Official NHA Assessment

Race 5: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MIDDLE STAKES (For horses with nett rating of 101 and below)

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Line Horse
Raiseahallelujah
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
5 / 8
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    56.0    1    0.00     0.0   89    86           86    -3
2    Raiseahallelujah     7    62.0    2    3.25     0.0   101   101          101   +0
3    Twenty Drachma's     4    56.0    3    3.40     9.0   92    70           82    -10
4    Angel's Wish         6    50.0    4    13.50    0.0   67    74           74    +7
5    Flying Bull          4    62.0    5    20.00    9.0   100   80           90    -10
6    Weather Wizard       3    52.0    6    21.50    11.5  85    55           75    -10
7    Absolute Value       3    56.0    7    21.60    11.5  86    63           76    -10
8    Afraad               8    54.0    8    23.75    0.0   82    82           82    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Prime Example 89 93 86 +7 0.0 -
2 Raiseahallelujah Line 101 103 101 +2 0.0
3 Twenty Drachma's 92 83 82 +1 9.0 -
4 Angel's Wish 67 54 74 -20 0.0 -
5 Flying Bull 100 98 90 +8 9.0 -
6 Weather Wizard 85 81 75 +6 11.5 -
7 Absolute Value 86 84 76 +8 11.5 -
8 Afraad 82 79 82 -3 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