Official NHA Assessment

Race 8: NEXT MEETING 20 APRIL KENILWORTH MR 80 HANDICAP (Open)

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Line Horse
Dragonfly
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
10 / 12
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Dragonfly            3    61.5    1    0.00     3.0   87    87           87    +0
2    Superior Leader      4    53.5    2    0.75     3.5   66    70           70    +4
3    Admiralty Arch       3    57.5    3    1.75     3.0   79    79           79    +0
4    Queen's Wood         3    59.5    4    3.00     3.0   83    83           83    +0
5    Baltimore Jack       5    57.5    5    3.75     0.0   75    85           85    +10
6    Benjamin             4    61.0    6    4.15     3.5   82    85           85    +3
7    Infinite Peace       3    58.5    7    5.15     3.0   81    81           81    +0
8    Sky God              3    55.0    8    5.35     3.0   74    74           74    +0
9    Ovation              3    54.5    9    6.60     3.0   72    73           73    +1
10   Debonair             3    58.5    10   6.80     3.0   81    81           81    +0
11   Bramhall Phoenix     3    57.0    11   99.99    3.0   78    78           78    +0
99   Moon Rock            7    61.0    99   0.00     0.0   -     92           92    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dragonfly Line 87 71 87 -16 3.0
2 Superior Leader 66 64 70 -6 3.5 -
3 Admiralty Arch 79 77 79 -2 3.0 -
4 Queen's Wood 83 74 83 -9 3.0 -
5 Baltimore Jack 75 72 85 -13 0.0 -
6 Benjamin 82 75 85 -10 3.5 -
7 Infinite Peace 81 72 81 -9 3.0 -
8 Sky God 74 62 74 -12 3.0 -
9 Ovation 72 65 73 -8 3.0 -
10 Debonair 81 73 81 -8 3.0 -
11 Bramhall Phoenix 78 78 78 ✓ Match 3.0 -
99 Moon Rock - 69 92 -23 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