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Horse profile

Mercurial Sea (IRE)

5yo mare · Trainer Nigel Thomas Slevin · Owner Judith Long
by Affinisea (IRE) out of Cloudante (IRE) (Cloudings)
15 runs · 11 courses · from Feb 2025
As at 8 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
Beaten favourite LTO Last run 18 Sep 2026 · 5th of 12 Last raced off OR 93
KTB Profile

Mercurial Sea (IRE) is yet to win from 15 starts, though has placed 4 times. Best effort: 2nd of 11 at Downpatrick (IRE) (Jul 2026).

Based on 15 archived runs · run-style from 15 commented runs since Feb 2025 · updated 8 Nov 2026
Official rating93↓ 1lb off peak
93 88–94

KTB Speed and Rating

KTB Speed

Best recent Speed 109 the best of the last 3 graded (A or B) runs · Downpatrick, 22 May 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 →

Jumps 11 figures · best 133B · median 96
GoingRunsBestMedianSince 8 Nov 2025
Good7133B1025 runs · 133 / 103
Soft270A681 run · —
Good to Soft1——1 run · —
Heavy1——1 run · —
DistanceRunsBestMedianSince 8 Nov 2025
2m1f – 2m4f7133B1025 runs · 133 / 103
2m5f – 3m2109B93.52 runs · 109 / 93.5
1m5f – 2m270A681 run · —

Of 15 runs looked at, 4 have no figure: not enough races on the card to set the day (under 4) (2) · did not complete (1) · obstacles omitted — the race ran a shortened course (1).

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 11 figures from 15 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating (jumps) 109A the best of the last 3 rated runs · Downpatrick (IRE), 14 Jul 2026 Official rating 93 at the last jumps run, 18 Sep 2026

Best recent KTB Rating (flat) 62C the best of the last 2 rated runs · Cork, 11 Jul 2025

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 — its best recent day. The KTB Rating on a racecard is a different reading of the same figures: the level the horse has been running to, an average of up to its last six runs with the latest counting most, so the two can differ. A, B or C on a run is how much known form was in that race. What this means →

Jumps 11 figures · best 109A · median 90
GoingRunsBestMedianSince 8 Nov 2025
Good7109A985 runs · 109 / 98
Soft280A791 run · —
Good to Soft1——1 run · —
Heavy1——1 run · —
DistanceRunsBestMedianSince 8 Nov 2025
2m1f – 2m4f7109A985 runs · 109 / 98
2m5f – 3m294A902 runs · 94 / 90
1m5f – 2m280A791 run · —
Flat 2 figures · best 62C · median 60.5
GoingRunsBestMedianSince 8 Nov 2025
Good to Soft1———
Good1———
DistanceRunsBestMedianSince 8 Nov 2025
1m5f – 2m1———
2m1f – 2m4f1———

Of 15 runs looked at, 2 have no figure: did not complete (or a non-runner row) (2).

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 13 figures from 15 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 15 analysed runs since Feb 2025

  • Prominent 5 (33%) · 0 wins
  • Led 5 (33%) · 0 wins
  • Held up 4 (27%) · 0 wins
  • Mid-division 1 (7%) · 0 wins

Pedigree intelligence

Sire

Progeny in our archive have won 13.3% of 1,295 runs since Feb 2022 (206 horses).

GoingRunsWinsSRvs sireThis horse
Good to Firm8225%+11.7—
Good4676012.8%−0.50 from 8
Good to Soft3354613.7%+0.40 from 2
Soft3474713.5%+0.20 from 3
Heavy1361712.5%−0.80 from 2
Standard (AW)200%−13.3—
Distance (all codes)RunsWinsSRvs sireThis horse
1m2f – 1m4f8225%+11.7—
1m5f – 2m4815511.4%−1.90 from 4
2m1f – 2m4f5587713.8%+0.50 from 9
2m5f – 3m2133215%+1.70 from 2
Over 3m35617.1%+3.8—

Flat and jumps together (all codes) · since Feb 2022 · as at 8 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Cloudante (IRE) (Cloudings)

1 sibling in the archive, 0 winners.

