Official NHA Assessment

Race 6: TRACK & BALL GAMING MR 67 HANDICAP (Open)

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Line Horse
Ravens Sword
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
6 / 9
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    Guiseppi's Song      4    56.0    1    0.00     1.0   59    57           59    +0
2    Twosidestoastory     3    56.0    2    0.60     2.0   62    60           60    -2
3    Ravens Sword         3    60.0    3    0.80     2.0   67    67           67    +0
4    Lou Lou The Legend   3    53.0    4    1.10     2.0   58    53           53    -5
5    Whorly Whorly        7    62.0    5    3.40     0.0   71    72           72    +1
6    Allaroundtheworld (  3    57.5    6    4.45     2.0   62    58           58    -4
7    Action Stations      2    57.5    7    4.55     0.0   70    62           62    -8
8    Hippocrates          3    56.5    8    4.75     2.0   60    56           56    -4
9    Capetown Affair      5    57.0    9    7.45     0.0   61    61           61    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Guiseppi's Song 59 60 59 +1 1.0 -
2 Twosidestoastory 62 62 60 +2 2.0 -
3 Ravens Sword Line 67 53 67 -14 2.0
4 Lou Lou The Legend 58 59 53 +6 2.0 -
5 Whorly Whorly 71 78 72 +6 0.0 -
6 Allaroundtheworld (GB) 62 73 58 +15 2.0 -
7 Action Stations 70 71 62 +9 0.0 -
8 Hippocrates 60 68 56 +12 2.0 -
9 Capetown Affair 61 59 61 -2 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