Official NHA Assessment

Race 2: www.caperacing.co.za CAPE C STAKES (For Horses 3-years & older with a nett rating of 74 & below)

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Line Horse
Jury Duty
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
7 / 10
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    Jury Duty            4    55.5    1    0.00     4.0   67    67           67    +0
2    Axl                  3    60.0    2    0.75     3.5   70    77           77    +7
3    Swift Action         3    58.5    3    1.05     3.5   66    74           74    +8
4    Tuscan Gold          2    55.5    4    1.10     2.5   67    70           70    +3
5    Palo Queen           5    58.5    5    2.35     0.0   77    81           81    +4
6    Everlasting          2    58.5    6    3.60     2.5   78    76           76    -2
7    Bonanza              3    61.5    7    5.85     3.5   72    80           80    +8
8    Persistance          3    54.5    8    6.85     3.5   59    66           66    +7
9    Rock On Tommy        3    58.5    9    9.10     3.5   67    74           74    +7
10   Wordsworth           7    52.5    10   9.60     0.0   56    69           69    +13
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jury Duty Line 67 77 67 +10 4.0
2 Axl 70 84 77 +7 3.5 -
3 Swift Action 66 77 74 +3 3.5 -
4 Tuscan Gold 67 84 70 +14 2.5 -
5 Palo Queen 77 70 81 -11 0.0 -
6 Everlasting 78 73 76 -3 2.5 -
7 Bonanza 72 57 80 -23 3.5 -
8 Persistance 59 50 66 -16 3.5 -
9 Rock On Tommy 67 50 74 -24 3.5 -
10 Wordsworth 56 65 69 -4 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