The Power of Ratings

Ratings are an assessment of the best ability of a horse, as shown on the track. Ability is inborn – you have what you’re given by your parents, no more, no less. Maturity, good training, sensible feeding – those are factors that bring out a horse’s inherent ability, but they won’t be able to improve on it. You either have it, or you don’t.

We have added The Power of Ratings by breeder

In the two tables for colts and fillies, the percentages on the topline show the distribution across all bins for the racing population as a whole.

An analysis of Graded winners shows that the second highest rating bin (90 upwards) is a minimum requirement for Gr1 and Gr2 winners, and to a large degree also Gr3 winners (the latter category features many handicaps, where lowly rated horses are able to beat the better ones).

Taking the male offspring (see table for colts), 2% falls in the top-bin (>99), 5% in the second highest bin (90-99), which together make for 7%. If the 13% from third highest bin (80-89) is added (the minimum for Listed and multiple winners) the combined rounded off total gets to 19%.

Looking at the bottom bin (<59, the likely non-winners), the population average is a scary 32% – one in three.

In the table, the six bins are shown together with two columns which add the two top-bins (AR>89, black type candidates), and three top-bins (AR>79, useful winners). Also added is the total number of rated horses (by sex), from which the bin percentages are calculated – the larger the number, the more reliable the percentages.

All this represents what can be expected, on average, from the colts produced by the sires in the table. The top-bins as well as the bottom ones help construct an informative picture. The bin-ratings for fillies (see table for fillies) are on a lower level than the colts, by 5 pounds (it equates the sex allowance).

View:

Colts table
Fillies table
The Power of ratings by breeder

The Power of Ratings by breeder

Breeders with 100 or more runners.

