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Horse profile

Netherstream (GB)

2yo colt · Trainer Jane Chapple-Hyam · Owner Mr P. W. Harris
by Pinatubo (IRE) out of Mozzarella (FR) (Power)
4 runs · 3 courses · from Aug 2026
As at 23 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
Won at Newmarket Last run 10 Oct 2026 · 5th of 6 Last raced off OR 83
KTB Profile

Netherstream is a colt by Pinatubo out of the Power mare Mozzarella who has one win from four turf starts. He won the Plantation Stud British EBF Maiden Stakes at Newmarket over 1m – 1m1f on good ground in Sep 2026 at Class 3 level. All his wins have come at Class 3. He finished fifth of six, having raced prominently, when last seen at Newmarket in Oct 2026 in the Native Trail Zetland Stakes, a Class 1 race, off an official rating of 83.

Based on 4 archived runs · run-style from 3 commented runs since Aug 2026 · updated 23 Oct 2026
KTB at a glance Win at Class 3

KTB Speed and Rating

KTB Speed

Best recent Speed 77 the best of the last 3 graded (A or B) runs · Newmarket, 24 Sep 2026

How fast the horse ran, as points against the day-corrected standard time for its course and distance: 100 is the median GB Class 4 handicap winner on that code; one point is 0.1% of the standard time. A, B or C is how much the day's card could tell us, not how good the run was. What this means →

Flat 4 figures · best 77A · median 70.5
GoingRunsBestMedianSince 23 Oct 2025
Good377A643 · 77 / 64
Good to Firm1——1 · —
DistanceRunsBestMedianSince 23 Oct 2025
6f – 7f277B69.52 · 77 / 69.5
1m2f – 1m4f1——1 · —
1m – 1m1f1——1 · —

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 4 figures from 4 runs · as at 18 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 76A the best of the last 3 rated runs · Sandown, 28 Aug 2026 Official rating 83 at the last run, 10 Oct 2026

What the horse achieved in each race, in pounds on the official-rating scale, from the weight carried, the lengths beaten and the race's own level solved across the archive — never the market, never the official rating as a starting point. The headline is the best of the horse's last three rated runs on that code. A, B or C on a run is how much known form was in that race. What this means →

Flat 4 figures · best 76A · median 75
GoingRunsBestMedianSince 23 Oct 2025
Good376A753 · 76 / 75
Good to Firm1——1 · —
DistanceRunsBestMedianSince 23 Oct 2025
6f – 7f276A75.52 · 76 / 75.5
1m2f – 1m4f1——1 · —
1m – 1m1f1——1 · —

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 4 figures from 4 runs · as at 18 Oct 2026 · a record, not a forecast

Both figures are KTB's own, computed from the archive; no vendor rating enters either. Every run's figure is on its form line below with its grade. Grades measure how much the archive could see, never the merit of the run.

Run style from 3 analysed runs since Aug 2026

  • Prominent 3 (100%) · 1 win

Pedigree intelligence

Sire
Pinatubo (IRE)

Progeny in our archive have won 13.9% of 1,078 runs since Jan 2008 (181 horses).

GoingRunsWinsSRvs sireThis horse
Firm100%−13.9—
Good to Firm1942814.4%+0.50 from 1
Good2793813.6%−0.31 from 3
Good to Soft1191916%+2.1—
Soft1151311.3%−2.6—
Heavy34514.7%+0.8—
Standard (AW)3354714%+0.1—
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f731115.1%+1.2—
6f – 7f5447513.8%−0.10 from 2
1m – 1m1f2864114.3%+0.41 from 1
1m2f – 1m4f1442215.3%+1.40 from 1
1m5f – 2m2813.6%−10.3—
2m1f – 2m4f300%−13.9—

Flat and jumps together (all codes) · since Jan 2008 · as at 23 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Mozzarella (FR) (Power)

No other produce in our archive. It holds racing in Great Britain, Ireland and France from 2005, so siblings racing elsewhere won’t appear here.

Record by conditions

GoingRunsWinsSR£1
Good 3 1 33% +1.00
Good to Firm 1 0 0% −1.00

ClassRunsWinsSR£1
Class 3 3 1 33% +1.00
Class 1 1 0 0% −1.00

CourseRunsWinsSR£1
Newmarket 2 1 50% +2.00
Sandown 1 0 0% −1.00
Newmarket (July) 1 0 0% −1.00

DistanceRunsWinsSR£1
6f – 7f 2 0 0% −2.00
1m2f – 1m4f 1 0 0% −1.00
1m – 1m1f 1 1 100% +3.00

JockeyRunsWinsSR£1
David Egan 2 1 50% +2.00
Billy Loughnane 1 0 0% −1.00
Oisin Murphy 1 0 0% −1.00

Splits include every sample, however small — muted rows are under 3 runs. A one-from-one record is a fact, not a trend: read the Runs column before the strike rate.

Form

DateCourseRace PosBtn Wgt ORSpdKTB Jockey SP
10 Oct 26+16d Newmarket Native Trail Zetland Stakes (Group 3) Class 1 · 10f · Good · 6 ran Prominent early - urged along and left behind 3f out - well adrift from 2f out and finished 5th 5/6 16 9-4 8364C72C Billy Loughnane 14/1
24 Sep 26+27d Newmarket Plantation Stud British EBF Maiden Stakes (Colts And Geldings Only) Class 3 · 8f · Good · 7 ran Settled third early - moved into second before the furlong marker - pressed the front-runner with 2f left - hit the front inside the final furlong - pulled clear to the line 1/7 9-2 —77A75B David Egan 3/1
28 Aug 26+21d Sandown Chasemore Farm EBF Maiden Stakes Class 3 · 7f · Good · 10 ran Drifted slightly left at the break - held a forward position before being nudged for effort inside the final furlong - stayed on at one speed to finish fifth 5/10 nk 9-2 —62B76A Oisin Murphy 5/1
07 Aug 26 Newmarket (July) Zyn Frontrunner EBF Newcomers' "Confined" Maiden Stakes (For Horses Which Have Never Run) (GBB Race) Class 3 · 7f · Good To Firm · 8 ran Sat close to the pace early - faded from contention over 2f out before finding renewed energy in the closing stages to snatch third 3/8 1¾ 9-7 —77B75A David Egan 12/1

Quick answers

How many races has Netherstream (GB) won?
Netherstream (GB) won 1 of 4 archived starts in 2026, a strike rate of 25%. Placed 2 times in total (50% of starts).
Who trains Netherstream (GB)?
Netherstream (GB) is trained by Jane Chapple-Hyam, who saddled the horse on its most recent run on 10 October 2026.
Who is Netherstream (GB)'s sire?
Netherstream (GB) is by Pinatubo (IRE) out of Mozzarella (FR), whose sire is Power.
What going does Netherstream (GB) prefer?
Netherstream (GB) has the best record on good going: 1 win from 3 starts (33.3%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
What is Netherstream (GB)'s official rating?
The most recent official rating on record is 83, from the run on 10 October 2026. That is also the highest on record.
What is Netherstream (GB)'s sire's record?
Pinatubo (IRE)'s progeny in our archive have won 13.9% of 1,078 runs since Jan 2008 (181 horses), Flat and jumps together.

Record shown from August 2026. Our archive holds racing in Great Britain, Ireland and France from January 2005. Runs in other countries are not in it, and earlier runs are not available from our data provider. In-running comments are available from 2024 onward.