Official NHA Assessment

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

Back to Race
Line Horse
Back To Basics
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
1 / 13
Within 2 points
Significant Diffs
10 / 13
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Back To Basics       3    60.0    1    0.00     5.0   69    69           69    +0
2    Black Burner         3    60.0    2    0.75     5.0   62    69           69    +7
3    Captain Persia       3    60.0    3    3.00     5.0   72    69           69    -3
4    Orgetorix            4    60.0    4    3.25     6.0   55    67           67    +12
5    Aspiringtoreign      3    60.0    5    4.00     5.0   -     69           69    +69
6    Final Declaration    3    60.0    6    5.50     5.0   -     69           69    +69
7    Real Churchy         3    60.0    7    6.00     5.0   -     69           69    +69
8    Coming In Hot        3    60.0    8    6.75     5.0   77    69           69    -8
9    Mactavish            3    60.0    9    7.00     5.0   -     69           69    +69
10   Abayyaan             3    60.0    10   10.25    5.0   72    69           69    -3
11   Thornton Creek       4    60.0    11   12.75    6.0   -     67           67    +67
12   Equerry              3    57.5    12   14.25    5.0   39    64           64    +25
99   Knock Twice          3    60.0    99   0.00     5.0   -     69           69    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Back To Basics Line 69 72 69 +3 5.0
2 Black Burner 62 60 69 -9 5.0 -
3 Captain Persia 72 66 69 -3 5.0 -
4 Orgetorix 55 65 67 -2 6.0 -
5 Aspiringtoreign - 61 69 -8 5.0 -
6 Final Declaration - 60 69 -9 5.0 -
7 Real Churchy - 50 69 -19 5.0 -
8 Coming In Hot 77 76 69 +7 5.0 -
9 Mactavish - 58 69 -11 5.0 -
10 Abayyaan 72 94 69 +25 5.0 -
11 Thornton Creek - 30 67 -37 6.0 -
12 Equerry 39 50 64 -14 5.0 -
99 Knock Twice - 55 69 -14 5.0 -
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