Official NHA Assessment

Race 4: VANGUARD MARINE & LEISURE MR 82 HANDICAP (Open)

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Line Horse
Eiger Sanction
Reference for assessment
Exact Matches
2 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
7 / 11
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    Titans Of War        2    52.0    1    0.00     0.0   84    79           84    +0
2    Eiger Sanction       3    58.5    2    0.90     9.5   79    79           79    +0
3    American Rebel       4    59.5    3    1.00     6.0   84    88           88    +4
4    Street Art           3    61.5    4    3.50     9.5   85    82           82    -3
5    Gimmeachoice         3    60.5    5    5.75     9.5   83    77           77    -6
6    Sky Pillar Rock      3    56.5    6    5.95     9.5   77    69           69    -8
7    Eiffel Tower         4    58.0    7    6.95     6.0   78    79           79    +1
8    Blurred Vision       3    52.0    8    7.05     9.5   68    60           60    -8
9    Robert Browning      3    55.5    9    8.05     9.5   75    67           67    -8
10   Strewn Sky           2    57.5    10   10.65    0.0   77    90           90    +13
11   Diesel's Shadow      4    58.5    11   20.75    6.0   79    80           80    +1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Titans Of War 84 91 84 +7 0.0 -
2 Eiger Sanction Line 79 79 79 ✓ Match 9.5
3 American Rebel 84 81 88 -7 6.0 -
4 Street Art 85 78 82 -4 9.5 -
5 Gimmeachoice 83 87 77 +10 9.5 -
6 Sky Pillar Rock 77 81 69 +12 9.5 -
7 Eiffel Tower 78 69 79 -10 6.0 -
8 Blurred Vision 68 56 60 -4 9.5 -
9 Robert Browning 75 87 67 +20 9.5 -
10 Strewn Sky 77 69 90 -21 0.0 -
11 Diesel's Shadow 79 80 80 ✓ Match 6.0 -
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