Official NHA Assessment

Race 2: CAPE RACING SALES MAIDEN PLATE (For all Maidens)

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Line Horse
The Us Of A
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
9 / 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    Wissa's On Fire      4    60.0    1    0.00     4.0   78    74           70    -8
2    Cliff Swallow        3    60.0    2    2.25     3.5   -     75           75    +75
3    The Us Of A          3    60.0    3    3.50     3.5   75    75           75    +0
4    Approach Shot        2    60.0    4    5.25     2.5   79    77           77    -2
5    Igugulethu           2    60.0    5    5.30     2.5   80    77           77    -3
6    The Night Ferry      3    60.0    6    8.05     3.5   74    75           75    +1
7    Stars In Heaven      2    60.0    7    8.80     2.5   74    77           77    +3
8    Mc Dazzler           2    60.0    8    10.55    2.5   -     77           77    +77
9    Mo Ment              4    60.0    9    11.30    4.0   -     74           74    +74
10   Gift Of Grace        3    60.0    10   11.80    3.5   -     75           75    +75
11   Oregon               3    60.0    11   13.80    3.5   -     75           75    +75
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Wissa's On Fire 78 71 70 +1 4.0 -
2 Cliff Swallow - 72 75 -3 3.5 -
3 The Us Of A Line 75 104 75 +29 3.5
4 Approach Shot 79 70 77 -7 2.5 -
5 Igugulethu 80 83 77 +6 2.5 -
6 The Night Ferry 74 62 75 -13 3.5 -
7 Stars In Heaven 74 87 77 +10 2.5 -
8 Mc Dazzler - 54 77 -23 2.5 -
9 Mo Ment - 93 74 +19 4.0 -
10 Gift Of Grace - 53 75 -22 3.5 -
11 Oregon - 50 75 -25 3.5 -
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