Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (For all Maidens)

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Line Horse
Real Stunner
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
7 / 11
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    Luwak                2    58.0    1    0.00     0.0   -     79           6     +6
2    Real Stunner         3    60.0    2    1.40     8.0   70    70           70    +0
3    Naretoi              2    60.0    3    5.20     0.0   66    83           83    +17
4    Afterburn            3    60.0    4    6.10     8.0   67    67           67    +0
5    Shadowline           3    55.0    5    6.30     8.0   -     57           57    +57
6    Best Candidate       2    58.0    6    7.80     0.0   66    79           79    +13
7    Red Sunrise          3    58.0    7    8.10     8.0   -     63           63    +63
8    Beach Walker         2    58.0    8    9.80     0.0   80    79           79    -1
9    Storm Burst          2    58.0    9    21.50    0.0   75    79           79    +4
10   Flying On My Mind    3    55.5    10   36.75    8.0   -     58           58    +58
11   Rissiepit            3    55.0    11   38.75    8.0   -     57           57    +57
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Luwak - 85 6 +79 0.0 -
2 Real Stunner Line 70 74 70 +4 8.0
3 Naretoi 66 73 83 -10 0.0 -
4 Afterburn 67 62 67 -5 8.0 -
5 Shadowline - 78 57 +21 8.0 -
6 Best Candidate 66 66 79 -13 0.0 -
7 Red Sunrise - 79 63 +16 8.0 -
8 Beach Walker 80 75 79 -4 0.0 -
9 Storm Burst 75 63 79 -16 0.0 -
10 Flying On My Mind - 20 58 -38 8.0 -
11 Rissiepit - 60 57 +3 8.0 -
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