Ruth Buscombe

Strategy,Analyst & Presenter at F1🏎 Speaker🗣️ AWS Motorsports Technical Advisor & Brand Ambassador 🔗 to Strategy Newsletter in Bio👇Enquiries [email protected]

[Ruth Buscombe @RuthBuscombe]

It’s drizzling.
Boss asks which tyre.
How does a strategist actually decide?

And how do I say it on live TV without the obvious things, like an F1 car and a pit wall of my own?

Well, here’s what I did.

I haven’t been on a pit wall since the end of 2023. But last night I prepped Canada like I still was. The question doesn’t change, and like my old boss, my new boss still asks. It’s my job to answer.

Honest answer: we build decision trees off the times we got it really wrong. Dale Carnegie called them FTDs, short for Fool Things I’ve Done. Mine are the same thing: races I’ve got wrong before and would really like to not repeat. (Singapore 2017 flashbacks intensify.) What falls out is three rules and two kinds of signals.

The rules. Every crossover comes down to these:

1️⃣ 🚨 STAY ON TRACK. No tyre is fast in the wall.
2️⃣ ⏱️ FASTER OVERALL. Lap average, not the corner you can feel.
3️⃣ 🍋 JUICE > SQUEEZE. Time gained has to pay for the pit stop and the positions.

Then the work splits in two:

🐤 Canaries, the signals that quietly tell the truth.
🎣 Bum steers, the signals that look like info but lead you wrong.

Canada, wet, last night:

🐤 Crossover number. ~110% of dry. 2011 and 2024. Different cars, different tyres, same number.
🐤 The chicanes. T1/2 and T13/14 ran 20-25% slower than dry. Until they dry, no slicks.
🐤 First car round T1 on slicks, even if it looks slower than the inters. Pit stop never catches up. That’s the canary worth waiting for.

🎣 The hairpin. Drivers radio about it because it feels wet. Geometry-limited, not grip-limited, and it ran near dry pace anyway. The loudest corner isn’t the corner that pays.
🎣 The fastest lap on the wrong tyre. Canada 2024: Lando’s last inter laps were the fastest on track. Tyre wasn’t dying. Slicks were already quicker two laps earlier. Fastest lap on the wrong tyre is still the wrong tyre.

The job: chase the canaries, ignore the bum steers, answer the three rules. 🚨⏱️🍋🎣🐤

Full breakdown coming soon.
🎥 on YouTube: https://t.co/Vzb6pFwBar
📨 Via Newsletter. Not joined The Race Strategy Society yet? https://t.co/6pytLhItin

🎧 Prefer your strategy by podcast? We're now wherever you get your podcasts

[Ruth Buscombe @RuthBuscombe]

🇨🇦🌧️ Canadian Grand Prix 2026 Wet Strategy Briefing.

The crossover explained.

In Montreal, the lap never dries evenly.
The back straight can already be slick-ready while T13/T14 is still deep in the danger zone.

That is why strategists don’t pit off the lap average.
They pit off the wettest corner.

🌧️ T13/T14 peaked at 125% of dry pace in Canada 2024
🌧️ T1/T2 stayed above 120% long after the straights were ready
🌧️ Norris lost Canada 2024 by staying out two laps too long
🌧️ Button won Canada 2011 with SIX pit stops because minimum stops is not always optimal

The biggest myth in wet-race strategy?
That fewer stops automatically means the better race.

Sometimes the winning strategy is simply the team willing to keep taking the tyre advantage when conditions keep changing.

And now comes the 2026 complication:
Active aero in mixed conditions, new energy limits, recharge compromises, unknown warm-up behaviour.

The teams who pre-decide the criteria usually win.
The teams who improvise usually don’t.

