Official NHA Assessment

Race 5: PINNACLE PLATE 100 (Race for all horses)

Back to Race
Line Horse
Raining Again
Reference for assessment
Exact Matches
0 / 4
Calculated = Official
Close Matches
0 / 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    River Power          3    60.0    1    0.00     1.0   98    92           92    -6
2    Raining Again        6    54.0    2    4.00     0.0   83    83           83    +0
3    Var Aglow            5    60.0    3    4.50     0.0   96    94           94    -2
4    Ultimate Jewel       5    56.0    4    5.50     0.0   88    86           86    -2
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 River Power 98 97 92 +5 1.0 -
2 Raining Again Line 83 73 83 -10 0.0
3 Var Aglow 96 84 94 -10 0.0 -
4 Ultimate Jewel 88 80 86 -6 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