Official NHA Assessment

Race 3: BETWAY AVIATOR MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Together Again
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
6 / 8
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    Circus Lights        5    60.0    1    0.00     0.0   66    58           58    -8
2    Inafix               4    58.0    2    1.50     11.0  -     32           32    +32
3    Empress Game         3    57.5    3    3.00     9.5   68    34           58    -10
4    Presley              4    58.0    4    4.30     11.0  -     32           32    +32
5    Together Again       5    57.5    5    4.70     0.0   53    53           53    +0
6    Griffin Park         4    58.0    6    5.80     11.0  -     32           32    +32
7    Sebastian's Angel    2    55.5    7    7.00     6.5   69    36           59    -10
8    Sky On Fire          4    58.0    8    12.00    11.0  -     32           32    +32
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Circus Lights 66 64 58 +6 0.0 -
2 Inafix - 69 32 +37 11.0 -
3 Empress Game 68 61 58 +3 9.5 -
4 Presley - 90 32 +58 11.0 -
5 Together Again Line 53 55 53 +2 0.0
6 Griffin Park - 58 32 +26 11.0 -
7 Sebastian's Angel 69 52 59 -7 6.5 -
8 Sky On Fire - 60 32 +28 11.0 -
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