Official NHA Assessment

Race 8: NEXT MEETING 23 MARCH DURBANVILLE MR 79 HANDICAP (Open)

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Line Horse
What A Man
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
4 / 10
Within 2 points
Significant Diffs
4 / 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    Trivial Matter       3    60.0    1    0.00     3.5   84    71           84    +0
2    What A Man           5    57.5    2    0.50     0.0   73    73           73    +0
3    Silver Salmon        3    58.5    3    1.00     3.5   81    68           71    -10
4    Persistance          3    56.0    4    1.30     3.5   75    63           65    -10
5    Birdie And Bogie     3    54.5    5    1.80     3.5   73    60           63    -10
6    Wordsworth           7    55.0    6    6.05     0.0   69    68           68    -1
7    Bonanza              3    58.5    7    7.30     3.5   81    68           71    -10
8    Fighter              5    56.0    8    7.60     0.0   71    70           70    -1
9    Magic Sailor         7    53.5    9    10.85    0.0   66    65           65    -1
99   Ferrando             3    55.5    99   0.00     3.5   -     62           62    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Trivial Matter 84 82 84 -2 3.5 -
2 What A Man Line 73 74 73 +1 0.0
3 Silver Salmon 81 65 71 -6 3.5 -
4 Persistance 75 50 65 -15 3.5 -
5 Birdie And Bogie 73 68 63 +5 3.5 -
6 Wordsworth 69 65 68 -3 0.0 -
7 Bonanza 81 57 71 -14 3.5 -
8 Fighter 71 69 70 -1 0.0 -
9 Magic Sailor 66 63 65 -2 0.0 -
99 Ferrando - 74 62 +12 3.5 -
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