Colts

All	23%	18%	26%	20%	8%	4%	33%	12%	26,388
breeder	< 59	59 - 69	70 - 79	80 - 89	90 - 99	> 99	> 79	> 89	count
Ambiance Stud	22%	19%	29%	18%	8%	4%	30%	12%	208
Arc-en-Ciel	21%	12%	30%	23%	8%	6%	37%	15%	177
Ascot Stud	10%	15%	27%	24%	14%	9%	47%	23%	353
Avontuur Estate	12%	7%	19%	27%	20%	15%	62%	35%	203
BH, AJ & ME Botha	25%	21%	25%	16%	11%	3%	30%	14%	126
Backworth Stud	15%	21%	25%	25%	13%	1%	39%	14%	103
Beaumont Stud	20%	16%	27%	22%	10%	5%	37%	15%	155
Birch Bros	20%	22%	35%	15%	7%	2%	24%	9%	127
Boland Stud	22%	13%	31%	22%	8%	5%	35%	13%	130
Bosworth Farm Stud	25%	25%	23%	15%	8%	4%	27%	12%	193
Breedon Stud	34%	18%	25%	16%	6%	2%	23%	8%	128
Bush Hill Stud	29%	20%	26%	16%	7%	2%	25%	9%	282
CJ Saunders	22%	21%	30%	19%	6%	2%	27%	8%	161
Cheveley Stud	11%	16%	28%	26%	12%	7%	45%	19%	245
Clifton Stud	20%	24%	28%	17%	7%	4%	28%	11%	307
D Cohen & Sons	17%	8%	28%	28%	15%	5%	48%	20%	221
DGM Southey	25%	20%	25%	20%	7%	4%	30%	10%	143
Daytona Stud	9%	11%	27%	29%	15%	8%	52%	23%	142
Drakenstein Stud	8%	9%	26%	25%	15%	17%	57%	31%	378
Favour Stud	24%	14%	24%	24%	12%	3%	39%	15%	140
GH Rowles	27%	17%	28%	17%	8%	3%	28%	11%	155
GJ Armitage	20%	18%	24%	20%	11%	7%	39%	19%	308
Gary Player Stud	18%	20%	29%	20%	7%	5%	32%	12%	375
Graystone Stud	19%	22%	36%	13%	7%	3%	23%	10%	222
Hemel 'n Aarde Stud	19%	23%	27%	20%	8%	3%	31%	11%	368
High Season Stud	9%	16%	34%	21%	17%	4%	41%	21%	140
IR Heyns	8%	15%	27%	28%	17%	5%	50%	22%	111
Klawervlei Stud	15%	16%	27%	24%	11%	6%	42%	17%	1180
La Plaisance Stud	12%	13%	33%	23%	11%	9%	42%	19%	207
Lammerskraal Stud	9%	8%	22%	26%	20%	15%	61%	35%	331
Maine Chance	11%	13%	22%	29%	17%	9%	54%	25%	617
Mauritzfontein Stud	6%	14%	23%	28%	19%	10%	57%	29%	137
Moutonshoek	20%	13%	28%	22%	11%	5%	39%	16%	267
Nadeson Park Stud	26%	18%	23%	21%	9%	2%	33%	11%	196
Narrow Creek Stud	18%	9%	33%	26%	9%	5%	40%	14%	125
Normandy Stud	14%	16%	25%	26%	12%	8%	45%	20%	254
Oldlands Stud	15%	24%	29%	17%	10%	6%	33%	16%	193
Piemonte Stud	28%	15%	33%	19%	2%	2%	23%	4%	124
R & Mrs Pickering	22%	18%	21%	30%	9%	0%	39%	9%	121
Rathmor Stud	27%	15%	25%	19%	8%	5%	32%	13%	136
Ridgemont Highlands	10%	11%	25%	28%	15%	11%	55%	26%	686
Riethuiskraal Stud	21%	24%	29%	20%	5%	2%	27%	7%	126
Riverton Stud	12%	14%	31%	22%	12%	9%	43%	21%	161
Rosedene Stud	20%	23%	29%	20%	7%	2%	29%	9%	199
Scott Bros	19%	16%	31%	21%	8%	4%	33%	12%	574
Somerset Stud	18%	13%	38%	18%	11%	2%	31%	12%	114
Summerhill Stud	19%	15%	26%	23%	10%	7%	40%	17%	1115
The Alchemy	17%	17%	26%	26%	9%	5%	40%	14%	286
Varsfontein Stud	9%	13%	25%	27%	14%	12%	53%	26%	426
Waterford Stud	31%	20%	31%	15%	3%	1%	19%	4%	331
Wicklow Stud	15%	15%	37%	20%	10%	4%	34%	14%	101
Wilgerbosdrift	9%	11%	23%	31%	14%	11%	57%	25%	252
Wilgerbosdrift & Mau...	12%	14%	30%	21%	15%	7%	44%	22%	517
Yellow Star Stud	36%	24%	20%	12%	6%	1%	20%	8%	173

