Official NHA Assessment

Race 4: TABGOLD CARD CALL MR 66 HANDICAP (Open)

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Line Horse
Vengeance Forever
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    Riccardo             7    60.0    1    0.00     0.0   66    83           66    +0
2    Vengeance Forever    3    55.0    2    3.20     10.0  56    56           56    +0
3    Columbia Road        3    53.5    3    4.20     10.0  53    52           52    -1
4    Head Gardener        3    54.5    4    4.50     10.0  54    53           53    -1
5    Let Em Go            5    57.5    5    4.80     0.0   61    78           78    +17
6    Bayview Express      5    60.0    6    4.90     0.0   66    83           83    +17
7    Safe Space           5    57.5    7    9.40     0.0   71    78           78    +7
8    We All Chomies       5    52.0    8    12.20    0.0   48    67           67    +19
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Riccardo 66 68 66 +2 0.0 -
2 Vengeance Forever Line 56 51 56 -5 10.0
3 Columbia Road 53 54 52 +2 10.0 -
4 Head Gardener 54 66 53 +13 10.0 -
5 Let Em Go 61 57 78 -21 0.0 -
6 Bayview Express 66 62 83 -21 0.0 -
7 Safe Space 71 83 78 +5 0.0 -
8 We All Chomies 48 54 67 -13 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