Official NHA Assessment

Race 5: TRACK & BALL GAMING MR 65 HANDICAP (Open)

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Line Horse
Winter Waves
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 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    Captain Who          4    60.0    1    0.00     3.5   65    63           65    +0
2    Winter Waves         7    58.0    2    2.00     0.0   69    69           69    +0
3    Giambattista         3    59.5    3    2.30     6.0   64    59           59    -5
4    Magwinya             2    54.5    4    2.35     0.0   54    61           61    +7
5    Oh My Word Its Roy   3    52.0    5    2.40     6.0   49    44           44    -5
6    High Velocity        4    55.0    6    4.00     3.5   55    54           54    -1
7    Lord Edward          2    53.0    7    6.10     0.0   54    56           56    +2
99   Fever                5    53.5    99   0.00     0.0   -     57           57    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Captain Who 65 65 65 ✓ Match 3.5 -
2 Winter Waves Line 69 77 69 +8 0.0
3 Giambattista 64 87 59 +28 6.0 -
4 Magwinya 54 50 61 -11 0.0 -
5 Oh My Word Its Roy 49 50 44 +6 6.0 -
6 High Velocity 55 50 54 -4 3.5 -
7 Lord Edward 54 52 56 -4 0.0 -
99 Fever - 52 57 -5 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