G1 Preview – Randwick: Day 1 of The Championships (4x Group 1’s)

It’s time for the pinnacle of the Autumn Carnival.

Day 1 of The Championships at Randwick —
four Group 1’s and proper depth across every race.

Let’s get into it.

Inglis Sires (1400m) – Randwick R6

I can’t work this out…

🐎 STREISAND

She should be shorter than $3.20.

Yes, Campione D’Italia was the flashing light run in the Slipper —
but the race was set up for him.

It wasn’t for Streisand.

She:

  • Led at a fast tempo

  • Had two horses eyeballing her

  • Both of them folded

Yet she still fought on and was only beaten by Guest House.

That’s a proper run.

Now:

  • She gets a perfect map

  • Likely ridden with cover for the first time

She started shorter than all of these in the Slipper, produced the best run, and now gets the right setup.

👉 Why is she $3.20?

✅ Verdict – Inglis Sires

STREISAND (WIN)
Best run in the Slipper + perfect map = hard to beat.

TJ Smith Stakes (1200m) – Randwick R7

This is tricky.

🐎 JIMMY’S STAR

Disappointing first-up — no dressing it up.

Yes, wrong spot… but we expected more.

That said:

  • Prior form = elite

  • Consistent profile

👉 Good horses can bounce off one bad run.

🐎 TENTYRIS

Very interesting.

  • Brilliant first-up win (Lightning)

  • Forgive the Newmarket:

    • Wrong spot

    • Race-shape against

    • Cardiac arrhythmia

That’s a genuine excuse.

The knock:
👉 Inside draw isn’t ideal.

🐎 JOLIESTAR

The knock used to be consistency.

Not anymore.

  • G2 win first-up

  • Backed it up with a G1 Canterbury Stakes win

  • Tick-over trial since

  • Maps perfectly

Plenty to like.

Final Thought

You could go a few ways here…

So I’ll stick with who I think is the best horse.

✅ Verdict – TJ Smith Stakes

TENTYRIS (WIN)
Zahra will offset the draw — expect him to blouse them late.

Doncaster Mile (1600m) – Randwick R8

Let’s ask the question…

👉 What price should Sheza Alibi be?

I’ve got her as a better than 50% chance.
That’s odds-on.

🐎 SHEZA ALIBI

Had no favours last start.

  • Began well

  • J-Mac kicked up on Autumn Boy → forced her wide

  • Covered ground early in a fast race

Still:

👉 The way she let rip late… she’s very good.

Now:

  • Meets Autumn Boy better at the weights

  • He’s since won a G1 — strong form reference

Even with blinkers back on, I can’t see him turning the tables.

🐎 LINEBACKER

Bit stiff in this race last year.

Two runs back this prep have been solid —
he’s ready to peak.

53kg suits.

🐎 HEADLEY GRANGE

Very good first-up → backed it up in the George Ryder.

Third-up peak run coming.

But:
👉 Is he good enough to beat her?
She’d need to underperform.

🐎 STEPARTY

Flying.

  • Huge run in the All-Star Mile

  • Covered ground in a fast race

That’s strong form.

Can sneak into a place.

✅ Verdict – Doncaster Mile

SHEZA ALIBI (WIN)
49kg, elite turn of foot — they’ll struggle to hold her out.

Australian Derby (2400m) – Randwick R9

Let’s be honest…

🐎 OBSERVER

Dual G1 winner — but is he that good?

I don’t think so.

  • Honest horse

  • But his ratings don’t stack up outside his age group

  • Hard to see him measuring up at WFA level later

This is his race type — so he’s competitive…

👉 But he shouldn’t be favourite.

Only major tick:
J-Mac.

🐎 GREEN SPACES

Should be favourite.

He’s building perfectly:

  • Improved each run this prep

  • Strong last start over 2000m

  • Race-shape against → still ran past Observer

And importantly:
👉 His last 200m was the best of the race.

Now:

  • Steps to 2400m

  • Peak run

  • Still improving

Everything points to him.

✅ Verdict – Australian Derby

GREEN SPACES (WIN)
Peak setup + strongest late profile = the one.

Good luck if you follow,

BJ

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Blake Johnston

Blake Johnston is an Australian horse racing analyst, professional punter, and founder of The Leg Up Australia, a leading platform providing horse racing tips, betting strategy, and market analysis for Australian racing.

Before working full-time for punters, Blake spent years inside the betting industry, working with major bookmakers including bet365, UBet (Tabcorp), Unibet, and TopBetta (now BetMakers). His role involved compiling markets, assessing winning probabilities, and understanding how bookmakers frame prices — experience that now shapes his analytical approach to betting.

This industry background gives Blake a rare perspective on how betting markets are created, where prices can be wrong, and how disciplined punters can identify long-term value in horse racing markets.

Blake is also the 2024 Tipster of the Year (TheGreatTipOff) and hosts one of Australia’s most popular horse racing podcasts, where he breaks down races, discusses betting strategy, and helps punters understand the thinking behind professional wagering decisions.

Through The Leg Up, Blake provides:

• Daily horse racing tips across major Australian meetings

• Saturday feature race previews and Group 1 analysis

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• Access to a fast-growing Discord community of serious punters

Blake’s philosophy is simple: successful punting isn’t about chasing winners — it’s about finding value, managing risk, and beating the market over time.

His work focuses on structured form analysis, speed maps, race shape, and market intelligence, helping everyday punters approach betting with the discipline and framework used by professionals.

Today, The Leg Up Australia has built a community of thousands of punters who follow Blake’s insights to bet smarter and understand the game behind the game.

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Horses to Follow - Rosehill (March 28)