Official NHA Assessment

Race 3: #THISISRACING MAIDEN PLATE (For all Maidens)

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Line Horse
Joe Harman
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
3 / 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    Drengs Ferry         3    60.0    1    0.00     6.0   71    47           47    -24
2    Joe Harman           4    60.0    2    0.50     3.0   59    59           59    +0
3    Cape Point           4    60.0    3    2.75     3.0   56    56           56    +0
4    Khal Drogo           4    60.0    4    6.50     3.0   51    53           53    +2
5    Arctic Advance       3    60.0    5    20.00    6.0   65    47           55    -10
6    Apples And Things    3    56.5    6    27.50    6.0   50    40           40    -10
7    Lions Tail           3    60.0    7    99.99    6.0   45    47           47    +2
99   Aeneas               3    60.0    99   0.00     6.0   -     47           47    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Drengs Ferry 71 62 47 +15 6.0 -
2 Joe Harman Line 59 54 59 -5 3.0
3 Cape Point 56 61 56 +5 3.0 -
4 Khal Drogo 51 46 53 -7 3.0 -
5 Arctic Advance 65 58 55 +3 6.0 -
6 Apples And Things 50 45 40 +5 6.0 -
7 Lions Tail 45 45 47 -2 6.0 -
99 Aeneas - 82 47 +35 6.0 -
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