Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

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Line Horse
Zoom Lady
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
7 / 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    Flying Broomstick    3    60.0    1    0.00     10.5  61    54           54    -7
2    Shine In Memphis     2    58.0    2    1.75     7.0   -     57           57    +57
3    Zoom Lady            2    60.0    3    3.95     7.0   61    61           61    +0
4    Right Turn On Red    3    58.0    4    4.00     10.5  -     50           50    +50
5    Venetian Moonlight   3    58.0    5    4.75     10.5  -     50           50    +50
6    Higgledy Piggledy    3    55.5    6    5.25     10.5  -     45           45    +45
7    Dee Day              4    58.0    7    7.00     12.0  -     47           47    +47
8    Crimson Forest       3    58.0    8    7.50     10.5  -     50           50    +50
9    Fire Fire            3    58.0    9    8.50     10.5  -     50           50    +50
10   Elusive Hunter       4    58.0    10   10.75    12.0  -     47           47    +47
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Flying Broomstick 61 52 54 -2 10.5 -
2 Shine In Memphis - 75 57 +18 7.0 -
3 Zoom Lady Line 61 60 61 -1 7.0
4 Right Turn On Red - 77 50 +27 10.5 -
5 Venetian Moonlight - 58 50 +8 10.5 -
6 Higgledy Piggledy - 74 45 +29 10.5 -
7 Dee Day - 53 47 +6 12.0 -
8 Crimson Forest - 71 50 +21 10.5 -
9 Fire Fire - - 50 -50 10.5 -
10 Elusive Hunter - 50 47 +3 12.0 -
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