Official NHA Assessment

Race 6: CHAMPAGNE STAKES (Grade 3) (For Horses 3-years and older)

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Line Horse
Bereave
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
8 / 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    Rio Querari          5    62.0    1    0.00     0.0   122   123          123   +1
2    We're Jamming        5    57.5    2    0.20     0.0   109   114          114   +5
3    Bereave              4    60.5    3    0.25     0.0   120   120          120   +0
4    Speed Machine        4    57.0    4    0.65     0.0   108   113          113   +5
5    Going Up             3    54.5    5    1.90     2.5   105   103          103   -2
6    Mr Cobbs             5    56.5    6    2.40     0.0   104   112          112   +8
7    Sachdev              5    56.5    7    3.15     0.0   103   112          112   +9
8    Countdown            2    57.0    8    3.20     1.5   109   110          110   +1
9    Sonic Burst          4    53.0    9    9.45     0.0   89    105          105   +16
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rio Querari 122 116 123 -7 0.0 -
2 We're Jamming 109 108 114 -6 0.0 -
3 Bereave Line 120 111 120 -9 0.0
4 Speed Machine 108 104 113 -9 0.0 -
5 Going Up 105 110 103 +7 2.5 -
6 Mr Cobbs 104 106 112 -6 0.0 -
7 Sachdev 103 101 112 -11 0.0 -
8 Countdown 109 106 110 -4 1.5 -
9 Sonic Burst 89 81 105 -24 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