Official NHA Assessment

Race 3: CIVIL AVIATION AUTHORITY OF ZIMBABWE MERIT RATED 75 HANDICAP (Open)

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Line Horse
Abayyaan
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
4 / 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    Ian's Ferrari        3    56.0    1    0.00     1.0   67    63           67    +0
2    Abayyaan             3    61.5    2    0.75     1.0   78    78           78    +0
3    Action Zone          3    60.0    3    1.00     1.0   77    75           75    -2
4    Cool Solution        9    52.0    4    7.00     0.0   53    57           57    +4
5    Duchess Of War       2    52.0    5    11.00    0.0   59    57           57    -2
6    Elmhurst             2    52.0    6    13.00    0.0   58    57           57    -1
7    Bird In Space        2    54.5    7    18.00    0.0   66    62           62    -4
99   Star Aglow           3    57.0    99   0.00     1.0   -     65           65    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ian's Ferrari 67 63 67 -4 1.0 -
2 Abayyaan Line 78 94 78 +16 1.0
3 Action Zone 77 90 75 +15 1.0 -
4 Cool Solution 53 51 57 -6 0.0 -
5 Duchess Of War 59 55 57 -2 0.0 -
6 Elmhurst 58 56 57 -1 0.0 -
7 Bird In Space 66 66 62 +4 0.0 -
99 Star Aglow - 74 65 +9 1.0 -
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