Official NHA Assessment

Race 5: TAB 4RACING APP OPEN MAIDEN (For Maidens)

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Line Horse
Satellite World
Reference for assessment
Exact Matches
2 / 8
Calculated = Official
Close Matches
2 / 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    Terminal Velocity    2    60.0    1    0.00     0.0   67    82           73    +6
2    Satellite World      3    53.0    2    5.50     5.0   58    58           58    +0
3    Playmaker            3    58.0    3    8.75     5.0   68    68           68    +0
4    Night In Japan       3    53.0    4    11.25    5.0   51    58           58    +7
5    Straight Red         3    53.0    5    15.00    5.0   51    58           58    +7
6    Gimme The Best       2    50.5    6    20.50    0.0   51    63           63    +12
7    Am Still Winning     3    51.0    7    20.60    5.0   54    54           54    +0
8    Fort Impreza         3    57.5    8    20.70    5.0   58    67           67    +9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Terminal Velocity 67 68 73 -5 0.0 -
2 Satellite World Line 58 58 58 ✓ Match 5.0
3 Playmaker 68 68 68 ✓ Match 5.0 -
4 Night In Japan 51 49 58 -9 5.0 -
5 Straight Red 51 51 58 -7 5.0 -
6 Gimme The Best 51 51 63 -12 0.0 -
7 Am Still Winning 54 51 54 -3 5.0 -
8 Fort Impreza 58 56 67 -11 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