Official NHA Assessment

Race 1: #THISISRACING WELCOMES YOU WORK RIDERS MAIDEN PLATE (For all Maidens)

Back to Race
Line Horse
Central City
Reference for assessment
Exact Matches
2 / 7
Calculated = Official
Close Matches
4 / 7
Within 2 points
Significant Diffs
3 / 7
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Central City         5    57.0    1    0.00     0.0   81    81           81    +0
2    Michelin Star        3    60.0    2    0.20     9.5   65    68           68    +3
3    Spring Will Come     3    60.0    3    0.50     9.5   49    73           73    +24
4    Alabaster            3    60.0    4    5.25     9.5   55    68           68    +13
5    Warrior The Brave    2    57.0    5    19.00    0.0   46    81           81    +35
99   Carnelo              6    60.0    99   0.00     0.0   -     87           87    +0
99   I'm In Love          3    57.0    99   0.00     9.5   -     62           62    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Central City Line 81 81 81 ✓ Match 0.0
2 Michelin Star 65 68 68 ✓ Match 9.5 -
3 Spring Will Come 49 72 73 -1 9.5 -
4 Alabaster 55 53 68 -15 9.5 -
5 Warrior The Brave 46 50 81 -31 0.0 -
99 Carnelo - 75 87 -12 0.0 -
99 I'm In Love - 63 62 +1 9.5 -
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