Official NHA Assessment

Race 7: BOOK FOR JULY DAY IN JOZI 0116811796 PINNACLE STAKES (For all horses)

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Line Horse
Unzen
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
3 / 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    Texas Red            5    56.0    1    0.00     0.0   104   107          107   +3
2    Mrs Geriatrix        2    56.5    2    2.90     0.0   112   110          110   -2
3    On The Horizon       4    52.5    3    3.00     0.5   96    101          101   +5
4    Unzen                3    58.0    4    4.00     1.5   109   109          109   +0
5    Cliff Hanger         2    56.0    5    4.90     0.0   106   107          107   +1
6    Captain Peg          5    56.5    6    6.50     0.0   107   108          108   +1
7    Good Queen Bess (GB  4    52.5    7    7.30     0.5   97    99           99    +2
8    Forever Mine         4    58.0    8    7.80     0.5   107   110          110   +3
9    Quantum Theory       5    60.0    9    15.00    0.0   112   115          115   +3
10   Anfields Rocket      5    60.0    10   16.25    0.0   113   115          115   +2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Texas Red 104 119 107 +12 0.0 -
2 Mrs Geriatrix 112 112 110 +2 0.0 -
3 On The Horizon 96 100 101 -1 0.5 -
4 Unzen Line 109 116 109 +7 1.5
5 Cliff Hanger 106 111 107 +4 0.0 -
6 Captain Peg 107 100 108 -8 0.0 -
7 Good Queen Bess (GB) 97 97 99 -2 0.5 -
8 Forever Mine 107 105 110 -5 0.5 -
9 Quantum Theory 112 112 115 -3 0.0 -
10 Anfields Rocket 113 106 115 -9 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