Official NHA Assessment

Race 6: PINNACLE PLATE 105 (Race for all horses.)

Back to Race
Line Horse
Brianna
Reference for assessment
Exact Matches
1 / 4
Calculated = Official
Close Matches
1 / 4
Within 2 points
Significant Diffs
3 / 4
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Brianna              4    57.5    1    0.00     0.5   103   103          103   +0
2    Ideal View           6    60.0    2    1.00     0.0   101   113          113   +12
3    Jet Mirage           3    60.0    3    2.00     1.5   103   109          109   +6
4    Abayyaan             3    60.0    4    9.00     1.5   99    106          106   +7
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Brianna Line 103 103 103 ✓ Match 0.5
2 Ideal View 101 90 113 -23 0.0 -
3 Jet Mirage 103 100 109 -9 1.5 -
4 Abayyaan 99 94 106 -12 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