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 rating81↓ 1lb off peak
8174–82
KTB Speed and Rating
KTB Speed
Best recent Speed100the best of the last 3 graded (A or B) runs · Kempton (AW), 23 Sep 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 →
Flat 12 figures · best 109C · median 85.5
Going
Runs
Best
Median
Since 18 Oct 2025
Good to Firm
3
109C
84
—
Standard (AW)
2
100B
99
2 · 100 / 99
Good to Soft
2
97C
79.5
1 · —
Heavy
2
88C
86.5
1 · —
Good
2
86C
74.5
—
Soft
1
—
—
—
Distance
Runs
Best
Median
Since 18 Oct 2025
6f – 7f
10
109C
85.5
3 · 100 / 98
1m – 1m1f
1
—
—
1 · —
Under 6f
1
—
—
—
KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 12 figures from 12 runs · as at 3 Oct 2026 · a record, not a forecast
KTB Rating
Best recent KTB Rating90Athe best of the last 3 rated runs · Kempton (AW), 6 May 2026Official rating 81at the last run, 23 Sep 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 12 figures · best 104A · median 82
Going
Runs
Best
Median
Since 18 Oct 2025
Good to Firm
3
84A
80
—
Standard (AW)
2
90A
88.5
2 · 90 / 88.5
Good to Soft
2
76A
68.5
1 · —
Heavy
2
104A
96
1 · —
Good
2
80A
79.5
—
Soft
1
—
—
—
Distance
Runs
Best
Median
Since 18 Oct 2025
6f – 7f
10
104A
84
3 · 104 / 90
1m – 1m1f
1
—
—
1 · —
Under 6f
1
—
—
—
KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 12 figures from 12 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.
Try Unibet's New Improved Acca Boosts Handicap StakesClass 4 · 7f · Standard / Slow · 13 ranHeld up towards back - moved into contention approaching final furlong - pushed along and stayed on same speed to line - finished 4th beaten 4 1/4 lengths
Try Unibet's New Improved Acca Boosts HandicapClass 4 · 7f · Standard To Slow · 14 ranSettled in the pack - pushed along and made progress over 2f out - stayed on inside the final furlong to finish 4th
William Hill Epic Boosts Spring Mile Handicap (Str)Class 2 · 8f · Good To Soft · 22 ranFought for control early - up with the pace and went in front over 2f out - pressed for effort and lost the advantage inside the final furlong - unable to find more and well held late
Reg Bond 'Always And Forever' HandicapClass 4 · 7f · Good · 22 ranSettled with the pack early - pushed along a furlong out - bumped in the closing stages - well held at the finish
debenhams.com Handicap (Div 1)Class 4 · 7f · Good · 9 ranEdgy pre-off - settled towards the back through middle of track - held around midfield turning in and unable to find extra late
CU Lifestyle Club NurseryClass 4 · 6f · Heavy · 8 ranSettled at back early - made smooth progress from 2f out - hit front inside final furlong - kept up the pace to the line
British EBF 100,000 Final (Colts And Geldings)Class 2 · 7f · Soft · 14 ranHeld up towards the back - improved into contention approaching final furlong - stayed on without threatening to land a blow - finished 5th beaten 3.75 lengths
Juddmonte EBF Restricted Novice Stakes (GBB Race)Class 4 · 6f · Good To Firm · 17 ranSettled midpack towards the outer flank early - urged forward approaching 2f out - made progress inside the final furlong - improved to third close home but lacked the speed to press for victory - finished 3rd beaten 3 lengths
Prosperitas (IRE) won 2 of 12 archived starts between 2024 and 2026, a strike rate of 16.7%. Placed 4 times in total (33.3% of starts).
Who trains Prosperitas (IRE)?
Prosperitas (IRE) is trained by T. J. Kent, who saddled the horse on its most recent run on 23 September 2026.
Who is Prosperitas (IRE)'s sire?
Prosperitas (IRE) is by No Nay Never (USA) out of Castle Cross (IRE), whose sire is Cape Cross.
What is Prosperitas (IRE)'s official rating?
The most recent official rating on record is 81, from the run on 23 September 2026. The highest on record is 82.
What is Prosperitas (IRE)'s sire's record?
No Nay Never (USA)'s progeny in our archive have won 12.1% of 6,297 runs since Jan 2008 (703 horses), Flat and jumps together. Weakest on good to soft going: 9% from 609. Weakest over 1m5f – 2m (all codes): 7.6% from 184.
Who are Prosperitas (IRE)'s siblings?
Out of Castle Cross (IRE), Prosperitas (IRE) has 4 other produce in our archive, 3 of them winners. Most wins: African Sun (IRE) (1). Highest grade won: Class 4 (Meaningful Dragon (IRE)). The wins came over 6f–2m. As at Oct 2026.
Prosperitas (IRE)·2–12·SR 16.7%
KTB
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