Horse profile
Thunderstorm Katie (GB)
by Muhaarar (GB) out of Firenze (GB) (Efisio)
41 runs · 9 courses · from Jun 2024
As at 25 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
6 wins · 4 courses
Last run 30 Sep 2026 · 8th of 12
Last raced off OR 70
KTB Profile
Thunderstorm Katie is 6 from 41 with all wins at Class 6 level, three of them at Ayr. She has scored three times over 6f-7f and three times under 6f, with four of those wins on good ground. The mare, who is usually held up, last ran at Musselburgh in Sep 2026 when she finished 8 of 12 off her career-high mark of 70.
Based on 41 archived runs · run-style from 37 commented runs since Aug 2024 · updated 25 Oct 2026
KTB at a glance
Typically held up
All wins at Class 6
OR at career high
- 6–41Wins / Runs
- 14.6%Strike rate
- 11 (26.8%)Placed
- −2.75£1 level staken=41 at SP
- 1.24Fair A/E n=41 · 1.04 incl. margin
- 70Highest OR
- 21dAvg between runs
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 rating70At career-high mark
70
45–70
KTB Speed and Rating
KTB Speed
Best recent Speed 105
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
| Going | Runs | Best | Median | Since 25 Oct 2025 |
|---|---|---|---|---|
| Good | 13 | 110C | 103 | 7 runs · 110 / 103 |
| Standard (AW) | 8 | 101A | 87.5 | 4 runs · 101 / 96 |
| Good to Firm | 7 | 97A | 78 | 1 run · — |
| Good to Soft | 6 | 102A | 87.5 | 2 runs · 102 / 100.5 |
| Soft | 5 | 91A | 74 | 2 runs · 82 / 78 |
| Heavy | 2 | 112B | 108.5 | 1 run · — |
| Distance | Runs | Best | Median | Since 25 Oct 2025 |
|---|---|---|---|---|
| 6f – 7f | 23 | 112B | 87 | 5 runs · 110 / 103 |
| Under 6f | 18 | 104A | 92 | 12 runs · 104 / 93.5 |
KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 41 figures from 41 runs · as at 8 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 37 analysed runs since Aug 2024
- Held up 24 (65%) · 3 wins
- Mid-division 7 (19%) · 2 wins
- Prominent 6 (16%) · 1 win
Pedigree intelligence
Sire
Progeny in our archive have won 11.6% of 4,791 runs since Jan 2008 (412 horses).
| Going | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Firm | 10 | 2 | 20% | +8.4 | — |
| Good to Firm | 654 | 81 | 12.4% | +0.8 | 1 from 7 |
| Good | 997 | 112 | 11.2% | −0.4 | 4 from 13 |
| Good to Soft | 522 | 52 | 10% | −1.6 | 0 from 6 |
| Soft | 658 | 64 | 9.7% | −1.9 | 0 from 5 |
| Heavy | 185 | 25 | 13.5% | +1.9 | 0 from 2 |
| Standard (AW) | 1,764 | 218 | 12.4% | +0.8 | 1 from 8 |
| Distance (all codes) | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Under 6f | 283 | 27 | 9.5% | −2.1 | 3 from 18 |
| 6f – 7f | 1,502 | 171 | 11.4% | −0.2 | 3 from 23 |
| 1m – 1m1f | 1,295 | 177 | 13.7% | +2.1 | — |
| 1m2f – 1m4f | 1,139 | 115 | 10.1% | −1.5 | — |
| 1m5f – 2m | 383 | 46 | 12% | +0.4 | — |
| 2m1f – 2m4f | 157 | 15 | 9.6% | −2 | — |
| 2m5f – 3m | 28 | 2 | 7.1% | −4.5 | — |
| Over 3m | 4 | 1 | 25% | +13.4 | — |
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
Firenze (GB) (Efisio)
10 siblings in the archive, 8 winners — best of them Harry's Bar (GB) (16 wins).
