Official NHA Assessment

Race 2: #YOUCANBETONUS! MAIDEN HANDICAP (For Maidens with 3 or more runs)

Back to Race
Line Horse
Carnarvon
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
3 / 7
Within 2 points
Significant Diffs
2 / 7
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    King Bluetooth       2    54.0    1    0.00     7.0   68    68           68    +0
2    Underdog             3    53.0    2    3.10     10.5  52    59           59    +7
3    Storm Burst          2    52.0    3    3.30     7.0   62    64           64    +2
4    Carnarvon            2    60.0    4    3.90     7.0   80    80           80    +0
5    Captain Frank        2    58.5    5    5.90     7.0   77    77           77    +0
6    New Life             3    55.5    6    6.10     10.5  57    64           64    +7
7    Sassy Lassie         2    52.0    7    10.80    7.0   56    64           64    +8
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 King Bluetooth 68 53 68 -15 7.0 -
2 Underdog 52 58 59 -1 10.5 -
3 Storm Burst 62 63 64 -1 7.0 -
4 Carnarvon Line 80 78 80 -2 7.0
5 Captain Frank 77 72 77 -5 7.0 -
6 New Life 57 38 64 -26 10.5 -
7 Sassy Lassie 56 59 64 -5 7.0 -
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