Official NHA Assessment

Race 2: MERIT RATED 60 HANDICAP (Open)

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Line Horse
Mill Creek
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
4 / 8
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    Emily's Song (ZIM)   4    55.5    1    0.00     1.5   50    43           50    +0
2    Assume               3    53.5    2    1.50     2.5   53    40           43    -10
3    Mill Creek           7    57.0    3    2.00     0.0   52    52           52    +0
4    Sweet Opportunity    3    55.5    4    4.50     2.5   57    41           47    -10
5    Val Gardena          5    55.0    5    5.50     0.0   50    45           45    -5
6    Hawi                 4    55.5    6    7.00     1.5   51    43           43    -8
7    Aneksi               4    57.5    7    9.00     1.5   63    47           53    -10
8    Nautical Storm       3    57.0    8    99.00    2.5   60    44           50    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Emily's Song (ZIM) 50 66 50 +16 1.5 -
2 Assume 53 58 43 +15 2.5 -
3 Mill Creek Line 52 55 52 +3 0.0
4 Sweet Opportunity 57 52 47 +5 2.5 -
5 Val Gardena 50 39 45 -6 0.0 -
6 Hawi 51 47 43 +4 1.5 -
7 Aneksi 63 50 53 -3 1.5 -
8 Nautical Storm 60 60 50 +10 2.5 -
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