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Arbitrary is perhaps the wrong word, but the bottom line is that even though the ratings represent a set weight in pounds, the definition of what represents the pinnacle of a ratings system is dependent on whoever devises the scale. Timeform's scale is different to that of the BHA, which in turn is different to that used by the Racing Post, and there's no-one to insist that those scales are brought into line with each other. Timeform clearly can't modify their own scale as it would affect the continuity of their work, and others would argue the same. That means that any comparison between TF figures and OHRs (or RPR's) needs to be done with the knowledge that there isn't simply a difference in ratings, but also a difference in the scale of those ratings. A Timeform rating of 145 isn't therefore higher than an OHR of 142, but merely different.

<blockquote data-quote="rorydelargy" data-source="post: 2399734" data-attributes="member: 65226"><p>Arbitrary is perhaps the wrong word, but the bottom line is that even though the ratings represent a set weight in pounds, the definition of what represents the pinnacle of a ratings system is dependent on whoever devises the scale. Timeform&#039;s scale is different to that of the BHA, which in turn is different to that used by the Racing Post, and there&#039;s no-one to insist that those scales are brought into line with each other. Timeform clearly can&#039;t modify their own scale as it would affect the continuity of their work, and others would argue the same. That means that any comparison between TF figures and OHRs (or RPR&#039;s) needs to be done with the knowledge that there isn&#039;t simply a difference in ratings, but also a difference in the scale of those ratings. A Timeform rating of 145 isn&#039;t therefore higher than an OHR of 142, but merely different.</p></blockquote><p></p>

[QUOTE="rorydelargy, post: 2399734, member: 65226"] Arbitrary is perhaps the wrong word, but the bottom line is that even though the ratings represent a set weight in pounds, the definition of what represents the pinnacle of a ratings system is dependent on whoever devises the scale. Timeform's scale is different to that of the BHA, which in turn is different to that used by the Racing Post, and there's no-one to insist that those scales are brought into line with each other. Timeform clearly can't modify their own scale as it would affect the continuity of their work, and others would argue the same. That means that any comparison between TF figures and OHRs (or RPR's) needs to be done with the knowledge that there isn't simply a difference in ratings, but also a difference in the scale of those ratings. A Timeform rating of 145 isn't therefore higher than an OHR of 142, but merely different. [/QUOTE]

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