Official NHA Assessment

Race 8: WWW.TAB.CO.ZA MR 96 HANDICAP (Open)

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Line Horse
Warm Winter Nite
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
4 / 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    Halberdier           4    56.5    1    0.00     0.0   89    92           89    +0
2    Passage Of Power     6    59.5    2    0.60     0.0   95    98           98    +3
3    Warm Winter Nite     2    58.0    3    0.80     1.5   92    92           92    +0
4    Chieftain            3    60.0    4    1.10     2.5   99    94           94    -5
5    Richard The First    2    57.5    5    2.10     1.5   91    91           91    +0
6    Johnny Appleseed     2    53.0    6    2.15     1.5   93    82           83    -10
7    Sorceress Supreme    3    60.0    7    2.40     2.5   99    94           94    -5
8    Address The Nation   3    58.0    8    3.40     2.5   95    90           90    -5
9    Master Casper        2    59.5    9    3.90     1.5   98    95           95    -3
99   Mist In Scotland     2    52.0    99   0.00     1.5   -     80           80    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Halberdier 89 83 89 -6 0.0 -
2 Passage Of Power 95 76 98 -22 0.0 -
3 Warm Winter Nite Line 92 92 92 ✓ Match 1.5
4 Chieftain 99 106 94 +12 2.5 -
5 Richard The First 91 87 91 -4 1.5 -
6 Johnny Appleseed 93 90 83 +7 1.5 -
7 Sorceress Supreme 99 98 94 +4 2.5 -
8 Address The Nation 95 93 90 +3 2.5 -
9 Master Casper 98 98 95 +3 1.5 -
99 Mist In Scotland - 77 80 -3 1.5 -
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