Official NHA Assessment

Race 1: CAPE RACING CAPE OF GOOD HOPE NURSERY (Grade 3) (For 2 year-olds)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
10 / 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    We're Jamming        5    60.0    1    0.00     0.0   -     -            -     +0
2    Wecangoallnight      2    60.0    2    2.00     3.0   -     -            -     +0
3    Grinkov              2    60.0    3    2.20     3.0   -     -            -     +0
4    Pure Maverick        2    60.0    4    2.70     3.0   -     -            -     +0
5    Pas De Nom           2    60.0    5    3.70     3.0   -     -            -     +0
6    Kimball O'Hara       2    60.0    6    5.70     3.0   -     -            -     +0
7    Trompie              2    60.0    7    6.20     3.0   -     -            -     +0
8    Ensuing              2    60.0    8    7.45     3.0   -     -            -     +0
9    Jayrani              2    60.0    9    9.95     3.0   -     -            -     +0
10   Teatro               5    60.0    10   10.45    0.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 We're Jamming - 108 - +108 0.0 -
2 Wecangoallnight - 95 - +95 3.0 -
3 Grinkov - 87 - +87 3.0 -
4 Pure Maverick - 94 - +94 3.0 -
5 Pas De Nom - 91 - +91 3.0 -
6 Kimball O'Hara - 61 - +61 3.0 -
7 Trompie - 107 - +107 3.0 -
8 Ensuing - 87 - +87 3.0 -
9 Jayrani - 69 - +69 3.0 -
10 Teatro - 91 - +91 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