Official NHA Assessment

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

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Line Horse
Song Of Angels
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
6 / 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    Song Of Angels       3    60.0    1    0.00     1.5   42    42           42    +0
2    Skyfull              2    55.5    2    0.05     0.0   -     36           36    +36
3    Treaty               2    55.0    3    4.00     0.0   -     37           37    +37
4    Dame Colleen         3    60.0    4    5.50     1.5   47    42           42    -5
5    Ballycotton          2    55.0    5    7.25     0.0   -     35           35    +35
6    Sarayu               3    60.0    6    13.00    1.5   38    42           42    +4
7    Jane Wilson          3    60.0    7    14.00    1.5   44    42           42    -2
8    Eurydice             2    55.0    8    29.00    0.0   -     35           35    +35
9    Colour Coded         3    60.0    9    99.99    1.5   55    42           45    -10
99   Voshaarnooi          2    55.0    99   0.00     0.0   -     35           35    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Song Of Angels Line 42 44 42 +2 1.5
2 Skyfull - 54 36 +18 0.0 -
3 Treaty - 48 37 +11 0.0 -
4 Dame Colleen 47 46 42 +4 1.5 -
5 Ballycotton - 53 35 +18 0.0 -
6 Sarayu 38 38 42 -4 1.5 -
7 Jane Wilson 44 40 42 -2 1.5 -
8 Eurydice - 48 35 +13 0.0 -
9 Colour Coded 55 54 45 +9 1.5 -
99 Voshaarnooi - 50 35 +15 0.0 -
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