Official NHA Assessment

Race 6: Call now! Or play online. www.trackandball.co.za FM 64 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Amberglo Star
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
1 / 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    Roy's Rocker         3    54.0    1    0.00     9.0   53    32           53    +0
2    Cozy Dot Com         5    50.0    2    0.20     0.0   52    42           42    -10
3    Amberglo Star        5    53.5    3    2.30     0.0   51    51           51    +0
4    Rose Willow          4    54.5    4    2.70     7.0   53    39           43    -10
5    Port Adelaide (AUS)  4    58.5    5    4.70     7.0   61    45           51    -10
6    Birdwatcher          5    58.0    6    5.20     0.0   60    58           58    -2
7    Umvoti               2    57.5    7    5.60     0.0   77    57           67    -10
8    Masters Beauty       6    58.5    8    9.10     0.0   64    59           59    -5
99   Angel's Wish         6    57.5    99   0.00     0.0   -     57           57    +0
99   Magic Inspiration    2    57.5    99   0.00     0.0   -     57           57    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Roy's Rocker 53 53 53 ✓ Match 9.0 -
2 Cozy Dot Com 52 47 42 +5 0.0 -
3 Amberglo Star Line 51 50 51 -1 0.0
4 Rose Willow 53 48 43 +5 7.0 -
5 Port Adelaide (AUS) 61 54 51 +3 7.0 -
6 Birdwatcher 60 53 58 -5 0.0 -
7 Umvoti 77 63 67 -4 0.0 -
8 Masters Beauty 64 62 59 +3 0.0 -
99 Angel's Wish - 54 57 -3 0.0 -
99 Magic Inspiration - 67 57 +10 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