Official NHA Assessment

Race 1: #YOUCANBETONUS! MAIDEN PLATE (For all Maidens)

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Line Horse
Old Fashioned
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
5 / 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    Old Fashioned        3    60.0    1    0.00     7.5   68    68           68    +0
2    Taking A Risk        2    56.5    2    3.70     5.0   72    66           66    -6
3    Rockabilly           3    59.0    3    4.90     7.5   -     66           66    +66
4    Power Of Tiger       3    57.5    4    5.20     7.5   46    63           63    +17
5    Hawksdale            2    56.5    5    5.50     5.0   77    66           67    -10
6    Sky On Fire          4    56.0    6    8.60     9.0   63    57           57    -6
7    Forest Drum          3    58.5    7    9.50     7.5   48    65           65    +17
8    Jabberwocky          4    60.0    8    9.90     9.0   61    65           65    +4
99   Silver Glitter       3    56.5    99   0.00     7.5   -     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 Old Fashioned Line 68 76 68 +8 7.5
2 Taking A Risk 72 70 66 +4 5.0 -
3 Rockabilly - 74 66 +8 7.5 -
4 Power Of Tiger 46 61 63 -2 7.5 -
5 Hawksdale 77 68 67 +1 5.0 -
6 Sky On Fire 63 60 57 +3 9.0 -
7 Forest Drum 48 48 65 -17 7.5 -
8 Jabberwocky 61 53 65 -12 9.0 -
99 Silver Glitter - - 61 -61 7.5 -
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