Maximum Effect (GB)
Maximum Effect (GB) is 1 from 8, the win coming at Class 5 level. Hasn't won since Oct 2019. Last raced off a career-high mark of 80.
Progeny in our archive
As a dam, Maximum Effect (GB) has 1 produce in the archive, 1 winner — most wins Stage Effect (GB) (1 win).
The wins came over 6f; the highest grade won is Class 3 (Stage Effect (GB)).
| Produce | Runs | Wins | Win trips | Best grade |
|---|---|---|---|---|
| Stage Effect (GB) | 5 | 1 | 6f | Class 3 |
- 1–8Wins / Runs
- 12.5%Strike rate
- 6 (75%)Placed
- −4.50£1 level staken=8 at SP
- 0.51Fair A/E n=8 · 0.42 incl. margin
- 80Highest OR
- 62dAvg 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.
KTB Speed and Rating
Best recent Speed 94
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 →
| Going | Runs | Best | Median | Since 21 Oct 2025 |
|---|---|---|---|---|
| Standard (AW) | 8 | 100A | 85 | — |
| Distance | Runs | Best | Median | Since 21 Oct 2025 |
|---|---|---|---|---|
| 1m2f – 1m4f | 5 | 94A | 87 | — |
| 1m – 1m1f | 2 | 100A | 88.5 | — |
| 6f – 7f | 1 | — | — | — |
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
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 is derived from in-running commentary, which our data provider does not supply for this horse's races.
Pedigree intelligence
Progeny in our archive have won 10.6% of 13,951 runs since Jan 2008 (1,089 horses).
Weakest on heavy going: 7.6% from 489.
| Going | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Firm | 65 | 8 | 12.3% | +1.7 | — |
| Good to Firm | 2,199 | 253 | 11.5% | +0.9 | — |
| Good | 2,976 | 294 | 9.9% | −0.7 | — |
| Good to Soft | 1,464 | 158 | 10.8% | +0.2 | — |
| Soft | 1,739 | 140 | 8.1% | −2.5 | — |
| Heavy | 489 | 37 | 7.6% | −3 | — |
| Standard (AW) | 5,018 | 582 | 11.6% | +1 | 1 from 8 |
| Distance (all codes) | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Under 6f | 843 | 105 | 12.5% | +1.9 | — |
| 6f – 7f | 5,025 | 546 | 10.9% | +0.3 | 0 from 1 |
| 1m – 1m1f | 3,813 | 411 | 10.8% | +0.2 | 0 from 2 |
| 1m2f – 1m4f | 2,605 | 246 | 9.4% | −1.2 | 1 from 5 |
| 1m5f – 2m | 1,127 | 115 | 10.2% | −0.4 | — |
| 2m1f – 2m4f | 395 | 36 | 9.1% | −1.5 | — |
| 2m5f – 3m | 123 | 11 | 8.9% | −1.7 | — |
| Over 3m | 20 | 2 | 10% | −0.6 | — |
Flat and jumps together (all codes) · since Jan 2008 · as at 21 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast
6 siblings in the archive, 4 winners — best of them Kachy (GB) (9 wins).
The wins came over 5f–1m2f; the highest grade won is Group 3 (Kachy (GB)).
