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Horse profile

Nebrook Star (IRE)

3yo filly · Trainer Diego Dias · Owner Diego Dias
by Mehmas (IRE) out of Star Empress (IRE) (Tamayuz)
8 runs · 8 courses · from May 2025
As at 25 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
Last run 23 Aug 2026 · 12th of 19 Last raced off OR 60
KTB Profile

Nebrook Star is a filly by Mehmas out of a Tamayuz mare who has yet to win from eight starts, all of them at under 6f. Her best effort came when third of five at Yarmouth in Jul 2025. She last ran at Naas in Aug 2026, finishing 12th of 19 in a handicap off an official rating of 60, which was 11lb below her highest ever mark.

Based on 8 archived runs · run-style from 7 commented runs since May 2025 · updated 25 Oct 2026
KTB at a glance OR ↓ 11lb off peak
Official rating60↓ 11lb off peak
60 60–71

KTB Speed and Rating

KTB Speed

Best recent Speed 81 the best of the last 3 graded (A or B) runs · Lingfield (AW), 24 Jan 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 8 figures · best 84C · median 70.5
GoingRunsBestMedianSince 25 Oct 2025
Good381C681 run · —
Standard (AW)281A72.52 runs · 81 / 72.5
Good to Firm284C62.51 run · —
Good to Soft1———
DistanceRunsBestMedianSince 25 Oct 2025
Under 6f884C70.54 runs · 84 / 72.5

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 8 figures from 8 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 73A the best of the last 3 rated runs · Curragh (IRE), 18 Jul 2026 Official rating 60 at the last run, 23 Aug 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 8 figures · best 73A · median 59.5
GoingRunsBestMedianSince 25 Oct 2025
Good370B641 run · —
Standard (AW)258A572 runs · 58 / 57
Good to Firm273A57.51 run · —
Good to Soft1———
DistanceRunsBestMedianSince 25 Oct 2025
Under 6f873A59.54 runs · 73 / 61

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 8 figures from 8 runs · as at 4 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 7 analysed runs since May 2025

  • Held up 2 (29%) · 0 wins
  • Mid-division 2 (29%) · 0 wins
  • Led 2 (29%) · 0 wins
  • Prominent 1 (14%) · 0 wins

Pedigree intelligence

Sire
Mehmas (IRE)

Progeny in our archive have won 11.6% of 8,139 runs since Jan 2008 (747 horses).

GoingRunsWinsSRvs sireThis horse
Firm19210.5%−1.1—
Good to Firm1,45717912.3%+0.70 from 2
Good1,95722111.3%−0.30 from 3
Good to Soft7548411.1%−0.50 from 1
Soft9229610.4%−1.2—
Heavy2142210.3%−1.3—
Standard (AW)2,81633912%+0.40 from 2
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f2,09326712.8%+1.20 from 8
6f – 7f4,28247611.1%−0.5—
1m – 1m1f1,36315611.4%−0.2—
1m2f – 1m4f3644311.8%+0.2—
1m5f – 2m3013.3%−8.3—
2m1f – 2m4f600%−11.6—
Over 3m100%−11.6—

Flat and jumps together (all codes) · since Jan 2008 · as at 25 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Star Empress (IRE) (Tamayuz)

1 sibling in the archive, 0 winners.

ProduceRunsWinsWin tripsBest grade
Midnight Empress (IRE)10——

Record by conditions

GoingRunsWinsSR£1
Good 3 0 0% −3.00
Standard (AW) 2 0 0% −2.00
Good to Firm 2 0 0% −2.00
Good to Soft 1 0 0% −1.00

ClassRunsWinsSR£1
Class 5 3 0 0% −3.00
Class 4 2 0 0% −2.00

CourseRunsWinsSR£1
Naas (IRE) 1 0 0% −1.00
Dundalk (AW) (IRE) 1 0 0% −1.00
Curragh (IRE) 1 0 0% −1.00
Lingfield (AW) 1 0 0% −1.00
Nottingham 1 0 0% −1.00
Yarmouth 1 0 0% −1.00
Bath 1 0 0% −1.00
Lingfield 1 0 0% −1.00

