Purgatory is merely a Penalty Box, Hell is the ETERNAL DQ

(I don't know how to use the pink font yet)

No real way to know imho. I am always amazed at people who are flat out saying that they think that all the pros dope. How can you stay in the sport when you are that disillusioned?
I'd rather run the chance of being a little naive and believe that there is at least a majority (including Hawaii champions) that doesn't use prohibited substances.

I'd say > 10% for all participants.
> 25% for the podium.

That is my wishful conservative estimate which implies that the podium can be clean.

Definitely. We are in the "all about me" era. Selfies, round white stickers on the back of cars, etc. Which reminds me, I just took my morning #2. I better go to facebook and post about it complete with pictures. I am so important and awesome that someone will want to know about it!

You probably don’t want to think about that, but now it’s too late. The next time you get a weird, vacuous post from a Friend give it some thought. Could they be sitting on the shitter?

And what about Strava? Could there be anything more entertaining while taking a crap than looking at your Run or Ride stats and those engaging little maps that show where you went? I think not. Strava was born to entertain athletes occupied with taking a good crap.

Actually there ought to be an app just to measure your efforts on the toilet. Call it JockStool or TriPoop or SphincterLinkter. Something like that. You could take pictures and share them with your friends. “Nine inches today,” a typical post might say. “That’s a PR! Poop Record!”

Really depends on the level of competition. At local and regional races, I think you're overly pessimistic. At the top levels of the sport, that's a different matter. I regularly AG podium at races in the New England area and I'm clean and have no reason to believe that most or even all of my competition isn't clean either. Just don't see any amazing changes year to year or performances that seem superhuman, at least regionally in my geezer age group. But I'm no where near fast enough to podium at larger national races, and your estimate is probably reasonable for those events, after all, a well-known convicted doper is near the top of the national rankings in my AG.

Then when the juice is taken away..........reality comes back.

Dopers are far,far worse than course cutters, bib switchers, etc. Course cutters are "amateur" cheats at best. They usually have a short term goal and think of the easiest solution to achieve that goal. No real effort involved, just some planning and execution. They are not risking life and limb.

Dopers however, they are the "professional" cheats. They are in it for the long haul. They are already doped to the gills with legal supplements. They have tried everything over the counter, from GNC, etc. trying to get that edge. They already have so many chemicals going in and out of their bodies. They are doped to the gill gear wise as well. Always have to have the latest bike, wheels, etc in order to have that edge. They are no different than the common crack or meth addict, just no rotting teeth or favors for drugs. They are the ones meeting their "dealer" in a back alley or anti aging clinic and buying illegal substances. They are the ones sticking themselves with a needle every day. Got to have that fix. It doesn't matter what it is doing to their body. Their whole life is a lie and they will do anything to hide that fact and conceal it.

I'm still at a loss as to how course cutting is still possible, given electronic timing at most races, and that probably 80% of athletes are wearing some sort of GPS tracking.

They are already doped to the gills with legal supplements. They have tried everything over the counter, from GNC, etc. trying to get that edge. They already have so many chemicals going in and out of their bodies. They are doped to the gill gear wise as well. Always have to have the latest bike, wheels, etc in order to have that edge. They are no different than the common crack or meth addict, just no rotting teeth or favors for drugs. They are the ones meeting their "dealer" in a back alley or anti aging clinic and buying illegal substances. They are the ones sticking themselves with a needle every day. Got to have that fix. It doesn't matter what it is doing to their body. Their whole life is a lie and they will do anything to hide that fact and conceal it.

I neither endorse cheating nor have I ever cheated in a race - ever. But it's not hard to circumvent the chip if the person is willing to sink low enough:

For marathons, the location of the timing mats is in the race results from the previous year. Most courses double back on themselves for at least part of the way(courses like Boston being an exception), so you can cut miles off the course and still hit the mats.

For IMs, the only one I've done is IM Lou, but for any bike course that's open to traffic, I can see a cheater pulling off a side road to a pre-designated meet point with someone with a vehicle. As above, they know where the mats are, so they could attach the chip to the car bumper and drive their way to way to a PR.

99.9% chance they're all juiced to the gills. I see pro athletes as victims, they need to do it to go 7 50. It's either you've been caught or you know how to cycle a stack imo just look at the positive tests it's always for nandralone or something long acting only noobs are getting caught. the difference is that an ag doesn't need to do it to play

This is my view on pretty much all sports. I can see how a pro-athlete whose livelihood depends on performance could justify doping. I don't see how an Age Grouper can. I was a bodybuilder and power lifter for years. I never understood why bar body types or even the local competitors felt the need to juice up. Frankly I think all form of PEDs should be legal, but whether allowed or not depends on the sport. But you are kidding yourself if you think with money on the line, guys aren't getting bigger, faster, and stronger without help of the latest technology that is harder and harder to catch. If you cycle correctly, you will not test positive at race time. The benefits of doping have long been materialized.

But if you magically lose your chip - the mats don't matter to you. Looks like you only get DQ'd if someone kicks up a fuss ?

I'm 99.9% sure that at the very least a significant minority of pro athletes are clean. Maybe if you're looking at World and Olympic finalists in an event like the 100m then you might be 90-something percent, but not triathletes.

Not so fast.

At least for sportstats timed events>

They have some analytics that they run at least on the top 40 in each age group who could get a rolldown spot. If your pace dramatically changes vs your average you will be singled out and a DQ may be recommended. Now in fairness your pace on one leg could be really slow due to a flat or cramps, so they have another layer where they look a the median pace variation between splits. If yours are dramatically off in terms of how they vary, you will be flagged and investigated and likely recommended for DQ.

As I said, they usually flag and recommend 5-10 athletes per race for DQ to Ironman officials. It's not that easy for someone to cheat the system.