Official NHA Assessment

Race 3: SA CLASSIC DAY 4 MARCH MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Quantifier
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
7 / 11
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    Breeze Over          5    60.0    1    0.00     0.0   -     73           6     +6
2    Bronze Sword         3    60.0    2    2.00     5.0   71    66           66    -5
3    American Biscuit     3    60.0    3    2.05     5.0   -     66           66    +66
4    Broadlands           3    56.5    4    2.70     5.0   71    58           61    -10
5    Quantifier           2    60.0    5    2.75     0.0   75    75           75    +0
6    Manz Knight          6    60.0    6    6.00     0.0   59    73           73    +14
7    Celtic Rush          5    60.0    7    10.50    0.0   -     73           73    +73
8    Skyjet               2    60.0    8    14.50    0.0   65    73           73    +8
9    Chasin               2    60.0    9    29.50    0.0   67    73           73    +6
10   African Duke         3    60.0    10   99.99    5.0   -     63           63    +63
99   Destinationunknown   3    60.0    99   0.00     5.0   -     63           63    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Breeze Over - 99 6 +93 0.0 -
2 Bronze Sword 71 66 66 ✓ Match 5.0 -
3 American Biscuit - 65 66 -1 5.0 -
4 Broadlands 71 69 61 +8 5.0 -
5 Quantifier Line 75 74 75 -1 0.0
6 Manz Knight 59 60 73 -13 0.0 -
7 Celtic Rush - 69 73 -4 0.0 -
8 Skyjet 65 57 73 -16 0.0 -
9 Chasin 67 64 73 -9 0.0 -
10 African Duke - - 63 -63 5.0 -
99 Destinationunknown - 46 63 -17 5.0 -
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