4yo gelding · Trainer Harry Derham· Owner Dd Armstrong And Mcneill Family
by Siyouni (FR) out of Kosmische (IRE) (Fastnet Rock)
13 runs · 10 courses · from Apr 2025
As at 1 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
Won at CatterickLast run 17 Apr 2026 · 5th of 15Last raced off OR 105
KTB Profile
Belaya River won the Racing To School Juvenile Maiden Hurdle at Catterick in Jan 2026 on soft ground. The gelding is one from 13 overall with five places and has raced at ten different courses. All his wins came at Class 4 level over 1m5f to 2m on turf. He finished fifth of 15 in the Slater Menswear Handicap Hurdle at Ayr in Apr 2026.
Based on 13 archived runs · run-style from 12 commented runs since Apr 2025 · updated 1 Nov 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 rating105↓ 4lb off peak
10558–109
KTB Speed and Rating
KTB Speed
Best recent Speed122the best of the last 3 graded (A or B) runs · Ayr, 17 Apr 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 6 figures · best 122B · median 104.5
Going
Runs
Best
Median
Since 1 Nov 2025
Good to Soft
3
120A
96
3 runs · 120 / 96
Soft
2
122B
117.5
2 runs · 122 / 117.5
Good
1
—
—
1 run · —
Distance
Runs
Best
Median
Since 1 Nov 2025
1m5f – 2m
5
122B
113
5 runs · 122 / 113
2m1f – 2m4f
1
—
—
1 run · —
Flat 7 figures · best 104A · median 69
Going
Runs
Best
Median
Since 1 Nov 2025
Standard (AW)
6
104A
78.5
—
Good
1
—
—
—
Distance
Runs
Best
Median
Since 1 Nov 2025
1m5f – 2m
4
104A
94
—
1m2f – 1m4f
2
69A
65
—
1m – 1m1f
1
—
—
—
KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 13 figures from 13 runs · as at 3 Oct 2026 · a record, not a forecast
KTB Rating
Best recent KTB Rating (jumps)129Bthe best of the last 3 rated runs · Kelso, 28 Feb 2026Official rating 105at the last jumps run, 17 Apr 2026
Best recent KTB Rating (flat)65Athe best of the last 3 rated runs · Newcastle (AW), 11 Sep 2025Official rating 58at the last flat run, 16 Oct 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 6 figures · best 131A · median 110
Going
Runs
Best
Median
Since 1 Nov 2025
Good to Soft
3
129B
108
3 runs · 129 / 108
Soft
2
131A
121.5
2 runs · 131 / 121.5
Good
1
—
—
1 run · —
Distance
Runs
Best
Median
Since 1 Nov 2025
1m5f – 2m
5
131A
112
5 runs · 131 / 112
2m1f – 2m4f
1
—
—
1 run · —
Flat 7 figures · best 65A · median 61
Going
Runs
Best
Median
Since 1 Nov 2025
Standard (AW)
6
65A
60.5
—
Good
1
—
—
—
Distance
Runs
Best
Median
Since 1 Nov 2025
1m5f – 2m
4
65A
61.5
—
1m2f – 1m4f
2
62A
61.5
—
1m – 1m1f
1
—
—
—
KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 13 figures from 13 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.
Slater Menswear Handicap HurdleClass 3 · 2m · Soft · 15 ranHeld up at the back - made progress after 3 out - closed on the front pack 2 out - pushed along before the last then lost ground on the run-in to finish 5th
bet365 Juvenile Hurdle (GBB Race)Class 3 · 2m · Good To Soft · 7 ranSet the pace early - clipped the 4th - found extra 2 out - pushed along after being overtaken before last then held on for second
Racing To School Juvenile Maiden Hurdle (GBB Race)Class 4 · 1m7½f · Soft · 9 ranSet the pace from the off - scratchy jump 3rd - pushed clear after 2 out - kept finding more to the line for a comfortable win
Virgin Bet Juvenile Hurdle (GBB Race)Class 4 · 1m7½f · Good To Soft · 10 ranRaced with plenty of enthusiasm early - shared the front running before giving way before 3 out - urged into contention with the front group 2 out - then found little - weakened late to finish fourth
attheraces.com/marketmovers HandicapClass 6 · 1m6f · Standard · 9 ranHeld up in the pack early - lost touch through the race - no impression made - well held at the finish
At The Races App Expert Tips HandicapClass 6 · 1m6f · Standard · 5 ranSettled at the back early - moved up approaching the home bend - made strong progress from the wide line but drifted left inside the last two furlongs - closed under pressure and level with the winner at the line
Free Bets On attheraces.com HandicapClass 6 · 2m½f · Standard · 12 ranDwelt start - held up towards back on inner - pushed along 4f out - moved through after crossing to the outside 2f out - couldn't quicken and held on for third final furlong
CCR Fireworks Spectacular HandicapClass 6 · 1m5½f · Standard · 8 ranSettled midfield in 5th early - shifted out approaching the straight - denied a clean passage a furlong out before finding room right - finished well to take third
Racing Value At bet365 Novice Stakes (GBB Race)Class 5 · 1m2f · Standard · 11 ranSettled towards the back early - pushed along inside the final furlong - made no real impact - finished eighth
Ladies Day 10th May 'Confined' Maiden Stakes (GBB Race)Class 5 · 1m2f · Good · 7 ranSluggish start - settled midpack before being niggled into 4th with 4f left - couldn't threaten leaders as ran raggedly from 2f out to finish 4th
Belaya River (FR) won 1 of 13 archived starts between 2025 and 2026, a strike rate of 7.7%. Placed 5 times in total (38.5% of starts).
Who trains Belaya River?
Belaya River (FR) is trained by Harry Derham, who saddled the horse on its most recent run on 17 April 2026.
Who is Belaya River's sire?
Belaya River (FR) is by Siyouni (FR) out of Kosmische (IRE), whose sire is Fastnet Rock.
What is Belaya River's official rating?
The most recent official rating on record is 105, from the run on 17 April 2026. The highest on record is 109.
What is Belaya River's sire's record?
Siyouni (FR)'s progeny in our archive have won 13% of 8,345 runs since Mar 2014 (978 horses), Flat and jumps together. Weakest on heavy going: 9.2% from 457.
Who are Belaya River's siblings?
Out of Kosmische (IRE), Belaya River (FR) has 4 other produce in our archive, 0 of them winners. As at Nov 2026.
Belaya River (FR)·1–13·SR 7.7%
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