ProduceRunsWinsWin tripsBest grade
Million Percent (IRE)40——

Record by conditions

GoingRunsWinsSR£1
Good 8 0 0% −8.00
Soft 3 0 0% −3.00
Good to Soft 2 0 0% −2.00
Heavy 2 0 0% −2.00

CourseRunsWinsSR£1
Fairyhouse 3 0 0% −3.00
Downpatrick (IRE) 2 0 0% −2.00
Downpatrick 2 0 0% −2.00
Tramore (IRE) 1 0 0% −1.00
Down Royal 1 0 0% −1.00
Navan 1 0 0% −1.00
Galway 1 0 0% −1.00
Cork 1 0 0% −1.00
Sligo 1 0 0% −1.00
Limerick 1 0 0% −1.00
Leopardstown 1 0 0% −1.00

DistanceRunsWinsSR£1
2m1f – 2m4f 9 0 0% −9.00
1m5f – 2m 4 0 0% −4.00
2m5f – 3m 2 0 0% −2.00

JockeyRunsWinsSR£1
Carl Millar 5 0 0% −5.00
Paddy Cleary 4 0 0% −4.00
Finn Brickley 2 0 0% −2.00
Mr J M Halford 2 0 0% −2.00
Miss J Townend 1 0 0% −1.00
John Shinnick 1 0 0% −1.00

