Official NHA Assessment

Race 4: RACING240 FOR RACING. FOR YOU MR 72 HANDICAP (Open)

Line Horse
Puerto Plata (ARG)
Reference for assessment
Exact Matches
0 / 16
Calculated = Official
Close Matches
1 / 16
Within 2 points
Significant Diffs
11 / 16
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    Harold The Duke      3    58.0    1    0.00     8.5   68    62           68    +0
2    Karoo Gold           3    59.0    2    0.25     8.5   72    64           64    -8
3    Puerto Plata (ARG)   3    58.5    3    1.00     8.5   69    69           69    +0
4    Alado's Pride        7    61.5    4    2.25     0.0   75    91           91    +16
5    Slainte Mhath        4    57.5    5    2.50     5.0   69    72           72    +3
6    San Quintin          6    54.5    6    3.00     0.0   61    75           75    +14
7    Head Gardener        3    55.5    7    4.25     8.5   63    59           59    -4
8    Downing Seven        5    64.0    8    4.75     0.0   80    91           91    +11
9    Walt Whitman         2    60.0    9    5.25     0.0   89    83           83    -6
10   Nothingelsematters   5    58.5    10   7.25     0.0   69    80           80    +11
11   Light Without        4    62.0    11   8.50     5.0   76    77           77    +1
12   Military Man         2    57.5    12   9.75     0.0   69    78           78    +9
13   Island Master        3    56.5    13   13.75    8.5   67    59           59    -8
14   Rastignac            4    58.0    14   22.50    5.0   70    69           69    -1
15   Crimson Comet        3    54.5    15   23.50    8.5   78    55           68    -10
99   The Inkosana         3    58.0    99   0.00     8.5   -     62           62    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Harold The Duke 68 86 68 +18 8.5 -
2 Karoo Gold 72 67 64 +3 8.5 -
3 Puerto Plata (ARG) Line 69 68 69 -1 8.5
4 Alado's Pride 75 73 91 -18 0.0 -
5 Slainte Mhath 69 81 72 +9 5.0 -
6 San Quintin 61 58 75 -17 0.0 -
7 Head Gardener 63 66 59 +7 8.5 -
8 Downing Seven 80 69 91 -22 0.0 -
9 Walt Whitman 89 88 83 +5 0.0 -
10 Nothingelsematters 69 73 80 -7 0.0 -
11 Light Without 76 71 77 -6 5.0 -
12 Military Man 69 65 78 -13 0.0 -
13 Island Master 67 67 59 +8 8.5 -
14 Rastignac 70 58 69 -11 5.0 -
15 Crimson Comet 78 72 68 +4 8.5 -
99 The Inkosana - 67 62 +5 8.5 -
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