| Produce | Runs | Wins | Win trips | Best grade |
|---|---|---|---|---|
| Kachy (GB) | 28 | 9 | 5f–6f | Group 3 |
| Gifted Ruler (GB) | 17 | 2 | 6f–1m1f | Class 4 |
| Bakersboy (GB) | 42 | 2 | 1m1½f–1m2f | Class 5 |
| Clarko's Back (GB) | 6 | 1 | 1m | Class 6 |
| Tahiti (GB) | 1 | 0 | — | — |
| Mickey Free (GB) | 1 | 0 | — | — |
Record by conditions
| Class | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Class 4 | 5 | 0 | 0% | −5.00 |
| Class 5 | 3 | 1 | 33% | +0.50 |
| Course | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Chelmsford City (AW) | 3 | 0 | 0% | −3.00 |
| Lingfield (AW) | 2 | 0 | 0% | −2.00 |
| Kempton (AW) | 2 | 1 | 50% | +1.50 |
| Wolverhampton (AW) | 1 | 0 | 0% | −1.00 |
| Distance | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 1m2f – 1m4f | 5 | 1 | 20% | −1.50 |
| 1m – 1m1f | 2 | 0 | 0% | −2.00 |
| 6f – 7f | 1 | 0 | 0% | −1.00 |
| Jockey | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Robert Havlin | 3 | 0 | 0% | −3.00 |
| Nicky Mackay | 2 | 1 | 50% | +1.50 |
| Oisin Murphy | 1 | 0 | 0% | −1.00 |
| Kieran O'Neill | 1 | 0 | 0% | −1.00 |
| Frankie Dettori | 1 | 0 | 0% | −1.00 |
| Season | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 2020 | 1 | 0 | 0% | −1.00 |
| 2019 | 6 | 1 | 17% | −2.50 |
| 2018 | 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
| Date | Course | Race | Pos | Btn | Wgt | OR | Spd | KTB | Jockey | SP |
|---|---|---|---|---|---|---|---|---|---|---|
| 25 Feb 20+98d | Lingfield (AW) | Betway Handicap | 2/7 | 1½ | 9-5 | 80 | 83B | 85A | Oisin Murphy | 9/4F |
| 19 Nov 19+15d | Chelmsford City (AW) | Celebrate November's Hero Richard Shepherd Handicap | 14/14 | 2 | 9-7 | 80 | 87B | 60A | Nicky Mackay | 9/2 |
| 04 Nov 19+26d | Kempton (AW) | Matchbook Time To Move Over Fillies' Handicap | 2/11 | hd | 9-7 | 79 | 94A | 90A | Robert Havlin | 9/4F |
| 09 Oct 19+34d | Kempton (AW) | Close Brothers Business Finance Maiden Fillies' Stakes | 1/11 | 9-0 | 77 | 74A | 86A | Nicky Mackay | 5/2 | |
| 05 Sep 19+20d | Chelmsford City (AW) | Bet Totetrifecta At Totesport.com Handicap | 3/5 | 1½ | 9-6 | 77 | 93C | 84B | Kieran O'Neill | 3/1 |
| 16 Aug 19+24d | Wolverhampton (AW) | Follow On Facebook At britishracingclub Fillies' Novice Stakes | 2/9 | 3 | 8-11 | — | 77A | 77A | Robert Havlin | 6/5F |
| 23 Jul 19+216d | Chelmsford City (AW) | Budweiser Brewing Group Novice Stakes (Div 2) | 2/10 | 1¼ | 8-11 | — | 100A | 86A | Frankie Dettori | 6/4 |
| 19 Dec 18 | Lingfield (AW) | EBF/Ladbrokes Fillies' Novice Stakes (Plus 10) (Div 1) | 3/12 | 1¼ | 8-12 | — | 82A | 81A | Robert Havlin | 4/1 |
Quick answers
- How many races has Maximum Effect (GB) won?
- Maximum Effect (GB) won 1 of 8 archived starts between 2018 and 2020, a strike rate of 12.5%. Placed 6 times in total (75% of starts).
- Who trained Maximum Effect (GB)?
- Maximum Effect (GB) was trained by John Gosden on the most recent run on record, at Lingfield (AW) on 25 February 2020.
- Who is Maximum Effect (GB)'s sire?
- Maximum Effect (GB) is by Iffraaj (GB) out of Dubai Bounty (GB), whose sire is Dubai Destination.
- What is Maximum Effect (GB)'s official rating?
- The most recent official rating on record is 80, from the run on 25 February 2020. That is also the highest on record.
- What is Maximum Effect (GB)'s sire's record?
- Iffraaj (GB)'s progeny in our archive have won 10.6% of 13,951 runs since Jan 2008 (1,089 horses), Flat and jumps together. Weakest on heavy going: 7.6% from 489.
- Who are Maximum Effect (GB)'s siblings?
- Out of Dubai Bounty (GB), Maximum Effect (GB) has 6 other produce in our archive, 4 of them winners. Most wins: Kachy (GB) (9). Highest grade won: Group 3 (Kachy (GB)). The wins came over 5f–1m2f. As at Oct 2026.
- Has Maximum Effect (GB) produced winners?
- As a dam, Maximum Effect (GB) has 1 produce in our archive, 1 of them a winner. Most wins: Stage Effect (GB) (1). Highest grade won: Class 3 (Stage Effect (GB)). The wins came over 6f. As at Oct 2026.