Official NHA Assessment

Race 1: 4RACING WELCOMES YOU WORK RIDERS MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

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Line Horse
Heartlight
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
2 / 13
Within 2 points
Significant Diffs
8 / 13
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    World Heritage       2    60.0    1    0.00     0.5   59    54           54    -5
2    Wilkies              2    60.0    2    1.10     0.5   67    54           57    -10
3    War Queen            2    57.0    3    2.25     0.5   -     48           48    +48
4    Signora Bomba        2    57.0    4    3.25     0.5   -     48           48    +48
5    Heartlight           2    60.0    5    4.75     0.5   54    54           54    +0
6    Waitforgreenlight    2    57.0    6    5.00     0.5   -     48           48    +48
7    Someday Maybe        3    60.0    7    5.25     1.5   59    52           52    -7
8    Arctic Flag          2    58.0    8    12.25    0.5   -     50           50    +50
9    Together Again       5    60.0    9    13.75    0.0   55    55           55    +0
10   Im A Blondie         2    57.0    10   16.25    0.5   -     48           48    +48
99   Sankofa              3    60.0    99   0.00     1.5   -     52           52    +0
99   Jumping Analia       2    57.0    99   0.00     0.5   -     48           48    +0
99   Sebastian's Angel    2    57.0    99   0.00     0.5   -     48           48    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 World Heritage 59 55 54 +1 0.5 -
2 Wilkies 67 50 57 -7 0.5 -
3 War Queen - 84 48 +36 0.5 -
4 Signora Bomba - 69 48 +21 0.5 -
5 Heartlight Line 54 48 54 -6 0.5
6 Waitforgreenlight - 67 48 +19 0.5 -
7 Someday Maybe 59 56 52 +4 1.5 -
8 Arctic Flag - 60 50 +10 0.5 -
9 Together Again 55 55 55 ✓ Match 0.0 -
10 Im A Blondie - 36 48 -12 0.5 -
99 Sankofa - 55 52 +3 1.5 -
99 Jumping Analia - 72 48 +24 0.5 -
99 Sebastian's Angel - 52 48 +4 0.5 -
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