Official NHA Assessment

Race 3: 4RACING THANKS AND APPRECIATES TONY PETER RACING STABLE GRADUATION PLATE (For 1 & 2 Time Winners & Maidens)

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Line Horse
Power Broker
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
5 / 7
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    Back In Business     3    60.0    1    0.00     1.5   86    83           78    -8
2    Power Broker         2    60.0    2    1.25     0.5   85    85           85    +0
3    Southern Skies       3    54.0    3    4.50     1.5   96    71           86    -10
4    Bowl First           3    57.0    4    12.00    1.5   78    77           77    -1
5    Zoombomber           2    52.5    5    12.05    0.5   -     70           70    +70
6    Rock On Captain      3    53.0    6    12.25    1.5   59    69           69    +10
99   Pontiac              3    56.5    99   0.00     1.5   -     76           76    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Back In Business 86 114 78 +36 1.5 -
2 Power Broker Line 85 102 85 +17 0.5
3 Southern Skies 96 97 86 +11 1.5 -
4 Bowl First 78 78 77 +1 1.5 -
5 Zoombomber - 60 70 -10 0.5 -
6 Rock On Captain 59 57 69 -12 1.5 -
99 Pontiac - 79 76 +3 1.5 -
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