In this week’s Race Strategy Society briefing:
🌧️ The real inter-to-slick crossover number at Montreal
🌧️ Why T13/T14 decides the entire race
🌧️ The 17-second pit-loss calculation teams use in passing showers
🌧️ Button 2011 vs Norris 2024, same conditions, opposite outcomes
🌧️ Why “minimum stops” is often the wrong instinct in wet races
🌧️ …and more

The Canadian GP always looks simple on paper.
It never is.

🇨🇦🌧️ Canadian Grand Prix 2026 Wet Strategy Briefing out now!

[Ruth Buscombe @RuthBuscombe]

🦫🏎️🇨🇦Dry Strategy Briefing THE NUMBERS YOU NEED FOR THE CANADIAN GP

61%.
Pole position’s win rate in Montreal across the last 18 years.

Wins from P3 in the same period.

Saturday matters here more than almost anywhere.

1 in 3.
The probability of a Lap 1 Safety Car at Turns 3 and 4.

No runoff. Heavy braking. Cold tyres.
Survive the opening lap and you’ve already cleared one of the race’s biggest statistical threats.

3 of 18.
Canadian GPs altered by wildlife.

🦫 Davidson 2007
🕊️ Vettel 2016
🐿️ Hamilton 2025

Groundhog probability now genuinely higher than rain deciding the result at most circuits.

+4.84 places.
Average position gain from pitting under a Safety Car in Montreal.

Largest pit timing premium on the calendar.

0.03s per lap.
The theoretical delta between the one-stop and two-stop this weekend.

Across a full race distance?
About two seconds.

That means strategy confidence matters more than pure model pace.

Plan A:
Medium → Hard, one stop.

Plan B:
Medium → Hard → Hard, aggressive two stop.

But if the field converges on one-stop thinking…
that’s when the reverse strategy becomes dangerous.

Hard tyre start.
Long first stint.
Fresh Medium or Soft at the end.

Pérez used it from P15 to P3 here.

Then comes the 2026 complication:
⚡ Overtake Mode worth ~0.45s per lap
⚡ Recharge cost worth ~0.1–0.2s
⚡ Mercedes carried roughly +0.2s pace advantage through the Sprint

The margins are tiny.
The consequences are not.

🇨🇦📊 Canadian Grand Prix 2026 Strategy Briefings out now!

🎥 Full briefing live now on YouTube: https://t.co/Vzb6pFwBar
📨 Newsletter in your inbox now. Not joined The Race Strategy Society yet? https://t.co/6pytLhItin

🎧 Prefer your strategy by podcast? We're now wherever you get your podcasts

[Ruth Buscombe @RuthBuscombe]

🕵️‍♀️🇨🇦🐿️ WHY F1 STRATEGISTS ARE ON GROUNDHOG WATCH IN MONTREAL

Three of the last eighteen Canadian Grands Prix have been altered by wildlife.
Ignore the data at your peril.

🦫 2007, Anthony Davidson, groundhog
🕊️ 2016, Vettel, seagulls
🐿️ 2025, Hamilton, another groundhog

Sometimes the biggest strategic variable in Formula 1… isn’t in the data.
Lewis Hamilton after Montreal 2025:
“I love animals, I’m so sad about it.”

Groundhog watch is serious business if you’re a strategist around here. Ignore them at your peril.
Welcome to Montreal, where the wildlife votes, the weather forecast is a coin toss, and your brake-by-wire decides the race.

In this week’s Race Strategy Society briefing:
🐿️ Why pole wins 61% of the time here, and why P3 has won precisely zero
🐿️ The 2026 energy budget that’s 25% smaller than Miami’s, and what it changes
🐿️ The Safety Car timing worth nearly five grid positions
🐿️ Button 2011 vs Norris 2024, same wet-race conditions, opposite outcomes
🐿️ Four technical tells to watch on Sunday
🐿️ …and more

The Canadian GP always looks simple on paper.
It never is.

🇨🇦🐿️ Canadian Grand Prix 2026 Strategy Briefings out now!

