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Horse profile

Boston Boy (GB)

7yo gelding · Trainer Jonjo & A J O'Neill · Owner Tanzanite
by Black Sam Bellamy (IRE) out of Samrana (FR) (Tagula)
13 runs · 13 courses · from Mar 2024
As at 25 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
Won at Fontwell Last run 1 Apr 2026 Last raced off OR 101
KTB Profile

Boston Boy is 1 from 13 with the win in a Class 4 maiden hurdle at Fontwell in Mar 2025 over 2m1f – 2m4f on good ground. All four runs over 2m1f – 2m4f have produced that sole success while eight starts at 1m5f – 2m brought no wins. The gelding last ran at Southwell in Apr 2026 off an official rating of 101, 11lb below his highest ever mark of 112.

Based on 13 archived runs · run-style from 10 commented runs since Nov 2024 · updated 25 Oct 2026
KTB at a glance Wins on good or faster Win at Class 4 OR ↓ 11lb off peak
Official rating101↓ 11lb off peak
101 101–112

KTB Speed and Rating

KTB Speed

Best recent Speed 120 the best of the last 3 graded (A or B) runs · Fontwell, 28 Mar 2025

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 →

Jumps 9 figures · best 120B · median 88
GoingRunsBestMedianSince 25 Oct 2025
Good4120B102.51 run · —
Good to Soft388A401 run · —
Soft291B78.5—
DistanceRunsBestMedianSince 25 Oct 2025
1m5f – 2m691B60.52 runs · 55 / 46.5
2m1f – 2m4f2120B113.5—
2m5f – 3m1———

Of 13 runs looked at, 4 have no figure: did not complete (4).

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 9 figures from 13 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 120A the best of the last 3 rated runs · Punchestown, 1 May 2025 Official rating 101 at the last run, 1 Apr 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 →

Jumps 9 figures · best 128A · median 111
GoingRunsBestMedianSince 25 Oct 2025
Good4128A108.51 run · —
Good to Soft3120A1111 run · —
Soft2120A108.5—
DistanceRunsBestMedianSince 25 Oct 2025
1m5f – 2m6120A1042 runs · 96 / 94
2m1f – 2m4f2128A122—
2m5f – 3m1———

Of 13 runs looked at, 4 have no figure: did not complete (or a non-runner row) (4).

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 9 figures from 13 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 10 analysed runs since Nov 2024

  • Mid-division 4 (40%) · 1 win
  • Held up 3 (30%) · 0 wins
  • Prominent 2 (20%) · 0 wins
  • Led 1 (10%) · 0 wins

Pedigree intelligence

Sire
Black Sam Bellamy (IRE)

Progeny in our archive have won 10.3% of 4,683 runs since Jan 2008 (466 horses).

Weakest over 1m2f – 1m4f (all codes): 5.5% from 145.

GoingRunsWinsSRvs sireThis horse
Firm400%−10.3—
Good to Firm112108.9%−1.4—
Good1,3341138.5%−1.81 from 5
Good to Soft1,072989.1%−1.20 from 6
Soft1,40816811.9%+1.60 from 2
Heavy6278313.2%+2.9—
Standard (AW)126118.7%−1.6—
Distance (all codes)RunsWinsSRvs sireThis horse
6f – 7f1417.1%−3.2—
1m – 1m1f2926.9%−3.4—
1m2f – 1m4f14585.5%−4.8—
1m5f – 2m1,30715211.6%+1.30 from 8
2m1f – 2m4f1,4991429.5%−0.81 from 4
2m5f – 3m1,31914110.7%+0.40 from 1
Over 3m3703710%−0.3—

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
Samrana (FR) (Tagula)

4 siblings in the archive, 2 winners — best of them Sammy Bill (GB) (2 wins).

The wins came over 2m–2m4½f; the highest grade won is Class 3 (Sammy Bill (GB)).