The wins came over 5f–1m4f; the highest grade won is Listed (Harry's Bar (GB)).
| Produce | Runs | Wins | Win trips | Best grade |
|---|---|---|---|---|
| Harry's Bar (GB) | 61 | 16 | 5f–7f | Listed |
| Justcallmepete (GB) | 67 | 12 | 5½f–6f | Class 2 |
| Mazzini (GB) | 30 | 6 | 6f | Class 2 |
| Green Monkey (GB) | 18 | 4 | 5f–6f | Class 3 |
| Agostino (GB) | 42 | 4 | 5f–6f | Class 5 |
| Free State (GB) | 22 | 2 | 1m2½f–1m4f | — |
| Lady Eleanor (GB) | 8 | 1 | 7f | Class 5 |
| Isola Verde (GB) | 10 | 1 | 6f | Class 5 |
| Castellina (GB) | 9 | 0 | — | — |
| Pooky (GB) | 3 | 0 | — | — |
Record by conditions
| Going | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Good | 13 | 4 | 31% | +11.75 |
| Standard (AW) | 8 | 1 | 13% | +1.00 |
| Good to Firm | 7 | 1 | 14% | −2.50 |
| Good to Soft | 6 | 0 | 0% | −6.00 |
| Soft | 5 | 0 | 0% | −5.00 |
| Heavy | 2 | 0 | 0% | −2.00 |
| Class | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Class 6 | 25 | 6 | 24% | +13.25 |
| Class 5 | 14 | 0 | 0% | −14.00 |
| Class 4 | 2 | 0 | 0% | −2.00 |
| Course | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Hamilton | 13 | 1 | 8% | −8.50 |
| Ayr | 10 | 3 | 30% | +8.75 |
| Newcastle (AW) | 7 | 1 | 14% | +2.00 |
| Musselburgh | 5 | 1 | 20% | +1.00 |
| Thirsk | 2 | 0 | 0% | −2.00 |
| Ffos Las | 1 | 0 | 0% | −1.00 |
| Wolverhampton (AW) | 1 | 0 | 0% | −1.00 |
| Lingfield | 1 | 0 | 0% | −1.00 |
| Windsor | 1 | 0 | 0% | −1.00 |
| Distance | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 6f – 7f | 23 | 3 | 13% | −4.25 |
| Under 6f | 18 | 3 | 17% | +1.50 |
| Jockey | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Amie Waugh | 12 | 2 | 17% | −2.25 |
| Lauren Young | 10 | 1 | 10% | −1.00 |
| Paul Mulrennan | 9 | 3 | 33% | +10.50 |
| Billy Garritty | 1 | 0 | 0% | −1.00 |
| Rhys Elliott | 1 | 0 | 0% | −1.00 |
| William Pyle | 1 | 0 | 0% | −1.00 |
| Shay Farmer | 1 | 0 | 0% | −1.00 |
| Billy Loughnane | 1 | 0 | 0% | −1.00 |
| Mr Eireann Cagney | 1 | 0 | 0% | −1.00 |
| Edward Greatrex | 1 | 0 | 0% | −1.00 |
| Silvestre De Sousa | 1 | 0 | 0% | −1.00 |
| William Cox | 1 | 0 | 0% | −1.00 |
| Saffie Osborne | 1 | 0 | 0% | −1.00 |
| Headgear | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| None | 40 | 6 | 15% | −1.75 |
| Tongue tie | 1 | 0 | 0% | −1.00 |
| Season | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 2026 | 14 | 1 | 7% | −5.00 |
| 2025 | 19 | 5 | 26% | +10.25 |
| 2024 | 8 | 0 | 0% | −8.00 |
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
| Date | Course | Race | Pos | Btn | Wgt | OR | Spd | KTB | Jockey | SP |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026 · 14 runs | ||||||||||
| 30 Sep 26+2d | Musselburgh | Weatherbys Stallion Book Handicap Stakes Settled at the back - crept forward inside the final furlong - stayed on to finish 8th | 8/12 | hd | 8-11 | 70 | 102A | 65A | Lauren Young | 10/1 |
| 28 Sep 26+8d | Hamilton | Phoenix Drilling Ground Investigation Handicap Stakes Held up early - shut out for pace behind leaders - rallied along far rail inside final furlong - kept moving through to take fourth close home | 4/8 | ¾ | 9-7 | 70 | 74A | 79A | Lauren Young | 7/1 |
| 20 Sep 26+3d | Hamilton | Molton Brown Luxury Fragrance Fillies' Handicap Stakes towards the back early - pushed to improve into the straight - moved right and driven with 2f left - stayed on inside the final furlong to finish fourth | 4/8 | nse | 8-12 | 68 | 105A | 76A | Lauren Young | 3/1J |
| 17 Sep 26+15d | Ayr | Brandinghub For Signs & Graphics Handicap Stakes Settled towards back through middle of track - pressed for effort with 2f left - progress into final furlong - stayed on strongly to snatch second close home | 2/20 | ½ | 9-5 | 68 | 99C | 95A | Lauren Young | 10/1 |
