Official NHA Assessment

Race 3: TABONLINE.CO.ZA MAIDEN PLATE (For all Maidens)

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Line Horse
Autumn Moon
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
7 / 11
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    The Heat Is On       3    57.0    1    0.00     1.0   71    55           55    -16
2    Masterful Guy        3    60.0    2    0.10     1.0   63    61           61    -2
3    Royal Port Louis     2    56.0    3    0.30     0.0   -     60           60    +60
4    Autumn Moon          3    60.0    4    1.30     1.0   64    64           64    +0
5    Stratospheric        2    56.0    5    1.60     0.0   -     58           58    +58
6    Admiral's Ransom     3    60.0    6    2.00     1.0   63    64           64    +1
7    Princess Louisa      3    57.5    7    2.30     1.0   63    58           58    -5
8    Quasimodo            2    56.0    8    4.80     0.0   -     55           55    +55
9    Forever Bill         3    60.0    9    5.20     1.0   63    61           61    -2
10   Spice Captain        2    56.0    10   8.45     0.0   -     55           55    +55
11   Whiskey Mac          3    60.0    11   12.45    1.0   -     61           61    +61
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 The Heat Is On 71 71 55 +16 1.0 -
2 Masterful Guy 63 58 61 -3 1.0 -
3 Royal Port Louis - 70 60 +10 0.0 -
4 Autumn Moon Line 64 57 64 -7 1.0
5 Stratospheric - 97 58 +39 0.0 -
6 Admiral's Ransom 63 48 64 -16 1.0 -
7 Princess Louisa 63 54 58 -4 1.0 -
8 Quasimodo - 89 55 +34 0.0 -
9 Forever Bill 63 56 61 -5 1.0 -
10 Spice Captain - 60 55 +5 0.0 -
11 Whiskey Mac - - 61 -61 1.0 -
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