the weather station ???
nonsense
it can with a stadium concentrating heat like a concave mirror onto the track
utter nonsense
upto 100F is just about fine for 200m or under
any longer & it will wreck times
by 800m the the track-side temperature shoud be no more than ~ 70F for optimal performance
nonsense
anything above 200m in 95F will be progressively ruined
- no more than 85F for a 400 IMO
- no more than 75F for a 800 IMO
- no more than 70F for a 1500 IMO
by now the curve shoud start to asymptote, so by 10k the trackside shoud be no more than 65F IMO
nonsense
official temperature given for record is 78.8F
the likely track-side temperature was likely lot higher
out in lane 2
https://www.youtube.com/watch?v=WhkjIrzTiEAlast we saw was him was lane 1 on 1st ~ 100
if he had stayed there, until 30 - 40m out, then suddenly accelerated, that wouda been a ruinous loss of energy, as worse or worser than running wide in lane 2 at even pace !!!
race reports & his own comments state that he just was intent on following Keino & Keino made his move from 300 from start & can be seen also wide & Keino never got lead on 1st lap
bailey lead at 400 & that means Keino & therefore Ryun had to make the run out wide as the 3 white guys behind bailey do not change position or cadence from 100m mark to latter part of 1st lap on conflation of start/latter part of 1st lap
how inept are you you can't analyse a vid ???
which woud mean a ruinous loss of energy to accelerate past the 3 white guys behind bailey, as worse or worser than running whole bend wide in lane 2 at even pace !!!
utter nonsense
he either ran ~ 3m extra for whole bend or in unlikely case wildly accelerated for ~ 30m of bend into lane 2, costing as much or more likely more energy than running whole of bend in lane 2
learn to analyse
no
it is ~ 0.4+
nonsense
it is generally quoted as 0.14s for races over 400m
in addition 1 clocking had it as 3'33.0, other 2 at 3'33.1
which offers potential to come off 3'24.2 on '70s synthetic
i don't ask it because full race is not available
nonsense
Ryun said it was 95F as link above to heat death shows what can happen in stadiums from reflecting/concentrating heat onto track like a concave mirror
nonsense
more like 3m from actual 3m out wide in lane 2 for whole bend at even pace or equivalent from ruinous acceleration in 30 - 40m in lane 2 to chase Keino
utter nonsense
it is 3'29.95 for a pristine dirt track
Ryun didn't run on pristine dirt
he ran on 1 offering more like 1s/lap or worse
1s/lap is round number
he also had huge caveats for that as shown above/below
clueless
try :
3'33.1 with
- 3'31.1 : 2s lost on initial 300m from jogging
- 3'30.0 : 1+s lost from physics evenning-out which can't account for unenforced slow runs on laps or part-laps
- < 3'29.0 : from no serious effort in race apart from 100m sprint to chase Keino on 1st lap & blasting last 300 when passing Keino, taking 4s out of Keino who even dipped at the line !!!
he ran ~ 800m "unenforced" slow running extra from 400 - 1200, as he just stalked Keino & utterly destroyed him in last 300 showing he had huge energy reserves left at 1200
- < < 3'28.0 : from appalling 95F track temperature compared to ideal 70F
- 3'24.25 for applying 1.0s/lap for significantly run-on dirt & i'm not being generous
Ryun on '70s synthetic with some serious ungenerousity :
3'24.25