🎥 Full briefing live now on YouTube: https://t.co/Vzb6pFwBar
📨 Newsletter in your inbox now. Not joined The Race Strategy Society yet? https://t.co/6pytLhItin

🎧 Prefer your strategy by podcast? We're now wherever you get your podcasts

[Ruth Buscombe @RuthBuscombe]

🇨🇦 Canada GP Race Strategy Briefing | GROUNDHOG DAY 🐿️ https://t.co/nEulc2k1Vc via @YouTube

[Alex Palou Montalbo @AlexPalou]

POLE FOR THE INDY 500!!!!!!!!!!

WHAAAAAAAT????

[Amazon Web Services @awscloud]

In Formula 1, standing still means falling behind. Is the difference between race one and race twenty the speed of the car or the innovation of team that builds it?

[Amazon Web Services @awscloud]

AWS and @f1 have partnered to push the boundaries of what technology can do in the most demanding environment in sport. Hear from AWS Motorsports Ambassador and F1 Race Strategist @RuthBuscombe on what the world can learn from F1.

[Amazon Web Services @awscloud]

@F1 @RuthBuscombe Learn More: https://t.co/rnJVnHe8oo

[Ruth Buscombe @RuthBuscombe]

🇺🇸 Miami GP | Race Strategy Debrief https://t.co/cY9YupzFyu via @YouTube

[Ruth Buscombe @RuthBuscombe]

Miami Sprint Pole by 0.222 seconds. But that doesn’t tell the whole story. Swipe 👉🏻

Same circuit, same compound, same fuel load. Lando Norris on pole, Kimi Antonelli alongside him, both on a fresh Soft. The gap was made on the energy map.

Watch where Lando pulled it out: the run to T1 and the exit of T3. Both early-lap, both the bits where McLaren chose to deploy harder and sooner. Antonelli clawed time back at the end of every long straight. 4 km/h faster at the top. That’s not driver, that’s stored energy waiting for the right moment.

Now look at slide 6. That’s Kimi’s own SQ2 lap (mustard, Medium) against her SQ3 lap (red, Soft). Same driver, same car, two completely different deployment shapes. Mercedes ran a map in SQ3 they hadn’t touched in SQ1 or SQ2.

The bigger story underneath: these cars are on the limit. SQ1 had Mediums overheating across the field. McLaren and Red Bull rolled into SQ2 with a double-cool brake setup on the Medium, and that cooling carried straight onto the Soft in SQ3, which has a lower working window and runs at a lower temperature anyway.

Mercedes went a different way.

It cost them Sprint pole. By 0.222 seconds.

🚨 Not joined The Race Strategy Society yet? Click for a time limited link to sign up now: https://t.co/6pytLhItin
🎥 Want more? Subscribe to the Strategy Channel for extended video briefings: : https://t.co/tpUi54pnvZ
🎧 Prefer your strategy by podcast? We're now wherever you get your podcasts.

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[Amazon Web Services @awscloud]

All-Rounder circuits like Miami mean there’s no place to hide.

Grip ✓ Stability ✓ Power ✓ Efficiency ✓

Miss one and Miami will expose you.

Circuit Classes—a new way to understand race strategy—just dropped.

[Ruth Buscombe @RuthBuscombe]

🇺🇸 EXTENDED Miami GP Strategy Briefing AND The 2026 Regulation Changes E... https://t.co/t1FvX7KH04 via @YouTube

[Ruth Buscombe @RuthBuscombe]

F1 is back. Miami changes the rules on Friday. 👉

The full EXTENDED briefing is live on YouTube. We get into:

🔋 The new regs — what's actually changing
⚡ Super-clipping in plain English
🏁 Why Miami has never been a 1-stop vs 2-stop race
🏆 The 2023 Verstappen masterclass that started a 10-race streak
🧠 The call I think Mercedes are going to have to make on Sunday

Link in stories for the full thing. Or grab the same content on the podcast wherever you listen 🎧

Not joined The Race Strategy Society yet?
🚨 Not joined The Race Strategy Society yet? Click for a time limited link to sign up now: https://t.co/6pytLhItin
🎥 Want more? Subscribe to the Strategy Channel for extended video briefings: : https://t.co/tpUi54pnvZ

[Ruth Buscombe @RuthBuscombe]

Florida's hot. F1's back. Regs change Friday. Swipe for the Strategy. 👉

🚨 EXTENDED Miami Race Strategu Briefing and 2026 Reg update in your inboxes now and YouTube briefing coming today!

