Official NHA Assessment

Race 1: AUSTEN SMITH MAIDEN PLATE (For all Maidens)

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Line Horse
Prince Florian
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
2 / 14
Within 2 points
Significant Diffs
12 / 14
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    Deputy Chief         3    60.0    1    0.00     4.0   71    76           76    +5
2    Prince Florian       3    57.5    2    1.00     4.0   75    75           75    +0
3    White Seahorse       2    60.0    3    1.40     0.0   76    87           87    +11
4    Vencedor             2    58.5    4    3.60     0.0   76    82           82    +6
5    O Space O            2    60.0    5    3.75     0.0   78    85           85    +7
6    Limelight Legend     3    60.0    6    5.05     4.0   -     76           76    +76
7    Parliament Square    3    60.0    7    6.95     4.0   66    76           76    +10
8    Mind How You Go      3    56.0    8    7.75     4.0   -     68           68    +68
9    Cuzzie               3    60.0    9    11.45    4.0   -     76           76    +76
10   Claymore             2    60.0    10   15.25    0.0   62    84           84    +22
11   Twocantango          3    60.0    11   15.55    4.0   68    76           76    +8
12   Samuel Longsword     3    60.0    12   21.55    4.0   61    76           76    +15
99   Tickalox             4    60.0    99   0.00     2.0   -     80           80    +0
99   Off The Charts       2    57.5    99   0.00     0.0   -     79           79    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Deputy Chief 71 64 76 -12 4.0 -
2 Prince Florian Line 75 73 75 -2 4.0
3 White Seahorse 76 81 87 -6 0.0 -
4 Vencedor 76 67 82 -15 0.0 -
5 O Space O 78 59 85 -26 0.0 -
6 Limelight Legend - 75 76 -1 4.0 -
7 Parliament Square 66 53 76 -23 4.0 -
8 Mind How You Go - 59 68 -9 4.0 -
9 Cuzzie - 54 76 -22 4.0 -
10 Claymore 62 58 84 -26 0.0 -
11 Twocantango 68 69 76 -7 4.0 -
12 Samuel Longsword 61 56 76 -20 4.0 -
99 Tickalox - 67 80 -13 2.0 -
99 Off The Charts - 65 79 -14 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