| 02 Sep 26+25d | Hamilton | Follow Us On X @hamiltonparkrc Fillies' Handicap Stakes Held handy early - stayed close to front pair from a furlong out then gave way near the line to finish sixth | 6/9 | ½ | 9-2 | 68 | 82A | 69A | Lauren Young | 13/2 |
| 08 Aug 26+7d | Ayr | Christmas Parties At Western House Hotel Handicap Stakes Pulling hard early - settled in the pack - pushed along with 2f left - moved through to hit the front inside the final furlong and stayed on strongly to score | 1/13 | 9-5 | 61 | 110C | 88A | Lauren Young | 8/1 | |
| 01 Aug 26+1d | Hamilton | Blitz Cleaning Commercial Cleaning Handicap Stakes Held up towards the back - never got involved - finished 9th | 9/11 | nk | 8-4 | 61 | 93A | 59A | Lauren Young | 5/1 |
| 31 Jul 26+20d | Musselburgh | Graham + Sibbald And Neilsons Handicap Stakes Held up towards the back early - urged along and made progress from 2f out - angled right approaching final furlong - kept on to the line without reaching the winner | 2/6 | ¾ | 9-10 | 61 | 104A | 80B | Billy Garritty | 11/2 |
| 11 Jul 26+37d | Hamilton | Hamilton Park Apprentice Handicap Settled towards the back - driven with a furlong to run - battled on at one speed in the closing stages | 6/8 | nse | 9-11 | 62 | 103A | 72A | Rhys Elliott | 10/3 |
| 04 Jun 26+15d | Hamilton | Morton Fraser Macroberts LLP Handicap Settled towards back early - made ground wide from 2f out to loom up into second inside final furlong - stayed on but couldn't reel in winner | 2/9 | 2¼ | 8-10 | 62 | 103A | 84A | Lauren Young | 11/2 |
| 20 May 26+5d | Ayr | Altos Tequila Handicap Settled just off the pace - asked for effort inside final 2f - found extra close home to take second - unable to peg back the winner | 2/6 | 1¼ | 8-8 | 59 | 78A | 75B | Lauren Young | 11/10F |
| 15 May 26+12d | Hamilton | Huws Gray Apprentice Handicap Stood up at the break - held towards the back but not far off - angled right and progressed steadily inside the final two furlongs - third with a furlong left then stayed on to finish second by a short head | 2/10 | nk | 9-9 | 60 | 91A | 89A | William Pyle | 5/1 |
| 03 May 26+103d | Hamilton | Hampton By Hilton Hotel Hamilton Park Handicap Settled mid-pack early - pushed along with 2f left - boxed in turning for home - stayed on well to finish 7th beaten 2.5 lengths | 7/12 | ½ | 9-5 | 60 | 91A | 78A | Paul Mulrennan | 12/1 |
| 20 Jan 26+35d | Newcastle (AW) | Make The Move To Midnite Handicap Settled in the pack early - pushed along with two furlongs left - lost ground inside the final furlong to finish ninth | 9/11 | nse | 8-7 | 61 | 93A | 59A | Shay Farmer | 20/1 |
| 2025 · 19 runs | ||||||||||
| 16 Dec 25+14d | Newcastle (AW) | Midnite, Building The Future Of Betting Handicap Settled towards the back - lost touch with the pace a furlong out - dropped away in the closing stages - finished eighth | 8/13 | hd | 9-1 | 62 | 94B | 68A | Lauren Young | 9/1 |
| 02 Dec 25+36d | Newcastle (AW) | Midnite: Built For 2025 Not 2005 Handicap Held up towards the back - nudged into contention a furlong out - lost ground in the closing stages - finished sixth | 6/11 | ¾ | 8-12 | 62 | 101A | 71A | Billy Loughnane | 10/1 |
| 27 Oct 25+14d | Newcastle (AW) | Midnite Are Upping The Betting Game Handicap Towards the rear of the pack - made good progress from over 1f out - hit the head of affairs inside the final 110 yards - kept on to prevail by a head | 1/14 | 9-9 | 59 | 98B | 88A | Paul Mulrennan | 8/1 | |