Fillies

All	26%	18%	25%	20%	9%	3%	32%	12%	25,906
breeder	< 54	54 - 64	65 - 74	75 - 84	85 - 94	> 94	> 74	> 84	count
Ambiance Stud	21%	20%	23%	24%	9%	3%	36%	12%	190
Arc-en-Ciel	16%	11%	36%	28%	7%	2%	37%	9%	170
Ascot Stud	16%	14%	24%	23%	16%	6%	45%	22%	341
Avontuur Estate	8%	11%	24%	29%	18%	12%	58%	29%	182
B Le Roux	14%	15%	30%	27%	10%	4%	41%	14%	100
BH, AJ & ME Botha	31%	18%	27%	21%	3%	0%	23%	3%	115
Backworth Stud	16%	15%	24%	31%	8%	6%	45%	14%	118
Beaumont Stud	21%	25%	23%	20%	10%	1%	31%	11%	145
Boland Stud	13%	15%	31%	25%	9%	7%	40%	15%	136
Bosworth Farm Stud	33%	15%	28%	16%	5%	4%	25%	9%	212
Breedon Stud	22%	17%	41%	16%	3%	1%	20%	4%	107
Bush Hill Stud	29%	21%	30%	15%	5%	0%	20%	5%	261
CJ Saunders	22%	18%	32%	21%	5%	2%	28%	7%	158
Cheveley Stud	14%	13%	24%	28%	13%	9%	49%	21%	247
Clifton Stud	22%	20%	27%	19%	10%	3%	31%	13%	279
D Cohen & Sons	13%	11%	30%	26%	14%	6%	46%	20%	202
DGM Southey	28%	22%	24%	18%	6%	1%	26%	8%	143
Daytona Stud	16%	17%	31%	24%	8%	4%	36%	12%	109
Drakenstein Stud	9%	11%	20%	28%	19%	13%	60%	31%	367
Favour Stud	14%	22%	30%	18%	10%	6%	34%	16%	141
GH Rowles	15%	15%	28%	26%	13%	3%	42%	15%	110
GJ Armitage	19%	14%	23%	28%	11%	6%	45%	17%	286
Gary Player Stud	22%	16%	24%	25%	9%	3%	37%	12%	360
Graystone Stud	19%	20%	28%	22%	7%	3%	33%	11%	218
Hemel 'n Aarde Stud	20%	17%	31%	22%	7%	3%	32%	10%	344
High Season Stud	12%	11%	30%	37%	9%	1%	47%	10%	141
IR Heyns	13%	9%	36%	18%	19%	5%	42%	24%	106
Keivan Stud	22%	19%	34%	16%	8%	1%	24%	9%	103
Klawervlei Stud	20%	16%	24%	25%	10%	4%	40%	15%	1168
La Plaisance Stud	8%	11%	26%	34%	15%	5%	55%	21%	228
Lammerskraal Stud	7%	10%	24%	30%	18%	11%	59%	29%	361
Maine Chance	11%	12%	23%	30%	16%	8%	54%	24%	643
Mauritzfontein Stud	5%	13%	28%	30%	14%	10%	54%	24%	141
Moutonshoek	23%	15%	24%	29%	6%	3%	37%	9%	308
Nadeson Park Stud	19%	23%	22%	26%	8%	3%	37%	11%	200
Narrow Creek Stud	13%	14%	28%	22%	16%	7%	45%	23%	119
Normandy Stud	17%	15%	25%	26%	13%	4%	43%	17%	246
Oldlands Stud	19%	13%	30%	23%	11%	4%	38%	15%	233
PG de Beyer	15%	19%	17%	29%	12%	9%	50%	20%	103
Piemonte Stud	35%	20%	25%	12%	7%	2%	21%	9%	138
R & Mrs Pickering	28%	14%	26%	21%	8%	3%	32%	11%	118
Rathmor Stud	30%	13%	33%	14%	7%	3%	24%	10%	138
Ridgemont Highlands	8%	11%	24%	30%	18%	9%	57%	27%	638
Riethuiskraal Stud	24%	17%	23%	18%	14%	3%	36%	17%	104
Riverton Stud	13%	14%	33%	22%	13%	4%	40%	18%	134
Rosedene Stud	23%	19%	31%	21%	6%	0%	27%	6%	216
Scott Bros	22%	18%	27%	23%	8%	2%	33%	10%	564
Somerset Stud	25%	28%	21%	19%	6%	2%	27%	7%	109
Summerhill Stud	18%	15%	31%	21%	10%	5%	36%	14%	1088
TD Andrews	17%	14%	29%	25%	12%	3%	40%	15%	110
The Alchemy	17%	15%	29%	26%	9%	4%	39%	13%	269
Varsfontein Stud	8%	11%	26%	29%	16%	10%	55%	26%	515
Waterford Stud	28%	24%	28%	14%	5%	1%	21%	6%	297
Wicklow Stud	11%	25%	27%	25%	11%	2%	38%	13%	104
Wilgerbosdrift	9%	11%	20%	30%	20%	9%	59%	30%	264
Wilgerbosdrift & Mau...	10%	13%	26%	29%	14%	9%	52%	23%	531
Yellow Star Stud	27%	18%	29%	19%	5%	1%	25%	6%	153

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