Official NHA Assessment

Race 7: TASH FIRE ENGINEERS C STAKES (For All Horses with a nett rating of 83 & below)

Back to Race
Line Horse
Trafalgar Square
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
4 / 10
Within 2 points
Significant Diffs
6 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Trafalgar Square     6    57.0    1    0.00     0.0   70    70           70    +0
2    Ayuwi Yuwi           2    59.0    2    0.40     3.0   83    68           73    -10
3    Rafa's Boy           2    58.5    3    0.70     3.0   70    67           67    -3
4    Rugger Lover         2    59.0    4    0.95     3.0   76    68           68    -8
5    Ibhele               3    60.0    5    1.00     4.5   87    67           77    -10
6    B Fiftytwo           4    57.5    6    1.10     5.0   77    61           67    -10
7    Vision To Achieve    4    57.5    7    3.20     5.0   75    61           65    -10
8    Lady Of Vix          2    59.0    8    11.60    3.0   83    68           73    -10
99   Ultra Quick          6    58.5    99   0.00     0.0   -     73           73    +0
99   Music Is Life        2    57.0    99   0.00     3.0   -     64           64    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Trafalgar Square Line 70 69 70 -1 0.0
2 Ayuwi Yuwi 83 71 73 -2 3.0 -
3 Rafa's Boy 70 79 67 +12 3.0 -
4 Rugger Lover 76 79 68 +11 3.0 -
5 Ibhele 87 70 77 -7 4.5 -
6 B Fiftytwo 77 68 67 +1 5.0 -
7 Vision To Achieve 75 87 65 +22 5.0 -
8 Lady Of Vix 83 80 73 +7 3.0 -
99 Ultra Quick - 71 73 -2 0.0 -
99 Music Is Life - 71 64 +7 3.0 -
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