Official NHA Assessment

Race 1: #THISISRACING WELCOMES YOU WORK RIDERS MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

Back to Race
Line Horse
Song Of Liberty
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
9 / 9
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Song Of Liberty      3    60.0    1    0.00     3.5   64    64           64    +0
2    Risky Business       3    60.0    2    4.75     3.5   63    64           64    +1
3    Special Plea         3    60.0    3    8.00     3.5   62    64           64    +2
4    La Banquiere         4    60.0    4    9.00     4.0   50    63           63    +13
5    Colour Coded         3    60.0    5    9.50     3.5   -     64           64    +64
6    Five Fortunes        3    60.0    6    16.50    3.5   52    64           64    +12
7    Namibsroos           3    60.0    7    17.00    3.5   59    64           64    +5
8    Super Hot            4    60.0    8    21.50    4.0   -     63           63    +63
9    Wolf Moon            3    60.0    9    22.00    3.5   20    64           64    +44
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Song Of Liberty Line 64 52 64 -12 3.5
2 Risky Business 63 75 64 +11 3.5 -
3 Special Plea 62 54 64 -10 3.5 -
4 La Banquiere 50 51 63 -12 4.0 -
5 Colour Coded - 54 64 -10 3.5 -
6 Five Fortunes 52 53 64 -11 3.5 -
7 Namibsroos 59 57 64 -7 3.5 -
8 Super Hot - 10 63 -53 4.0 -
9 Wolf Moon 20 30 64 -34 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