Official NHA Assessment

Race 9: NEXT VAAL RACEMEETING TUESDAY 25 JULY CLASSIFIED STAKES (For horses with nett rating of 75 and below)

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Line Horse
Fort Lauderdale
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 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    Lulu's Boy           5    56.0    1    0.00     0.0   67    67           67    +0
2    Fully Loaded         5    60.0    2    0.90     0.0   74    75           75    +1
3    Run For Isla         3    52.5    3    2.00     1.5   63    57           57    -6
4    Fort Lauderdale      2    60.0    4    2.40     0.5   74    74           74    +0
5    Irontail             4    54.0    5    2.75     2.0   63    59           59    -4
6    After Hours          7    58.0    6    3.50     0.0   68    71           71    +3
7    Written In Stone     9    52.0    7    4.00     0.0   57    59           59    +2
8    Carnelo              6    52.0    8    4.25     0.0   59    59           59    +0
9    Brosnan              2    60.0    9    6.25     0.5   73    74           74    +1
99   Camerata             2    52.5    99   0.00     0.5   -     59           59    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lulu's Boy 67 71 67 +4 0.0 -
2 Fully Loaded 74 94 75 +19 0.0 -
3 Run For Isla 63 58 57 +1 1.5 -
4 Fort Lauderdale Line 74 85 74 +11 0.5
5 Irontail 63 64 59 +5 2.0 -
6 After Hours 68 79 71 +8 0.0 -
7 Written In Stone 57 67 59 +8 0.0 -
8 Carnelo 59 75 59 +16 0.0 -
9 Brosnan 73 75 74 +1 0.5 -
99 Camerata - 49 59 -10 0.5 -
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