AI tyre strategies and wear (in 100% race?)

AI don´t have tyre wear or even matter what tyre used, i´m based on 2 races on spa, in one i do with medium tyre and started rain, i´m changed to intermediate and IA continues with hard tyres at end without lose time, more than 12 laps with wet track and drs disabled without lose any second using hard tyres

in another situation, i´m started with medium tyres and changed in middle of race with wear in 50%, AI started with hard tyres and stopped together me to change to mediums, and goes at end without lose time, yes, doing the same lap times at end

@Sareth93So, it happens that I did Monaco last Sunday, 100% race and career mode as well, only I'm in McLaren.

At first I was suggested the same strat as you but instead of switching H and M (wheather was cloudy to the end of the race, so I preferred to be on mediums by then) I edited the strat to make the first sting longer in some 10ish laps, saving some 12 seconds in doing so.
The same goes for the fuel, it was suggested to carry +5.something laps of extra fuel. I know my driving some +0.5-0.8 are alright, and so I did.
Race went alright, P5, ahead of Lando with Sainz DNFing.

Thing is after patch 1.09 the race strat programme seems to not having influence on the strat your team suggests you, so you have to do it by yourself.
Let's hope for these to be patched in 1.10.

As for the AI having lower tyre deg, personally I always thought it to be a sign of "I need to learn how to save tyres properly". It happens that I don't notice this AI lower tyre deg anymore - but being playing these F1 games for quite a while now.

Cheers.

Hi @Sareth93 ,

faced something similar in Jeddah today (so the same after patch 1.10).

The suggested strategy is wrong imho, as it's slower than what you can do with the same tyres, here's the default (red rectangle):

while you can do (13 seconds faster!!!):

Today I run a 100% race with the faster strategy, but it looks AI is using the wrong one, as you can see from the following pictures the top drivers all pitted around the 20th lap (H --> M):

From the telemetry I can see they changed the (H) with a 33% of usage, while ending the race with (M) at 66% of usage!

I think they could be faster in the race using a strategy similar to mine but it's also true that they were still damn fast at the end of the race, because even if I won for 11 seconds and I did also a good final lap using saved ERS, AI did the best lap for 0,044 s. ahead of me. So they are really really fast with a 66% used tyres. High usage but still not too high (75% or more).

Regards,

Nuv

P.S.:

my (H) ended the last lap with a 48% of usage which should mean around 97,25% of grip level (according to the stats taken from patch 1.06, I ignore if they have been modified in the meanwhile);

AI (M) ended with their 66% of usage which mean a 93,70% of grip.

In Jeddah the difference between a new (M) and a new (H) is around 0,5 s., I cannot say how much is in lap time that 3,5% of grip difference, even if I guess a player could be a bit more in trouble than AI, it's still not impossible what AI achieved, but imHo with a big "H" 🙂

@Nuvolarix 

"but it looks AI is using the wrong one, as you can see from the following pictures the top drivers all pitted around the 20th lap (H --> M)..."

Yeah the AI runs some poor strategies on 100% races, the most basic of which is too short of a stint on hards followed by too long a stint on mediums.  They do the same at Spa.

At Austria they'll do a S/M/H where they go far too long on the mediums and switch to hards with only 15 or 20 laps to go (hards are barely 1% deg per lap at Austria).

They run the default tire strategies which just aren't generally very well optimized.

It’s obvious the AI isn’t obeying the same set of rules that we are. When you spectate them, they hardly use ERS yet are able to pull away from me in the straights. I’m fighting with 10% ERS in the last few laps, while they’re running at 65% and unleash it all in the last lap. 

They don’t suffer tire wear or damage. The only thing they suffer is a blown engine here and there. 

At lower difficulties, the AI falls off towards the end of the race, but they are idiots on the track. Once you hit 60 and above, they’re unstoppable. 

@BadMayh3mOn-Diff For Monaco it was 54% so pretty low. On other tracks it is generally higher for me, about 70-80% most of the time.

In which way does it affect the tyre wear exactly?

I did also race in Spa yesterday, and I looked at the AI lap times over the course of the race. The AI was generally able to do almost pin perfect the same lap times on the specific set of tyres every lap. They did a very long medium stint again, but their times were the same at the beginning and end of the stint. I guess that the lower fuel made up for their loss in grip.

I generally had good tyre wear that race, but when my mediums got close to 50% I started feeling the effect of it, going around 0.5-1 sec a lap slower than my fastest lap so far. Even with lower fuel.

I mean, I didn't lose too much time, because I stopped when I realized my times were falling off, and it was okay for me. My last lap on hards was also maybe 0.5 secs slower than my fastest on hards, with about in the 40s tyre wear.

But AI again managed to pull a fastest lap at the end of the race with, as suggested above, round about 66% tyre wear, which would be completely impossible for me.

And it should be that way, the Mediums are faster than Hards in the beginning, but after some time, it turns around. This happens for me when I am on the Mediums against the AIs Hards, so it should also be the other way round. But it's not ...

So my point is, the AI does suffer tyre wear but they can handle the loss of grip so much better than the player that the lower fuel offsets the loss of grip even at 66% wear.
It feels like for the player (at least for me) there is a "drop off" point where the grip is not enough to put consistent fast lap times anymore. But the tyre wear might be more gradual, and the AI can handle that so much better.

Anyway, the tyre strategy for the AI is really weird, being longer on mediums than on hards, or doing a short stint on hards while driving the medium for much too long. I wonder if they would be even faster with the "optimal" strategy and that may be the reason why it is coded that way? Or is it the other way round and the AI actually knows they are faster on a longer medium stint, because they don't suffer on the tyre degradation in the same way the player does?