How many races has Natural Numbers won?

Natural Numbers (AUS) has yet to win, from 1 archived start in 2026.

Who trains Natural Numbers?

Natural Numbers (AUS) is trained by Y S Tsui, who saddled the horse on its most recent run on 1 October 2026.

Who is Natural Numbers's sire?

Natural Numbers (AUS) is by Alabama Express (AUS) out of Written Era (AUS), whose sire is Written Tycoon.

Horse profile

Natural Numbers (AUS)

5yo gelding · Trainer Y S Tsui · Owner Exceed Expectations Syndicate

by Alabama Express (AUS) out of Written Era (AUS) (Written Tycoon)

1 run · 1 course · from Oct 2026

As at 25 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily

Last run 1 Oct 2026 · 6th of 14

KTB Profile

Lightly raced 5yo gelding with 1 start since Oct 2026. Finished 6 of 14 at Sha Tin (HK) last time.

Based on 1 archived run · updated 25 Oct 2026

0–1Wins / Runs
0%Strike rate
0 (0%)Placed

KTB Speed and Rating

KTB Speed

No KTB Speed figures for this horse. The engine scores GB and Irish racing from Oct 2016; runs elsewhere, or earlier, have no figure.

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 0 figures from 0 runs · a record, not a forecast

KTB Rating

No KTB Rating figures for this horse. The engine scores GB and Irish racing; runs elsewhere, or earlier, have no figure.

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 0 figures from 0 runs · 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

Sire

Alabama Express (AUS)

Progeny in our archive have won 8.3% of 12 runs since Jan 2008 (6 horses). A small sample.

Going	Runs	Wins	SR	vs sire	This horse
Good to Firm	3	0	0%	−8.3	0 from 1
Good	5	0	0%	−8.3	—
Good to Soft	2	1	50%	+41.7	—
Heavy	1	0	0%	−8.3	—
Standard (AW)	1	0	0%	−8.3	—

Distance (all codes)	Runs	Wins	SR	vs sire	This horse
6f – 7f	10	1	10%	+1.7	0 from 1
1m – 1m1f	2	0	0%	−8.3	—

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

Written Era (AUS) (Written Tycoon)

No other produce in our archive. It holds racing in Great Britain, Ireland and France from 2005, so siblings racing elsewhere won’t appear here.

Too few runs for meaningful splits. The full record is below.

Form

Date	Course	Race	Pos	Btn	Wgt	Jockey	SP
2026 · 1 run
01 Oct 26	Sha Tin (HK)	Tianjin Handicap 7f · Good To Firm · 14 ran	6/14	½	8-8	Matthew Chadwick	—

Quick answers

How many races has Natural Numbers won?: Natural Numbers (AUS) has yet to win, from 1 archived start in 2026.
Who trains Natural Numbers?: Natural Numbers (AUS) is trained by Y S Tsui, who saddled the horse on its most recent run on 1 October 2026.
Who is Natural Numbers's sire?: Natural Numbers (AUS) is by Alabama Express (AUS) out of Written Era (AUS), whose sire is Written Tycoon.
What is Natural Numbers's sire's record?: Alabama Express (AUS)'s progeny in our archive have won 8.3% of 12 runs since Jan 2008 (6 horses), Flat and jumps together. A small sample.