Official NHA Assessment

Race 4: D & K PLUMBING & ALUMINIUM GUTTERS MAIDEN PLATE (For all Maidens)

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Line Horse
Axel Collins
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
6 / 10
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Aspoestertjie        5    57.5    1    0.00     0.0   70    71           70    +0
2    Twice The Trinity    3    60.0    2    1.50     6.0   -     64           64    +64
3    Axel Collins         5    60.0    3    2.00     0.0   76    76           76    +0
4    Swiss Paradise       3    55.0    4    2.70     6.0   -     54           54    +54
5    Buster Keaton        3    60.0    5    3.80     6.0   63    64           64    +1
6    Sirnihaallongsword   4    60.0    6    3.90     7.0   53    62           62    +9
7    Fine Admiral         3    60.0    7    4.40     6.0   -     64           64    +64
8    Vivir Mi Vida        2    55.0    8    5.30     4.0   56    58           58    +2
9    Vickers Viscount     3    60.0    9    18.30    6.0   -     64           64    +64
99   Last Survivor        2    60.0    99   0.00     4.0   -     68           68    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Aspoestertjie 70 68 70 -2 0.0 -
2 Twice The Trinity - 72 64 +8 6.0 -
3 Axel Collins Line 76 55 76 -21 0.0
4 Swiss Paradise - 60 54 +6 6.0 -
5 Buster Keaton 63 60 64 -4 6.0 -
6 Sirnihaallongsword 53 69 62 +7 7.0 -
7 Fine Admiral - 73 64 +9 6.0 -
8 Vivir Mi Vida 56 60 58 +2 4.0 -
9 Vickers Viscount - 31 64 -33 6.0 -
99 Last Survivor - 64 68 -4 4.0 -
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