Official NHA Assessment

Race 6: TAB TELEBET 0861 000 822 MR 66 HANDICAP (Open)

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Line Horse
Absolute Value
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
4 / 9
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Prime Example        2    59.0    1    0.00     0.0   74    71           74    +0
2    Barmaid              2    53.0    2    0.05     0.0   62    59           59    -3
3    Absolute Value       3    59.5    3    1.75     5.0   66    66           66    +0
4    Pacific Express      2    56.5    4    7.25     0.0   69    66           66    -3
5    Flag Bearer          3    60.0    5    7.50     5.0   67    63           63    -4
6    Queen Britanna       2    53.0    6    8.00     0.0   67    59           59    -8
7    Just Eminent         3    56.0    7    10.50    5.0   68    55           58    -10
8    Lady Sanza           3    55.5    8    11.00    5.0   58    54           54    -4
9    Understated          5    53.0    9    14.50    0.0   52    59           59    +7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Prime Example 74 93 74 +19 0.0 -
2 Barmaid 62 55 59 -4 0.0 -
3 Absolute Value Line 66 84 66 +18 5.0
4 Pacific Express 69 59 66 -7 0.0 -
5 Flag Bearer 67 60 63 -3 5.0 -
6 Queen Britanna 67 57 59 -2 0.0 -
7 Just Eminent 68 60 58 +2 5.0 -
8 Lady Sanza 58 58 54 +4 5.0 -
9 Understated 52 50 59 -9 0.0 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. Apply special rules (maiden caps, layoff allowance)
Key Formulas:
  • Drag Effect: Varies by distance (see Benchmarks page)
  • 1 length ≈ 1kg at 1 mile (1600m)
  • WFA Scale: Based on Admiral Rous's 1855 table
  • Rating Points: 1kg = 2 rating points