Official NHA Assessment

Race 2: 4RACING.TV MAIDEN PLATE (For Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Graduation Time
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
6 / 9
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    Prince Of Denmark    4    58.0    1    0.00     4.5   72    65           65    -7
2    Graduation Time      4    58.0    2    1.25     4.5   69    69           69    +0
3    Bob Lee Swagger      4    58.0    3    3.50     4.5   -     66           66    +66
4    Big Five             3    60.0    4    3.55     7.0   55    65           65    +10
5    Flaming Drum         3    60.0    5    4.80     7.0   55    64           64    +9
6    Landingonthemoon     2    60.0    6    6.05     0.0   47    78           78    +31
7    He's A Gaul          3    58.0    7    8.05     7.0   -     60           60    +60
8    War Sword            4    58.0    8    8.55     4.5   68    65           65    -3
99   Us Open              3    60.0    99   0.00     7.0   -     64           64    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Prince Of Denmark 72 51 65 -14 4.5 -
2 Graduation Time Line 69 70 69 +1 4.5
3 Bob Lee Swagger - 53 66 -13 4.5 -
4 Big Five 55 53 65 -12 7.0 -
5 Flaming Drum 55 50 64 -14 7.0 -
6 Landingonthemoon 47 52 78 -26 0.0 -
7 He's A Gaul - 63 60 +3 7.0 -
8 War Sword 68 58 65 -7 4.5 -
99 Us Open - 60 64 -4 7.0 -
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