Miami isn't a 1-stop vs 2-stop race. Never has been. It's a 1-stopper for everyone. Only question is when. 3 of 4 Miami Sundays were decided by stop timing. 1 by pure McLaren pace. 0 by stop count. (If anyone told you otherwise, they haven't watched a Miami race.)

In 2023 Verstappen went P9 to P1 starting on Hards while 8 of the top 10 started on Mediums. Brave call, beautifully executed, and the thing I love isn't the result, it's the statement. Same toy set, our drivers play to win, the rest of you don't scare us. First of 10 consecutive wins. Longest streak in F1 history.

3 races in, Mercedes have won all 3. Antonelli leads the championship, the youngest ever. Russell, 9 points back. If Mercedes hold their cushion, the most interesting call on Sunday won't be at the front. It'll be in whichever Mercedes garage qualifies behind the other one. The 2023 playbook is right there. Someone might dust it off.

Heat's on. F1's back.

🚨 Not joined The Race Strategy Society yet? Click for a time limited link to sign up now: https://t.co/6pytLhItin
🎥 Want more? Subscribe to the Strategy Channel for extended video briefings: : https://t.co/tpUi54pnvZ
🎧 Prefer your strategy by podcast? We're now wherever you get your podcasts.

[Ruth Buscombe @RuthBuscombe]

Florida's hot. F1's back. Regs change Friday. Swipe for the Strategy. 👉

🚨 EXTENDED Miami Race Strategu Briefing and 2026 Reg update in your inboxes now and YouTube briefing coming today!

5 weeks since Suzuka. Bahrain and Saudi off the calendar. We've gone from Japan to Florida, called it a break, and quietly hoped nobody used the 5 weeks better than we did. (Spoiler: they did.)

The factory's been awake the whole time. The race team has spent 5 weeks on sims, data correlation, and pit stops until the gun-man's dreaming about wheel nuts. 12 garages, 12 simulations, 12 different answers. Sunday tells us who was closest.

3 things change Friday: battery harvest cap drops 8MJ → 7MJ per lap. Super-clipping goes UP from 250kW to 350kW. FP1 stretches to 90 minutes (teams would have taken 9 days, but).

In 3 words: less management, more driving.

🚨 Not joined The Race Strategy Society yet? Click for a time limited link to sign up now: https://t.co/6pytLhItin
🎥 Want more? Subscribe to the Strategy Channel for extended video briefings: : https://t.co/tpUi54pnvZ
🎧 Prefer your strategy by podcast? We're now wherever you get your podcasts.

[Open Community Experience @ocxconference]

Exceptional keynote by @RuthBuscombe, from Formula 1. She took us into the reality of Formula 1, where performance is measured in small margins: “The difference between first and second comes down to a matter of centimetres.”

[Data Decoded: MCR: 13/14 Oct 26, LDN: 14/15 Apr 27 @DataDecoded_HQ]

Two headline keynotes. One challenge: turning data into decisions that deliver. 🚀🏎️

🧠 Dr. Jeevan Perera (@NASA)
AI, robotics & decision-making in mission-critical environments
🔗 https://t.co/aK9dQohxWD

🏎️ @RuthBuscombe (F1)
How elite teams turn data into real-time decisions
🔗 https://t.co/uhwposyttj

📍 22–23 April | London
🎟️ Free registration

#DataDecoded #AI #Data