As at 18 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
4 wins · 4 coursesRan 56 days ago · 5th of 17Last raced off OR 105
KTB Profile
Limestone won four of eight starts on turf, all on a first visit to the course. His biggest success came in the Group 2 Queen’s Vase at Ascot in Jun 2026 over 1m5f – 2m on good to firm when rated 102. He also landed a Listed race at Navan in May 2026 and two handicaps, one at Cork over 1m2f – 1m4f on good to soft and one at Listowel over 1m – 1m1f on heavy. The colt last ran fifth of 17 in the Class 2 Sky Bet Melrose Handicap Stakes at York in Aug 2026 off an official rating of 105.
Based on 8 archived runs · run-style from 2 commented runs · updated 18 Oct 2026
A/E compares actual wins with what starting prices implied. "Fair" strips the bookmaker margin from the expectation, so favourites and longshots are judged on the same footing — figures near 1.00 mean the market priced this horse about right.
Official rating105At career-high mark
10598–105
KTB Speed and Rating
KTB Speed
Best recent Speed117the best of the last 3 graded (A or B) runs · Tipperary, 31 Aug 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 →
Flat 7 figures · best 117A · median 92
Going
Runs
Best
Median
Since 18 Oct 2025
Good to Soft
3
117A
85
2 · 85 / 71
Soft
2
92C
82.5
1 · —
Good to Firm
1
—
—
1 · —
Heavy
1
—
—
—
Distance
Runs
Best
Median
Since 18 Oct 2025
1m5f – 2m
3
94A
92
3 · 94 / 92
1m – 1m1f
3
117A
104
—
1m2f – 1m4f
1
—
—
1 · —
KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 7 figures from 7 runs · as at 3 Oct 2026 · a record, not a forecast
KTB Rating
Best recent KTB Rating101Athe best of the last 3 rated runs · York, 22 Aug 2026Official rating 105at the last run, 22 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 7 figures · best 106B · median 95
Going
Runs
Best
Median
Since 18 Oct 2025
Good to Soft
3
101A
98
2 · 101 / 98
Soft
2
91B
90
1 · —
Good to Firm
1
—
—
1 · —
Heavy
1
—
—
—
Distance
Runs
Best
Median
Since 18 Oct 2025
1m5f – 2m
3
101A
95
3 · 101 / 95
1m – 1m1f
3
106B
98
—
1m2f – 1m4f
1
—
—
1 · —
KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 7 figures from 7 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.
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.
Sky Bet Melrose Handicap Stakes (Heritage Handicap) (GBBPlus Race)Class 2 · 14f · Good To Soft · 17 ranSettled in the pack - made progress into contention approaching 3f out under early urging - blocked briefly around 2f out while trying to reach the front pair - moved up to second a furlong out under pressure - dropped away close home to finish fifth
Queen's Vase (Group 2)Class 1 · 14f · Good To Firm · 11 ranWent straight to front - lost the advantage soon after start - pushed along to close on the front pack with 2f remaining - responded gamely inside the last furlong holding off the second all the way to the line - got up right on the wire
Irish Stallion Farms EBF Yeats Stakes (Listed)13f · Yielding · 5 ranMade the running early - lost the advantage and slipped back to third by halfway - still 4th entering the straight - shifted across and asked for effort with 2f left - up to 3rd 1 1/2f out - into second and driven approaching the furlong pole - hit the front 150 yards out and stayed on strongly to score
Dine In Our Panoramic Restaurant Race10.5f · Good To Yielding · 4 ranSet the pace early - headed 4f out then regained front 2f out under pressure - challenged close home with a furlong left but stayed on strongly to prevail
MAC Hardware & Farm Supplies Irish EBF Rated Race8f · Heavy · 5 ranShared the front spot early - went clear into command with 2 1/2f left - pushed along over a furlong out and challenged hard late - responded gamely to the drive to prevail
Camas Park Irish EBF Maiden9f · Good To Yielding · 12 ranUp with the front group - nudged forward from 2f out and momentarily checked for space - moved through to hit the front over 1f out - collared inside the final 150yds and had nothing left to give
Irish Stallion Farms EBF Maiden8f · Yielding To Soft · 8 ranRaced with plenty of enthusiasm early on - settled among the pack - looked for space approaching 3f out - made progress inside the final furlong and stayed on under pressure to finish third
Limestone (IRE) won 4 of 8 archived starts between 2025 and 2026, a strike rate of 50%. Placed 6 times in total (75% of starts).
Who trains Limestone (IRE)?
Limestone (IRE) is trained by Joseph Patrick O'Brien, who saddled the horse on its most recent run on 22 August 2026.
Who is Limestone (IRE)'s sire?
Limestone (IRE) is by New Bay (GB) out of Modernstone (GB), whose sire is Duke Of Marmalade.
What going does Limestone (IRE) prefer?
Limestone (IRE) has the best record on good to soft going: 1 win from 4 starts (25%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
What is Limestone (IRE)'s official rating?
The most recent official rating on record is 105, from the run on 22 August 2026. That is also the highest on record.
What is Limestone (IRE)'s sire's record?
New Bay (GB)'s progeny in our archive have won 14.4% of 3,928 runs since Jan 2008 (419 horses), Flat and jumps together. Weakest at trips under 6f (all codes): 10.8% from 102.
Who are Limestone (IRE)'s siblings?
Out of Modernstone (GB), Limestone (IRE) has 2 other produce in our archive, 2 of them winners. Most wins: Lone Eagle (IRE) (4). Highest grade won: Group 3 (Lone Eagle (IRE)). The wins came over 1m–1m3f. As at Oct 2026.
Limestone (IRE)·4–8·SR 50%
KTB
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