Official NHA Assessment

Race 7: TAKE A BET WINA NUMBA NUMBA MR 102 HANDICAP (Open)

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Line Horse
Guy Gibson
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
5 / 9
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    Greeting My Master   2    58.0    1    0.00     0.0   99    99           99    +0
2    Guy Gibson           2    59.5    2    4.50     0.0   102   102          102   +0
3    Jury's Out           2    55.0    3    5.95     0.0   93    93           93    +0
4    Princeofgreen        2    52.0    4    6.00     0.0   84    87           87    +3
5    Silent War           3    60.0    5    8.25     8.0   102   87           92    -10
6    The Africa House     4    57.0    6    8.55     5.0   97    87           87    -10
7    Jordan               4    57.0    7    9.00     5.0   97    87           87    -10
8    Master Christmas     4    57.5    8    12.00    5.0   98    88           88    -10
99   Mastership           2    55.0    99   0.00     0.0   -     93           93    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Greeting My Master 99 110 99 +11 0.0 -
2 Guy Gibson Line 102 99 102 -3 0.0
3 Jury's Out 93 85 93 -8 0.0 -
4 Princeofgreen 84 87 87 ✓ Match 0.0 -
5 Silent War 102 91 92 -1 8.0 -
6 The Africa House 97 93 87 +6 5.0 -
7 Jordan 97 88 87 +1 5.0 -
8 Master Christmas 98 94 88 +6 5.0 -
99 Mastership - 105 93 +12 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