Official NHA Assessment

Race 5: SA HOME LOANS MR 73 HANDICAP (Open)

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Line Horse
Shotgun Willie
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
7 / 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    Riccardo             7    58.5    1    0.00     0.0   73    84           73    +0
2    Shotgun Willie       3    58.0    2    0.50     9.5   69    69           69    +0
3    Galaxy Explorer      4    55.5    3    0.70     6.0   66    71           71    +5
4    Power Star           2    54.5    4    0.75     0.0   62    80           80    +18
5    The Mikado           3    57.0    5    2.15     9.5   86    65           76    -10
6    Connoisseur          4    57.0    6    2.55     6.0   69    71           71    +2
7    Jazz Festival        5    57.5    7    3.25     0.0   68    84           84    +16
8    Mount Meru           4    52.5    8    3.65     6.0   50    61           61    +11
9    Famous And Rich      2    57.0    9    7.45     0.0   75    81           81    +6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Riccardo 73 68 73 -5 0.0 -
2 Shotgun Willie Line 69 66 69 -3 9.5
3 Galaxy Explorer 66 60 71 -11 6.0 -
4 Power Star 62 58 80 -22 0.0 -
5 The Mikado 86 84 76 +8 9.5 -
6 Connoisseur 69 56 71 -15 6.0 -
7 Jazz Festival 68 70 84 -14 0.0 -
8 Mount Meru 50 50 61 -11 6.0 -
9 Famous And Rich 75 66 81 -15 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