Official NHA Assessment

Race 9: GALLOP TV CLASS 5 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 70)

Back to Race
Line Horse
Du Maurier
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
4 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Match That           2    62.5    1    0.00     5.0   85    85           85    +0
2    True Horizon         4    52.5    2    0.40     9.0   55    57           57    +2
3    Du Maurier           2    59.5    3    0.90     5.0   79    79           79    +0
4    Midnight Lady        3    60.5    4    1.30     7.5   81    76           76    -5
4    Paralegal            2    59.5    4    1.30     5.0   79    79           79    +0
6    Splash Of Colour     2    60.5    6    1.80     5.0   81    81           81    +0
7    Im The Buzz          5    59.5    7    2.10     0.0   69    89           89    +20
99   Royal Lytham         4    54.0    99   0.00     9.0   -     60           60    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Match That 85 88 85 +3 5.0 -
2 True Horizon 55 60 57 +3 9.0 -
3 Du Maurier Line 79 72 79 -7 5.0
4 Midnight Lady 81 80 76 +4 7.5 -
4 Paralegal 79 69 79 -10 5.0 -
6 Splash Of Colour 81 76 81 -5 5.0 -
7 Im The Buzz 69 68 89 -21 0.0 -
99 Royal Lytham - 69 60 +9 9.0 -
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