ProduceRunsWinsWin tripsBest grade
Sammy Bill (GB)622m4f–2m4½fClass 3
Samarayia (GB)612mClass 4
Bowland Belle (GB)50——
The Foggy Dew (GB)10——

Record by conditions

GoingRunsWinsSR£1
Good to Soft 6 0 0% −6.00
Good 5 1 20% +0.00
Soft 2 0 0% −2.00

ClassRunsWinsSR£1
Class 4 7 1 14% −2.00
Class 3 3 0 0% −3.00
Class 5 2 0 0% −2.00

CourseRunsWinsSR£1
Southwell 1 0 0% −1.00
Sedgefield 1 0 0% −1.00
Lingfield 1 0 0% −1.00
Huntingdon 1 0 0% −1.00
Punchestown 1 0 0% −1.00
Fontwell 1 1 100% +4.00
Ascot 1 0 0% −1.00
Doncaster 1 0 0% −1.00
Windsor 1 0 0% −1.00
Leicester 1 0 0% −1.00
Uttoxeter 1 0 0% −1.00
Market Rasen 1 0 0% −1.00
Warwick 1 0 0% −1.00

DistanceRunsWinsSR£1
1m5f – 2m 8 0 0% −8.00
2m1f – 2m4f 4 1 25% +1.00
2m5f – 3m 1 0 0% −1.00

JockeyRunsWinsSR£1
Jonjo O'Neill Jr 10 1 10% −5.00
Richie McLernon 3 0 0% −3.00

HeadgearRunsWinsSR£1
None 8 1 13% −3.00
Tongue tie 3 0 0% −3.00
Blinkers 1 0 0% −1.00
Cheekpieces 1 0 0% −1.00

