Official NHA Assessment

Race 8: HORSE OF THE YEAR EIGHT ON EIGHTEEN D STAKES (For All Horses with a nett rating of 69 & below)

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Line Horse
Tres Chic
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
6 / 10
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    Black Path           6    53.5    1    0.00     0.0   51    66           57    +6
2    Tres Chic            4    53.5    2    0.40     6.0   59    59           59    +0
2    District Master      3    59.0    2    0.40     8.5   60    65           65    +5
4    Ischyro              3    60.0    4    2.40     8.5   59    64           64    +5
5    Midway               3    61.5    5    3.65     8.5   63    66           66    +3
6    Ozark                4    61.5    6    5.40     6.0   64    70           70    +6
7    Miss Mackie          3    53.5    7    6.15     8.5   55    49           49    -6
8    Gripen               4    61.5    8    7.15     6.0   62    70           70    +8
9    Hang Out The Stars   5    57.5    9    13.65    0.0   59    74           74    +15
99   Mela Strength        3    58.5    99   0.00     8.5   -     59           59    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Black Path 51 58 57 +1 0.0 -
2 Tres Chic Line 59 52 59 -7 6.0
2 District Master 60 73 65 +8 8.5 -
4 Ischyro 59 54 64 -10 8.5 -
5 Midway 63 65 66 -1 8.5 -
6 Ozark 64 61 70 -9 6.0 -
7 Miss Mackie 55 49 49 ✓ Match 8.5 -
8 Gripen 62 58 70 -12 6.0 -
9 Hang Out The Stars 59 58 74 -16 0.0 -
99 Mela Strength - 63 59 +4 8.5 -
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