Official NHA Assessment

Race 5: 4RACING.TV MR 70 HANDICAP (Open)

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Line Horse
Kayla's Dream
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
5 / 12
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    The Brief            3    59.5    1    0.00     1.5   72    63           72    +0
2    Romeo's Magic        7    58.5    2    0.20     0.0   67    64           64    -3
3    Kayla's Dream        5    57.5    3    3.25     0.0   65    65           65    +0
4    San Quintin          6    56.0    4    3.50     0.0   65    62           62    -3
5    Pottinger            3    60.0    5    4.50     1.5   73    65           65    -8
6    Mingshi              4    56.5    6    5.00     0.5   63    59           59    -4
7    Arlington Action     6    59.5    7    6.00     0.0   72    66           66    -6
8    Fort Alado           5    53.0    8    6.50     0.0   56    53           53    -3
9    August Leaves        5    60.0    9    9.00     0.0   70    67           67    -3
10   Orus Apollo          4    51.0    10   9.25     0.5   55    48           48    -7
99   My True North        4    56.0    99   0.00     0.5   -     58           58    +0
99   So Long Spring       7    55.0    99   0.00     0.0   -     57           57    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 The Brief 72 90 72 +18 1.5 -
2 Romeo's Magic 67 73 64 +9 0.0 -
3 Kayla's Dream Line 65 61 65 -4 0.0
4 San Quintin 65 58 62 -4 0.0 -
5 Pottinger 73 70 65 +5 1.5 -
6 Mingshi 63 56 59 -3 0.5 -
7 Arlington Action 72 73 66 +7 0.0 -
8 Fort Alado 56 48 53 -5 0.0 -
9 August Leaves 70 60 67 -7 0.0 -
10 Orus Apollo 55 46 48 -2 0.5 -
99 My True North - 61 58 +3 0.5 -
99 So Long Spring - 51 57 -6 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