Official NHA Assessment

Race 4: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MIDDLE STAKES (For All Horses)

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Line Horse
Battleground
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
4 / 7
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    Enflame              3    52.0    1    0.00     6.0   86    70           70    -16
2    Battleground         5    54.0    2    2.80     0.0   89    89           89    +0
3    Douglas Dragon       3    52.5    3    3.10     6.0   89    74           79    -10
4    Nebraas              8    62.0    4    6.30     0.0   102   102          102   +0
5    Arlington Action     6    50.0    5    10.70    0.0   76    78           78    +2
99   Banha Bridge         5    50.0    99   0.00     0.0   -     78           78    +0
99   Ethical              2    48.5    99   0.00     0.0   -     75           75    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Enflame 86 98 70 +28 6.0 -
2 Battleground Line 89 92 89 +3 0.0
3 Douglas Dragon 89 89 79 +10 6.0 -
4 Nebraas 102 101 102 -1 0.0 -
5 Arlington Action 76 73 78 -5 0.0 -
99 Banha Bridge - 70 78 -8 0.0 -
99 Ethical - 85 75 +10 0.0 -
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