Official NHA Assessment

Race 3: THE COME RACING AT BORROWDALE PARK MERIT RATED 74 HANDICAP (Open)

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Line Horse
Bello Grosso
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
6 / 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    Cutback              6    58.5    1    0.00     0.0   71    68           71    +0
2    Walking Thru Time    3    58.0    2    1.75     3.5   70    63           63    -7
3    Bello Grosso         2    54.5    3    2.00     0.0   63    63           63    +0
4    Coffeeberry          5    60.0    4    2.10     0.0   74    74           74    +0
5    Bruce's Spirit       6    55.5    5    7.85     0.0   65    62           62    -3
6    Karvani              7    57.0    6    11.35    0.0   68    65           65    -3
99   Captive Moon         6    52.5    99   0.00     0.0   -     56           56    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Cutback 71 63 71 -8 0.0 -
2 Walking Thru Time 70 73 63 +10 3.5 -
3 Bello Grosso Line 63 72 63 +9 0.0
4 Coffeeberry 74 72 74 -2 0.0 -
5 Bruce's Spirit 65 55 62 -7 0.0 -
6 Karvani 68 73 65 +8 0.0 -
99 Captive Moon - 75 56 +19 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