HeadgearRunsWinsSR£1
None 12 0 0% −12.00
Hood 3 0 0% −3.00

SeasonRunsWinsSR£1
2026 7 0 0% −7.00
2025 8 0 0% −8.00

TypeRunsWinsSR£1
Hurdle 10 0 0% −10.00
Flat 2 0 0% −2.00
NH Flat 2 0 0% −2.00
Chase 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
2026 · 7 runs
18 Sep 26+35d Downpatrick (IRE) MB McGrady And Co Chartered Accountants Handicap Hurdle (Div I) 2m2f · Good · 12 ran Tracked pace-setter early - lost ground with small error four out - dropped to fourth under pressure then weakened into fifth before the last 5/12 2½ 11-2 93103A98A Carl Millar 11/4F
14 Aug 26+31d Tramore (IRE) I.P.R.S. Handicap Steeplechase 2m6f · Good · 13 ran Held up towards the back - poor leap at the opening fence - lost touch with the field soon after - well behind from before the 11th and finished a distant last 8/13 5½ 11-5 9478C86C Carl Millar 14/1
14 Jul 26+53d Downpatrick (IRE) ITBA Mares Maiden Hurdle 2m2f · Good · 11 ran Racing in 2nd early - in front before the last - caught at the last - passed soon after but kept on when driven 2/11 6½ 11-0 88102A109A Paddy Cleary 7/1
22 May 26+14d Downpatrick Frank And Brian Fitzsimons Memorial Handicap Hurdle (0-100) 2m6f · Good To Yielding · 15 ran Settled midpack early - up to 5th at halfway - 3rd with four to go - driven approaching two out but made no headway - held no finishing kick and beaten well into 8th 8/15 nk 10-11 89109B94A Paddy Cleary 7/1
08 May 26+26d Downpatrick Angie Orr Still Celebrating Her 70th Birthday Mares Handicap Hurdle 2m2f · Good · 12 ran Set the gallop early - urged forward approaching 2 out and hard-driven with a rival closing hard by the last - lost the advantage inside the final furlong and a half - had nothing more to give but held the effort to the line 2/12 5 9-11 88108A105A Paddy Cleary 11/1
12 Apr 26+22d Down Royal Carsena Bloodstock Mares Maiden Hurdle 2m4f · Good · 15 ran Set the pace early - sat second through halfway before dropping away 3 out - down to 6th and unable to find more approaching the last 6/15 4 10-8 90133B85A Carl Millar 12/1
21 Mar 26+98d Navan Wilkinson Jewellers Of Navan Mares Handicap Hurdle 2m · Soft · 12 ran Held up at the back throughout and out of contention 8/12 2½ 9-7 9366A80A Paddy Cleary 80/1
2025 · 8 runs
13 Dec 25+22d Fairyhouse William Hill Each Way Extra Challenge Series Handicap Hurdle (0-100) (Div 1) 2m4f · Soft · 18 ran Sent clear early - driven up front before losing spot 3 out and quickly emptied - dropped away and eased before the final fence PU/18 — 11-3 94—— Finn Brickley 66/1
21 Nov 25+74d Fairyhouse Sign Up To GavinLynchRacing.com Mares Maiden Hurdle 2m4½f · Heavy · 16 ran Held up rear from the off - no impact on the contest - well beaten in 12th 12/16 30 10-7 —30C85C Carl Millar 50/1
08 Sep 25+59d Galway Kenny Developments Irish EBF Mares Flat Race 2m½f · Good To Yielding · 17 ran Shared front spot early - dropped to second after 4f and slipped back approaching 3f out - under pressure in 5th inside final 2f - held on without finding more close home finishing 5th 5/17 ½ 11-2 ——59C Mr J M Halford 18/1
11 Jul 25+31d Cork Racing Again July 25th Fillies Flat Race 2m1f · Good · 16 ran Handy early - third at halfway - dropped away inside final two furlongs and held late 8/16 3¾ 11-5 ——62C Miss J Townend 10/1
10 Jun 25+70d Sligo Irish Stallion Farms EBF Mares (Pro/Am) Flat Race 2m2½f · Good · 15 ran Set the early gallop and opened a three length advantage by halfway - driven up front before being overtaken a furlong out - urged again but unable to match the winner's finish - moved into third inside the final 100 yards and stayed on at the same speed 3/15 ½ 10-13 —85B109A Mr J M Halford 40/1
01 Apr 25+30d Limerick Limerick Maiden Hurdle 2m1f · Good · 16 ran Sat behind the front group early - up to 3rd but unable to make headway before 2 out - stayed on one speed to finish third 3/16 21 10-9 —96B90A John Shinnick 100/1
02 Mar 25+25d Leopardstown QuinnBet (Pro/Am) Flat Race 2m · Yielding · 9 ran Tracked the pace early - third at halfway then edged closer turning in - dropped away fast inside the last two furlongs to finish well back 8/9 3¼ 10-3 —70A78A Finn Brickley 50/1
05 Feb 25 Fairyhouse Book Your Fairyhouse Hospitality Maiden Hurdle 2m · Heavy · 13 ran Settled towards the back of the pack early - hit the fourth with an awkward jump - up to 8th by halfway - clipped one three out then driven but unable to close - came down at the final fence F/13 — 10-9 ——— Carl Millar 125/1

Quick answers

How many races has Mercurial Sea won?
Mercurial Sea (IRE) has yet to win, from 15 archived starts between 2025 and 2026. Placed 4 times in total (26.7% of starts).
Who trains Mercurial Sea?
Mercurial Sea (IRE) is trained by Nigel Thomas Slevin, who saddled the horse on its most recent run on 18 September 2026.
Who is Mercurial Sea's sire?
Mercurial Sea (IRE) is by Affinisea (IRE) out of Cloudante (IRE), whose sire is Cloudings.
What is Mercurial Sea's official rating?
The most recent official rating on record is 93, from the run on 18 September 2026. The highest on record is 94.
What is Mercurial Sea's sire's record?
Affinisea (IRE)'s progeny in our archive have won 13.3% of 1,295 runs since Feb 2022 (206 horses), Flat and jumps together.
Who are Mercurial Sea's siblings?
Out of Cloudante (IRE), Mercurial Sea (IRE) has 1 other produce in our archive, 0 of them winners. As at Nov 2026.

Record shown from February 2025. Our archive holds racing in Great Britain, Ireland and France from January 2005. Any runs before that, or in other countries, are not in it. In-running comments are available from 2024 onward.