| 13 Oct 25+13d | Musselburgh | Watch On Racing TV Handicap Settled towards the back through the field - progress made wide of rivals a furlong out - driven into contention inside final furlong - prevailed by a whisker | 1/14 | 9-9 | 55 | 101C | 89A | Paul Mulrennan | 5/1 | |
| 30 Sep 25+1d | Ayr | Book Your Event At Ayr Racecourse Handicap Held up early and eager in rear - moved into contention approaching final furlong - maintained effort without finding more late on - held on for fourth | 4/8 | ¾ | 9-4 | 57 | 62A | 68A | Amie Waugh | 9/2 |
| 29 Sep 25+8d | Hamilton | Sharing Angels Amateur Jockeys' Handicap Settled towards the back - pushed along with 2f left - finished well to snatch 3rd close home | 3/7 | 2 | 10-3 | 57 | 91A | 68A | Mr Eireann Cagney | 9/2 |
| 21 Sep 25+3d | Hamilton | Moira Stein Memorial Handicap Struggled for pace towards the back and driven up - found some finishing speed from beyond the final furlong - stayed on for fifth without threatening the front | 5/12 | ¾ | 9-6 | 57 | 61A | 73A | Paul Mulrennan | 6/4F |
| 18 Sep 25+15d | Ayr | Jackie And Janet Mack 65th Anniversary Handicap Towards the centre of the pack on the near rail - nudged for effort 2f out - always held in 8th | 8/18 | nk | 8-10 | 57 | 88C | 63A | Amie Waugh | 9/1 |
| 03 Sep 25+7d | Hamilton | Hampton By Hilton Hotel Handicap (Div 2) Raced with plenty of enthusiasm early - settled handy with the pack - pushed along and unable to close from over a furlong out - finished well held in 5th | 5/9 | 1¾ | 9-2 | 58 | 85A | 69A | Paul Mulrennan | 10/3F |
| 27 Aug 25+5d | Musselburgh | Hutcheon Mearns Handicap Squeezed for room at the break - settled towards the back - angled right approaching 2f out and made progress - flattened out inside the final furlong to finish 7th | 7/9 | nse | 9-1 | 52 | 86B | 65A | Paul Mulrennan | 13/8F |
| 22 Aug 25+11d | Hamilton | Martin Precision 2025 Handicap Tracked the pace - moved right and made ground approaching the last furlong - stayed on strongly to hit the front late | 1/7 | 9-2 | 52 | 87A | 76A | Paul Mulrennan | 7/2 | |
| 11 Aug 25+2d | Ayr | Try Racing TV For Free Now Handicap Checked and eased right early - travelled with eagerness towards the rear - found progress blocked and moved left approaching final 2f - still hunting a gap inside the last furlong before finding one but unable to press on much - finished 4th beaten 3.75 lengths | 4/9 | 2¼ | 9-2 | 48 | 108A | 76A | Amie Waugh | 5/2 |
| 09 Aug 25+12d | Ayr | Paul's 50th Celebration Handicap Settled midfield early - made progress into contention approaching final 2f - eased to front inside final furlong under pressure - held rally to score | 1/8 | 8-8 | 48 | 87A | 71A | Amie Waugh | 9/4F | |
| 28 Jul 25+7d | Ayr | Smirnoff Miami Peach Handicap Settled at back of field - closed strongly from inside final furlong then edged in front close home - driven out to the finish | 1/7 | 8-6 | 45 | 105A | 68A | Amie Waugh | 11/2 | |
| 21 Jul 25+45d | Ayr | Dream Weddings At Western House Hotel Handicap Held up towards the back - pushed along with a furlong left - stayed on through the closing stages but short of the front group | 4/12 | 1¼ | 8-6 | 45 | 87A | 67A | Amie Waugh | 10/1 |
| 06 Jun 25+16d | Thirsk | Saddle Room Deliciously Casual Cafe Dining Handicap Settled around midfield - squeezed for space with under 2f left - no threat to the front runners late - finished 8th | 8/12 | ¾ | 8-1 | 45 | 104A | 56A | Amie Waugh | 40/1 |
| 21 May 25+5d | Ayr | Racing TV Handicap Slow to break - fought for a strong grip early - settled towards the back - pushed along inside final furlong to close well and finish 5th beaten 3 lengths | 5/9 | nk | 8-6 | 45 | 97A | 66A | Amie Waugh | 22/1 |