JockeyRunsWinsSR£1
Diego Lima 2 0 0% −2.00
Darragh Keenan 2 0 0% −2.00
Jamie Orr 1 0 0% −1.00
Oisin Orr 1 0 0% −1.00
Luke Morris 1 0 0% −1.00
Callum Shepherd 1 0 0% −1.00

HeadgearRunsWinsSR£1
Blinkers 3 0 0% −3.00
Tongue tie + blinkers 3 0 0% −3.00
None 2 0 0% −2.00

SeasonRunsWinsSR£1
2026 4 0 0% −4.00
2025 4 0 0% −4.00

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
2026 · 4 runs
23 Aug 26+8d Naas (IRE) Big Evs At Tally-Ho Handicap 5f · Good · 19 ran Dwelt at the break - held a forward pitch on the far flank - under pressure 2f out - fell away sharply inside the final furlong to finish 12th 12/19 hd 9-7 6049C64A Jamie Orr 22/1
15 Aug 26+28d Dundalk (AW) (IRE) Irish Stallion Farms EBF Maiden 5f · Standard · 12 ran Knocked about leaving stalls - settled midfield close to the rail fighting for restraint - urged into 5th two out then unable to find more and finished 7th 7/12 1 9-3 6664A58A Diego Lima 10/1
18 Jul 26+175d Curragh (IRE) WTW Willis Handicap 5f · Good To Firm · 18 ran slow to break - drifted right and pulled hard through the pack - 8th at halfway and up to 5th in good order 2f out - driven into 6th 1f out - faded in the final 100 yards 10/18 ½ 8-11 6784C73A Diego Lima 66/1
24 Jan 26+177d Lingfield (AW) Always Gamble Responsibly At BetMGM Handicap Class 5 · 5f · Standard · 6 ran Held up at the back - nudged into contention approaching final 2f - lost momentum in closing stages to finish sixth 6/6 nk 9-9 6981A56B Darragh Keenan 22/1
2025 · 4 runs
31 Jul 25+22d Nottingham PricedUp EBF Fillies' Novice Stakes (GBB Race) Class 4 · 5f · Good To Soft · 7 ran Went straight to the front - driven on approaching the furlong marker - overtaken close home and weakened to finish 4th 4/7 1 9-2 7173B55A Oisin Orr 10/3
09 Jul 25+25d Yarmouth British Stallion Studs EBF Fillies' Novice Stakes (GBB Race) Class 5 · 5f · Good · 5 ran Ran the far side on own early advantage - driven with vigour past the furlong pole - margin shrinking into the final furlong before being overtaken close home - unable to find more and finished third 3/5 nk 9-2 —81C70B Darragh Keenan 100/1
14 Jun 25+14d Bath Al Basti Equiworld Dubai Fillies' Novice Stakes (GBB Race) Class 4 · 5f · Good To Firm · 10 ran Swerved left at the off - fought for control early - sat close to the pace - pressed for effort two out and soon lost ground - finished well held in 10th 10/10 hd 9-2 —41A42A Luke Morris 16/1
31 May 25 Lingfield Betting Room Fillies' Novice Stakes (GBB Race) Class 5 · 5f · Good · 6 ran Sat close to leader until past the furlong marker - couldn't quicken through final furlong - finished fourth 4/6 2¾ 9-2 —68A61B Callum Shepherd 14/1

Quick answers

How many races has Nebrook Star won?
Nebrook Star (IRE) has yet to win, from 8 archived starts between 2025 and 2026.
Who trains Nebrook Star?
Nebrook Star (IRE) is trained by Diego Dias, who saddled the horse on its most recent run on 23 August 2026.
Who is Nebrook Star's sire?
Nebrook Star (IRE) is by Mehmas (IRE) out of Star Empress (IRE), whose sire is Tamayuz.
What is Nebrook Star's official rating?
The most recent official rating on record is 60, from the run on 23 August 2026. The highest on record is 71.
What is Nebrook Star's sire's record?
Mehmas (IRE)'s progeny in our archive have won 11.6% of 8,139 runs since Jan 2008 (747 horses), Flat and jumps together.
Who are Nebrook Star's siblings?
Out of Star Empress (IRE), Nebrook Star (IRE) has 1 other produce in our archive, 0 of them winners. As at Oct 2026.

Record shown from May 2025. 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.