Official NHA Assessment

Race 2: TAB 4RACING APP MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Southern Style
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
6 / 8
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    Let's Cruise         3    59.0    1    0.00     7.5   -     56           6     +6
2    Silver Mensa         2    59.0    2    0.10     5.0   -     61           61    +61
3    Heart Of Eternity    3    59.0    3    0.85     7.5   -     56           56    +56
4    Regina Bellissima    2    59.0    4    2.10     5.0   76    61           66    -10
5    Southern Style       5    59.0    5    2.85     0.0   71    71           71    +0
6    Heart And Mind       2    59.0    6    7.25     5.0   62    61           61    -1
7    Arrow Sky            4    60.0    7    17.75    9.0   41    55           55    +14
99   High Distinction     3    57.5    99   0.00     7.5   -     53           53    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Let's Cruise - 71 6 +65 7.5 -
2 Silver Mensa - 77 61 +16 5.0 -
3 Heart Of Eternity - 49 56 -7 7.5 -
4 Regina Bellissima 76 58 66 -8 5.0 -
5 Southern Style Line 71 54 71 -17 0.0
6 Heart And Mind 62 64 61 +3 5.0 -
7 Arrow Sky 41 50 55 -5 9.0 -
99 High Distinction - - 53 -53 7.5 -
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