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
Silky Jet
Reference for assessment
Exact Matches
2 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
8 / 11
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    Higgledy Piggledy    3    60.0    1    0.00     4.0   72    70           70    -2
2    Rainbow River        3    60.0    2    2.70     4.0   69    72           72    +3
3    Superskitt           2    60.0    3    3.00     0.0   66    80           80    +14
4    Silky Jet            4    60.0    4    5.50     2.0   74    74           74    +0
5    Gold Agent           2    60.0    5    8.00     0.0   75    78           78    +3
6    Vathomvlaffie        2    60.0    6    8.75     0.0   67    78           78    +11
7    Liberty Flag         2    60.0    7    9.60     0.0   62    78           78    +16
8    Arabian Red          4    60.0    8    9.85     2.0   71    74           74    +3
9    Bees And Honey       2    60.0    9    16.25    0.0   54    78           78    +24
10   The Navy Lark        4    60.0    10   19.50    2.0   57    74           74    +17
99   Quiet Strength       3    60.0    99   0.00     4.0   -     70           70    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Higgledy Piggledy 72 74 70 +4 4.0 -
2 Rainbow River 69 66 72 -6 4.0 -
3 Superskitt 66 59 80 -21 0.0 -
4 Silky Jet Line 74 61 74 -13 2.0
5 Gold Agent 75 64 78 -14 0.0 -
6 Vathomvlaffie 67 56 78 -22 0.0 -
7 Liberty Flag 62 59 78 -19 0.0 -
8 Arabian Red 71 74 74 ✓ Match 2.0 -
9 Bees And Honey 54 54 78 -24 0.0 -
10 The Navy Lark 57 74 74 ✓ Match 2.0 -
99 Quiet Strength - - 70 -70 4.0 -
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