SeasonRunsWinsSR£1
2026 2 0 0% −2.00
2025 6 1 17% −1.00
2024 5 0 0% −5.00

TypeRunsWinsSR£1
Hurdle 7 1 14% −2.00
Chase 4 0 0% −4.00
NH Flat 2 0 0% −2.00

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 · 2 runs
01 Apr 26+56d Southwell Easter Family Fun Day 5th April Novices' Handicap Chase (GBB Race) Class 4 · 20.5f · Good · 6 ran Settled in close order early - slipped to the rear after the 10th and driven on - pulled up before the 12th PU/6 — 11-6 101—— Jonjo O'Neill Jr 13/2
04 Feb 26+45d Sedgefield Chris Blanckley Supporting Fairlight Studio Handicap Chase (GBB Race) Class 4 · 16.5f · Good To Soft · 6 ran Settled towards the back - lost touch three out and dropped away - pulled up before the last PU/6 — 11-9 105—— Jonjo O'Neill Jr 11/2
2025 · 6 runs
21 Dec 25+49d Lingfield BeatWright Beat The Wright Way Handicap Chase (GBB Race) Class 4 · 16f · Good To Soft · 6 ran Held up towards the back - urged forward before 4f out - lost touch and dropped away with 3f left - eventually well held 5/6 31 11-8 10838C92C Jonjo O'Neill Jr 10/3
02 Nov 25+185d Huntingdon PricedUp Macer Gifford Handicap Chase (GBB Race) Class 4 · 16.5f · Good · 9 ran Held a forward position early - came under pressure and dropped away before 2 out - well held at the finish 7/9 13 11-3 11055C96C Richie McLernon 14/1
01 May 25+34d Punchestown Specialist Group Handicap Hurdle 16.5f · Yielding · 22 ran Settled in the pack - squeezed for space approaching 2 out - pushed along in 9th at the last with no further headway made 8/22 hd 11-2 10991B120A Richie McLernon 12/1
28 Mar 25+41d Fontwell Millstone Landscapes Sponsored Charity Race Maiden Hurdle (GBB Race) Class 4 · 17.5f · Good · 10 ran Settled in the pack early moving well - crept forward approaching two out to join the front - shared advantage before the last - locked together with the second all the way up the run-in - edged clear close home to prevail 1/10 11-5 111120B128A Jonjo O'Neill Jr 4/1
15 Feb 25+22d Ascot Best Odds On The Betfair Exchange Handicap Hurdle (Challenger Stayers Hurdle Series Qualifier) Class 3 · 23.5f · Good · 17 ran Settled in the pack early - improved into 6th - driven approaching final turn but found nothing before finishing well held 11/17 20 11-1 11298C101C Jonjo O'Neill Jr 20/1
24 Jan 25+40d Doncaster Virgin Bet Daily Price Boosts Novices' Hurdle (GBB Race) Class 3 · 16.5f · Good To Soft · 8 ran Settled at the back early - clipped the first fence - squeezed through into contention approaching 3 out - moved up into third in the closing stages - kept on but couldn't reach the leading duo 3/8 3½ 11-2 —40B120A Jonjo O'Neill Jr 9/1
2024 · 5 runs
15 Dec 24+27d Windsor Fitzdares Royal Windsor Racecourse Maiden Hurdle (GBB Race) Class 4 · 16f · Good To Soft · 11 ran Set the pace from the start - travelling comfortably before departing the course 2 out RO/11 — 11-7 ——— Richie McLernon 12/1
18 Nov 24+17d Leicester Annual Membership At LeicesterRaces Great Christmas Present Maiden Hurdle (GBB Race) Class 3 · 20.5f · Good To Soft · 12 ran Settled off the pace early - fighting for control with the rider - moved into second by the 4th - drifted left at the following fence - hit the front at the 7th - overtaken approaching the home turn then ran out two out RO/12 — 11-4 ——— Jonjo O'Neill Jr 18/1
01 Nov 24+205d Uttoxeter Walton Homes 40th Anniversary Novices' Hurdle (GBB Race) Class 4 · 20f · Good · 11 ran Sat close to pace early - pushed along after 3 out - hit front approaching 2 out but soon overtaken - stayed on in defeat for 4th 4/11 7 11-0 —107B116A Jonjo O'Neill Jr 28/1
10 Apr 24+31d Market Rasen Family Extravaganza Raceday Sunday 7th July Open NH Flat Race (GBB Race) (Div 2) Class 5 · 16.5f · Good To Soft · 10 ran 5/10 11 11-2 —88A111A Jonjo O'Neill Jr 16/1
10 Mar 24 Warwick Olly Murphy Racing Open NH Flat Race (GBB Race) Class 5 · 16f · Soft · 12 ran 5/12 13 11-2 —66C97C Jonjo O'Neill Jr 4/1

Quick answers

How many races has Boston Boy won?
Boston Boy (GB) won 1 of 13 archived starts between 2024 and 2026, a strike rate of 7.7%. Placed 2 times in total (15.4% of starts).
Who trains Boston Boy?
Boston Boy (GB) is trained by Jonjo & A J O'Neill, who saddled the horse on its most recent run on 1 April 2026.
Who is Boston Boy's sire?
Boston Boy (GB) is by Black Sam Bellamy (IRE) out of Samrana (FR), whose sire is Tagula.
What going does Boston Boy prefer?
Boston Boy (GB) has the best record on good going: 1 win from 5 starts (20%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
What is Boston Boy's official rating?
The most recent official rating on record is 101, from the run on 1 April 2026. The highest on record is 112.
What is Boston Boy's sire's record?
Black Sam Bellamy (IRE)'s progeny in our archive have won 10.3% of 4,683 runs since Jan 2008 (466 horses), Flat and jumps together. Weakest over 1m2f – 1m4f (all codes): 5.5% from 145.
Who are Boston Boy's siblings?
Out of Samrana (FR), Boston Boy (GB) has 4 other produce in our archive, 2 of them winners. Most wins: Sammy Bill (GB) (2). Highest grade won: Class 3 (Sammy Bill (GB)). The wins came over 2m–2m4½f. As at Oct 2026.

Record shown from March 2024. 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.