Official NHA Assessment

Race 7: CHAMPION APPRENTICE: TRENT MAYHEW MR 72 APPRENTICE HANDICAP (Open)

Back to Race
Line Horse
Flag Bearer
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
4 / 11
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Lady Sabrina         3    61.5    1    0.00     1.5   78    80           78    +0
2    Libeccio             5    55.0    2    1.30     0.0   67    73           73    +6
3    Flag Bearer          3    53.5    3    1.80     1.5   67    67           67    +0
4    Perini Palace        4    52.0    4    2.05     0.5   61    66           66    +5
5    War Reporter         3    57.5    5    3.55     1.5   78    73           73    -5
6    Callaburn            2    48.5    6    4.25     0.0   57    58           58    +1
7    Stop The Traffic     4    51.5    7    4.75     0.5   63    62           62    -1
8    Carnelo              6    57.0    8    9.00     0.0   66    74           74    +8
9    Panning Gold         3    57.5    9    9.25     1.5   78    72           72    -6
10   Unsolved Riddle      3    58.5    10   10.75    1.5   72    74           74    +2
11   Gloria Mundi         2    54.5    11   14.50    0.0   72    69           69    -3
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lady Sabrina 78 82 78 +4 1.5 -
2 Libeccio 67 62 73 -11 0.0 -
3 Flag Bearer Line 67 60 67 -7 1.5
4 Perini Palace 61 56 66 -10 0.5 -
5 War Reporter 78 72 73 -1 1.5 -
6 Callaburn 57 52 58 -6 0.0 -
7 Stop The Traffic 63 65 62 +3 0.5 -
8 Carnelo 66 75 74 +1 0.0 -
9 Panning Gold 78 68 72 -4 1.5 -
10 Unsolved Riddle 72 77 74 +3 1.5 -
11 Gloria Mundi 72 66 69 -3 0.0 -
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