| 16 May 25+134d | Hamilton | Patersons Of Greenoakhill Handicap Took strong hold in second place - pushed along and dropped a place over 1f out - drifted right and faded inside the final furlong to finish 4th | 4/6 | 3 | 8-11 | 45 | 84A | 54B | Amie Waugh | 16/1 |
| 02 Jan 25+12d | Newcastle (AW) | 30 In Free Bets With BetUK Handicap (Div 1) Held a midpack spot early - asked for effort with 2f left then drifted right entering the last furlong - finished without further gain in 7th | 7/9 | 2½ | 8-4 | 46 | 62A | 52A | Amie Waugh | 28/1 |
| 2024 · 8 runs | ||||||||||
| 21 Dec 24+45d | Newcastle (AW) | Gamble Responsibly At BetMGM Handicap Settled towards the back - moved left and made progress with 2f left - lost ground from the final furlong and a half - finished 7th | 7/11 | 2 | 9-4 | 47 | 71A | 52A | Paul Mulrennan | 5/1 |
| 06 Nov 24+9d | Musselburgh | Visit racingtv.com Handicap Settled towards the back of the field - lost touch with the pack two furlongs out - no impression thereafter - finished seventh | 7/9 | 1¼ | 8-3 | 48 | 77A | 44A | Amie Waugh | 25/1 |
| 28 Oct 24+59d | Newcastle (AW) | 30 In Free Bets With BetUK Handicap Hampered at the break - driven at the back of the field - stayed on turning into the final furlong - urged inside the last - kept on strongly but couldn't get to the front-runners | 4/12 | hd | 9-2 | 48 | 80A | 64A | Amie Waugh | 28/1 |
| 30 Aug 24+16d | Thirsk | Anderson Barrowcliff Chartered Accountants Classified Stakes (Div 2) Settled at the back early - pushed for effort by 2f and dropping away - well behind and beaten a long way at the finish | 9/9 | 6 | 9-6 | 50 | 35C | 24C | Paul Mulrennan | 18/1 |
| 14 Aug 24+22d | Ffos Las | Prostate Cymru Morgan Laroche Maiden Fillies' Stakes (GBB Race) Sat close to the front group early - urged forward with 2f left and driven out approaching the final furlong - stayed on at an even effort to finish fourth | 4/7 | 1½ | 9-2 | 50 | 112B | 68A | Edward Greatrex | 200/1 |
| 23 Jul 24+31d | Wolverhampton (AW) | Get Raceday Ready Fillies' Restricted Novice Stakes (GBB Race) | 7/7 | nk | 9-0 | — | 82A | 48A | Silvestre De Sousa | 125/1 |
| 22 Jun 24+19d | Lingfield | King Roofing Services Restricted Maiden Fillies' Stakes (GBB Race) | 4/5 | 5 | 9-0 | — | 62C | 49B | William Cox | 66/1 |
| 03 Jun 24 | Windsor | Download The Fitzdares App Now Fillies' Novice Stakes (GBB Race) | 10/11 | 10 | 9-2 | — | 77C | 42C | Saffie Osborne | 125/1 |
Quick answers
- How many races has Thunderstorm Katie won?
- Thunderstorm Katie (GB) won 6 of 41 archived starts between 2024 and 2026, a strike rate of 14.6%. Placed 11 times in total (26.8% of starts).
- Who trains Thunderstorm Katie?
- Thunderstorm Katie (GB) is trained by Jim Goldie, who saddled the horse on its most recent run on 30 September 2026.
- Who is Thunderstorm Katie's sire?
- Thunderstorm Katie (GB) is by Muhaarar (GB) out of Firenze (GB), whose sire is Efisio.
- What going does Thunderstorm Katie prefer?
- Thunderstorm Katie (GB) has the best record on good going: 4 wins from 13 starts (30.8%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
- What is Thunderstorm Katie's official rating?
- The most recent official rating on record is 70, from the run on 30 September 2026. That is also the highest on record.
- What is Thunderstorm Katie's sire's record?
- Muhaarar (GB)'s progeny in our archive have won 11.6% of 4,791 runs since Jan 2008 (412 horses), Flat and jumps together.
- Who are Thunderstorm Katie's siblings?
- Out of Firenze (GB), Thunderstorm Katie (GB) has 10 other produce in our archive, 8 of them winners. Most wins: Harry's Bar (GB) (16). Highest grade won: Listed (Harry's Bar (GB)). The wins came over 5f–1m4f. As at Oct 2026.