Official NHA Assessment

Race 2: RACEHORSE OWNERS ASSOCIATION CLASSIFIED STAKES (For horses with nett rating of 66 and below)

Back to Race
Line Horse
Guarding The Wall
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
2 / 6
Within 2 points
Significant Diffs
4 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Jambo Sana           2    52.5    1    0.00     6.5   51    59           57    +6
2    Bennelong Point      2    56.0    2    0.50     6.5   58    66           66    +8
3    Guarding The Wall    4    60.0    3    1.75     11.0  65    65           65    +0
4    Absolu Noir          8    52.0    4    3.00     0.0   48    71           71    +23
5    Winning Captain      3    58.5    5    6.00     9.5   66    65           65    -1
6    Mister Whistle       4    52.5    6    9.00     11.0  48    50           50    +2
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jambo Sana 51 74 57 +17 6.5 -
2 Bennelong Point 58 58 66 -8 6.5 -
3 Guarding The Wall Line 65 67 65 +2 11.0
4 Absolu Noir 48 50 71 -21 0.0 -
5 Winning Captain 66 54 65 -11 9.5 -
6 Mister Whistle 48 52 50 +2 11.0 -
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