Official NHA Assessment

Race 9: BLUEGRASS FODDER & SF SHAVINGS MR 84 HANDICAP (Open)

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Line Horse
Prince Of Kildare
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
4 / 10
Within 2 points
Significant Diffs
6 / 10
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    Juniper Green        4    51.0    1    0.00     11.0  74    66           74    +0
2    It's Personal        3    58.0    2    0.30     9.5   80    83           83    +3
3    Prince Of Kildare    4    52.5    3    1.30     11.0  69    69           69    +0
4    Hemisphere           3    58.5    4    1.40     9.5   81    84           84    +3
5    Vibe Sa              2    60.5    5    5.40     6.5   85    94           94    +9
6    Drivelikeamaster     3    57.0    6    5.80     9.5   81    81           81    +0
7    Cian The Conqueror   5    60.5    7    8.80     0.0   85    107          107   +22
8    Tiger Storm          3    57.0    8    9.05     9.5   78    81           81    +3
9    What A Tiger         5    55.5    9    10.65    0.0   75    97           97    +22
10   Bumps Last Grind     2    56.5    10   10.75    6.5   77    86           86    +9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Juniper Green 74 87 74 +13 11.0 -
2 It's Personal 80 85 83 +2 9.5 -
3 Prince Of Kildare Line 69 80 69 +11 11.0
4 Hemisphere 81 83 84 -1 9.5 -
5 Vibe Sa 85 92 94 -2 6.5 -
6 Drivelikeamaster 81 81 81 ✓ Match 9.5 -
7 Cian The Conqueror 85 81 107 -26 0.0 -
8 Tiger Storm 78 69 81 -12 9.5 -
9 What A Tiger 75 71 97 -26 0.0 -
10 Bumps Last Grind 77 75 86 -11 6.5 -
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