Official NHA Assessment

Race 7: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MR 64 HANDICAP (Open)

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Line Horse
Full Go
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
4 / 10
Within 2 points
Significant Diffs
5 / 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    Kiss Of Fire         5    52.5    1    0.00     0.0   57    48           57    +0
2    Stop The Traffic     4    58.0    2    0.25     0.5   60    58           58    -2
3    Full Go              6    53.5    3    4.65     0.0   51    51           51    +0
4    Crepuscolo           4    58.0    4    6.65     0.5   60    58           58    -2
5    Hat Furious          4    59.0    5    7.40     0.5   62    60           60    -2
6    Red Sparrow          3    58.0    6    8.15     1.5   63    56           56    -7
7    That's Magical       3    52.0    7    8.40     1.5   51    44           44    -7
8    Circle Of Grace      4    55.5    8    8.70     0.5   58    53           53    -5
9    Callaburn            2    55.0    9    10.50    0.0   54    53           53    -1
10   Sneak Preview        3    60.0    10   10.55    1.5   64    60           60    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kiss Of Fire 57 68 57 +11 0.0 -
2 Stop The Traffic 60 65 58 +7 0.5 -
3 Full Go Line 51 59 51 +8 0.0
4 Crepuscolo 60 58 58 ✓ Match 0.5 -
5 Hat Furious 62 53 60 -7 0.5 -
6 Red Sparrow 63 55 56 -1 1.5 -
7 That's Magical 51 54 44 +10 1.5 -
8 Circle Of Grace 58 51 53 -2 0.5 -
9 Callaburn 54 52 53 -1 0.0 -
10 Sneak Preview 64 63 60 +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