Official NHA Assessment

Race 4: CELEBRATING CENTURION MEMBER SANDY ARUNDEL'S BIRTHDAY CLASS 4 (Open. Benchmark at 60.0kg = 80)

Back to Race
Line Horse
Kebonalesedi
Reference for assessment
Exact Matches
1 / 14
Calculated = Official
Close Matches
5 / 14
Within 2 points
Significant Diffs
3 / 14
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Industrialstrength   4    58.0    1    0.00     0.5   76    77           77    +1
2    Boogiefied (AUS)     4    61.5    2    1.75     0.5   83    87           87    +4
3    Kebonalesedi         5    52.5    3    2.25     0.0   70    70           70    +0
4    Happy Days           2    59.5    4    3.25     0.0   82    83           83    +1
5    Dalmeny Factor       3    54.0    5    3.35     1.0   71    69           69    -2
6    Noon Day Gun         4    56.0    6    4.35     0.5   72    73           73    +1
7    Kelp Forest          5    62.0    7    5.85     0.0   84    86           86    +2
8    United Nation        3    54.0    8    5.90     1.0   70    68           68    -2
9    Father Christmas     3    57.5    9    6.30     1.0   78    75           75    -3
10   Devil A Saint        4    57.0    10   6.80     0.5   74    75           75    +1
11   Heal And Soul        3    59.0    11   8.80     1.0   81    78           78    -3
12   Fibonacci            2    57.5    12   13.55    0.0   75    77           77    +2
99   Pilot Flame          4    60.5    99   0.00     0.5   -     82           82    +0
99   Winter Pearl         6    55.0    99   0.00     0.0   -     72           72    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Industrialstrength 76 82 77 +5 0.5 -
2 Boogiefied (AUS) 83 90 87 +3 0.5 -
3 Kebonalesedi Line 70 67 70 -3 0.0
4 Happy Days 82 81 83 -2 0.0 -
5 Dalmeny Factor 71 69 69 ✓ Match 1.0 -
6 Noon Day Gun 72 66 73 -7 0.5 -
7 Kelp Forest 84 81 86 -5 0.0 -
8 United Nation 70 89 68 +21 1.0 -
9 Father Christmas 78 79 75 +4 1.0 -
10 Devil A Saint 74 69 75 -6 0.5 -
11 Heal And Soul 81 79 78 +1 1.0 -
12 Fibonacci 75 73 77 -4 0.0 -
99 Pilot Flame - 81 82 -1 0.5 -
99 Winter Pearl - 71 72 -1 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