Official NHA Assessment

Race 6: RACEHORSE OWNERS ASSOCIATION FILLIES GUINEAS PLATE (For 3 year-old Fillies)

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Line Horse
Public Benefit
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
3 / 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    Joy And Peace        4    58.0    1    0.00     3.5   86    77           77    -9
2    Back For More        4    58.0    2    3.25     3.5   82    79           79    -3
3    Public Benefit       2    60.0    3    4.00     0.0   89    89           89    +0
4    Idita                4    58.0    4    4.05     3.5   92    78           82    -10
5    Global Rush          2    58.0    5    5.30     0.0   73    84           84    +11
6    Exclusively Yours    2    58.0    6    13.05    0.0   78    84           84    +6
7    Jambo Sana           2    58.0    7    16.30    0.0   68    84           84    +16
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Joy And Peace 86 110 77 +33 3.5 -
2 Back For More 82 75 79 -4 3.5 -
3 Public Benefit Line 89 86 89 -3 0.0
4 Idita 92 79 82 -3 3.5 -
5 Global Rush 73 82 84 -2 0.0 -
6 Exclusively Yours 78 73 84 -11 0.0 -
7 Jambo Sana 68 74 84 -10 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