Official NHA Assessment

Race 4: SA CLASSIC 2 MARCH FOR BOOKINGS CALL 011 681 1796 MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Crystal Maiden
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
7 / 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    Kadizora             4    56.5    1    0.00     4.0   80    72           70    -10
2    Agamemnon            3    60.0    2    3.50     7.0   66    75           75    +9
3    Crystal Maiden       4    56.5    3    6.30     4.0   72    72           72    +0
4    Taxhaven             4    60.0    4    7.50     4.0   77    79           79    +2
5    Blue Cloud           3    56.5    5    29.75    7.0   -     66           66    +66
6    Three Bells          3    56.5    6    35.25    7.0   48    66           66    +18
99   Karoo Gold           3    60.0    99   0.00     7.0   -     73           73    +0
99   Judgement Day        3    60.0    99   0.00     7.0   -     73           73    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kadizora 80 72 70 +2 4.0 -
2 Agamemnon 66 58 75 -17 7.0 -
3 Crystal Maiden Line 72 66 72 -6 4.0
4 Taxhaven 77 96 79 +17 4.0 -
5 Blue Cloud - 54 66 -12 7.0 -
6 Three Bells 48 43 66 -23 7.0 -
99 Karoo Gold - 67 73 -6 7.0 -
99 Judgement Day - 90 73 +17 7.0 -
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