Official NHA Assessment

Race 7: RACEHORSE OWNERS ASSOCIATION MIDDLE STAKES (For horses with nett rating of 101 and below)

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Line Horse
Battleground
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 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    Absolute Value       3    54.5    1    0.00     9.0   83    64           64    -19
2    Battleground         5    54.0    2    0.40     0.0   87    87           87    +0
3    Flying Bull          4    62.0    3    5.50     5.5   100   86           90    -10
4    Indian War Dance     3    50.0    4    10.75    9.0   55    55           55    +0
5    Arlington Action     6    54.0    5    18.75    0.0   84    81           81    -3
99   United Council       5    53.5    99   0.00     0.0   -     80           80    +0
99   Out Of Your League   5    50.0    99   0.00     0.0   -     73           73    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Absolute Value 83 84 64 +20 9.0 -
2 Battleground Line 87 92 87 +5 0.0
3 Flying Bull 100 98 90 +8 5.5 -
4 Indian War Dance 55 58 55 +3 9.0 -
5 Arlington Action 84 73 81 -8 0.0 -
99 United Council - 100 80 +20 0.0 -
99 Out Of Your League - 77 73 +4 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