Official NHA Assessment

Race 5: MERIT RATED 75 HANDICAP (Open)

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Line Horse
Tulip Way
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
3 / 7
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    Shesalegend          4    55.0    1    0.00     2.5   65    57           65    +0
2    Magic Mike           6    60.0    2    0.10     0.0   75    72           72    -3
3    Viscountess Vivien   6    52.0    3    1.60     0.0   59    59           59    +0
4    Tulip Way            5    60.0    4    1.85     0.0   75    75           75    +0
5    Kursk (AUS)          6    54.0    5    3.10     0.0   63    62           62    -1
6    Moxie                6    51.0    6    5.60     0.0   65    54           55    -10
7    Bam Bam Pebbles      6    58.5    7    6.35     0.0   72    69           69    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Shesalegend 65 74 65 +9 2.5 -
2 Magic Mike 75 67 72 -5 0.0 -
3 Viscountess Vivien 59 72 59 +13 0.0 -
4 Tulip Way Line 75 80 75 +5 0.0
5 Kursk (AUS) 63 67 62 +5 0.0 -
6 Moxie 65 62 55 +7 0.0 -
7 Bam Bam Pebbles 72 69 69 ✓ Match 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