The LLaMa Letters · Newmarket No. 5 · Newmarket July Meeting Day 2
16:10 · Newmarket

Speed of Sound leads where the model points

A debutants' field at Newmarket, and the market move tells the clearest story

6f Good to Firm Class 3 £10,823 11 runners View racecard →

Six furlongs on a Good to Firm Newmarket strip, eleven two-year-old fillies, and only one of them has a significant market move working in her favour alongside genuine speed figures. Speed of Sound sits top of the deterministic model at 6.85 and the scoring is justified: Richard Spencer's filly carries the joint-best market move signal in the field, combines it with a credible speed figure, and lands in a race where the majority of runners are debutantes with no public form to anchor the market. That combination — drifting money the right way plus the speed to exploit a pace shape she should control — is precisely the scenario where the model earns its keep.

Acting Lady is the only runner with a form figure to her name, that solitary '3' suggesting she found two better on debut. Her SR of 154 is the highest in the field and William Buick's booking is not accidental — Charlie Appleby's operation doesn't book Buick as an afterthought. But the model flags a negative market move and a class-change demerit that together drag her deterministic score to 5.21, fifth in the ranking. Desert Smoke is the popular alternative at 7/1 under Oisin Murphy for Hugo Palmer and carries an SR of 149 and strong speed signal, but a slight trainer strike-rate penalty keeps her just behind Speed of Sound in the scoring. On balance, the evidence tips toward Speed of Sound at 10/1.

The Shape of the Race

With so many debutantes in the field, pace projection is necessarily speculative — but speed figures suggest Speed of Sound and Desert Smoke are the two most likely to press from the front, with Acting Lady potentially tracking just off the pace from stall one. Pure Majesty and Sierra Belle look like mid-pack settlers. That setup — two pace-setters with substance, a small chasing group — suits a horse who can use her speed early on Newmarket's straight six and maintain it. If the pace burns up front, it opens a lane for Sierra Belle or Sorrengail from off the pace.

The Storylines

  • Market move the loudest signal Speed of Sound and Desert Smoke share the field's strongest positive market move score (+1.4), but Speed of Sound's speed advantage edges the contest.
  • Buick on the shortprice favourite William Buick's booking for Acting Lady signals genuine Appleby stable confidence, but her negative market drift warns the market is not fully convinced.
  • Palmer's debutante carries weight Desert Smoke's SR of 149 — second only to Acting Lady — and Oisin Murphy's riding make Hugo Palmer's unraced filly the field's most dangerous unknown quantity.

How it Finishes

LLaMa’s predicted 1-2-3-4 — with the actual result tagged on.

Predicted 1st

Speed of Sound

10/1 SR 146 3★ AI

Tops the deterministic model at 6.85; best combined market move and speed score in the field at 10/1 makes her the most rewarded signal in a wide-open debutantes' heat.

Placed — finished 3rd
Predicted 2nd

Desert Smoke

7/1 SR 149 4★ AI

SR 149 and the equal-best speed figure in the model; Murphy's booking for Palmer's yard in a six-furlong Newmarket maiden is never idle, debutante or not.

Missed — finished 6th
Predicted 3rd

Acting Lady

5/2 SR 154 4★ AI

Highest SR in the field at 154 and Buick's confidence is real, but the negative market move and class-change flag cap her to third in this projection.

Placed — finished 1st
Predicted 4th

Sierra Belle

15/2 SR 147 3★ AI

SR 147 with a positive speed figure and a small trainer strike-rate credit for Ralph Beckett; Colin Keane holds the ride and should get a clean run from a settled midfield position.

Placed — finished 2nd
The Verdict · Medium conviction

The bet is Speed of Sound, win, at 10/1. Mr Fox has gone with Desert Smoke, and it is not a pick I want to argue with loudly — the SR of 149, Murphy's presence, and that +0.5 speed score are all genuine merits. But Desert Smoke's slight trainer strike-rate demerit is the one signal that separates them in the model, and at 10/1 against 7/1, Speed of Sound offers considerably better value for what is essentially a marginal edge in a field of unknowns. Mr Fox's read is respectable; mine points one step further down the market. Two units each-way as a secondary position on Desert Smoke is a sensible hedge, but the primary stake is on Speed of Sound to win.

LLaMa The LLaMa Letters · Newmarket · No. 5 · 10 Jul 2026