Official NHA Assessment

Race 5: JACQUELINE HENDERSON, GRAHAM KENT, GINGER MASTERTON PINNACLE STAKES (Open)

Back to Race
Line Horse
Radicchio
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
3 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Musical Score        3    58.0    1    0.00     2.5   104   91           91    -13
2    Radicchio            5    60.0    2    1.75     0.0   103   103          103   +0
3    Silent War           3    58.0    3    3.00     2.5   100   93           93    -7
4    Navajo Nation        4    60.0    4    3.20     1.0   102   100          100   -2
5    Key Element          4    56.0    5    4.30     1.0   95    90           90    -5
6    Royal Edition        4    58.0    6    5.20     1.0   90    94           94    +4
7    Thunee Playa         4    60.0    7    7.80     1.0   105   98           98    -7
8    Zuzan                3    58.0    8    23.00    2.5   98    91           91    -7
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Musical Score 104 107 91 +16 2.5 -
2 Radicchio Line 103 100 103 -3 0.0
3 Silent War 100 91 93 -2 2.5 -
4 Navajo Nation 102 104 100 +4 1.0 -
5 Key Element 95 92 90 +2 1.0 -
6 Royal Edition 90 92 94 -2 1.0 -
7 Thunee Playa 105 107 98 +9 1.0 -
8 Zuzan 98 98 91 +7 2.5 -
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