Official NHA Assessment

Race 5: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MR 80 HANDICAP (Open)

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Line Horse
Peace Treaty
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
8 / 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    Princeofgreen        2    62.0    1    0.00     0.0   84    104          84    +0
2    On Target            3    55.5    2    0.40     6.0   83    84           84    +1
3    Peace Treaty         3    57.0    3    0.80     6.0   86    86           86    +0
4    Guerilla Warfare     3    55.5    4    2.00     6.0   83    82           82    -1
5    Orange County        2    59.0    5    2.10     0.0   90    101          101   +11
6    Copper John          4    55.0    6    3.80     3.0   69    85           85    +16
7    Weather Wizard       3    60.5    7    8.00     6.0   81    89           89    +8
8    Bloomington          3    61.5    8    8.10     6.0   83    91           91    +8
99   Whispers Of War (AU  7    53.5    99   0.00     0.0   -     87           87    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Princeofgreen 84 87 84 +3 0.0 -
2 On Target 83 95 84 +11 6.0 -
3 Peace Treaty Line 86 69 86 -17 6.0
4 Guerilla Warfare 83 75 82 -7 6.0 -
5 Orange County 90 77 101 -24 0.0 -
6 Copper John 69 61 85 -24 3.0 -
7 Weather Wizard 81 81 89 -8 6.0 -
8 Bloomington 83 69 91 -22 6.0 -
99 Whispers Of War (AUS) - 64 87 -23 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