Official NHA Assessment

Race 6: play.tabonline.co.za MR 90 HANDICAP (Open)

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Line Horse
Night Ruler
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
4 / 9
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    Royal Watch          4    56.5    1    0.00     3.5   83    87           83    +0
2    Steinbeck            3    57.0    2    0.75     7.0   85    85           85    +0
3    Night Ruler          3    55.0    3    1.15     7.0   81    81           81    +0
4    Aeneas               3    57.0    4    2.15     7.0   85    84           84    -1
5    The Futurist         3    59.0    5    2.25     7.0   89    88           88    -1
6    I Want It All        3    60.0    6    2.35     7.0   91    89           89    -2
7    Dubai Lights         4    56.5    7    2.45     3.5   83    89           89    +6
8    Pas De Nom           2    56.5    8    2.95     0.0   97    96           96    -1
9    Global Ally          6    56.0    9    7.70     0.0   83    93           93    +10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Royal Watch 83 80 83 -3 3.5 -
2 Steinbeck 85 79 85 -6 7.0 -
3 Night Ruler Line 81 75 81 -6 7.0
4 Aeneas 85 82 84 -2 7.0 -
5 The Futurist 89 104 88 +16 7.0 -
6 I Want It All 91 86 89 -3 7.0 -
7 Dubai Lights 83 77 89 -12 3.5 -
8 Pas De Nom 97 91 96 -5 0.0 -
9 Global Ally 83 97 93 +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