Official NHA Assessment

Race 2: MERIT RATED 65 HANDICAP (Open)

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Line Horse
Days Gone By
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
0 / 6
Within 2 points
Significant Diffs
4 / 6
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    Deposition           6    59.5    1    0.00     0.0   63    70           63    +0
2    Days Gone By         3    57.5    2    1.50     5.0   59    59           59    +0
3    Kursk (AUS)          6    60.0    3    5.50     0.0   64    71           71    +7
4    Chetan               3    55.0    4    9.00     5.0   54    51           51    -3
5    Qunetra              4    58.0    5    10.00    2.5   60    62           62    +2
99   Sun Bird             3    59.0    99   0.00     5.0   -     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 Deposition 63 68 63 +5 0.0 -
2 Days Gone By Line 59 51 59 -8 5.0
3 Kursk (AUS) 64 67 71 -4 0.0 -
4 Chetan 54 45 51 -6 5.0 -
5 Qunetra 60 83 62 +21 2.5 -
99 Sun Bird - 87 59 +28 5.0 -
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