Official NHA Assessment

Race 3: WWW.TAB4RACING.COM MAIDEN PLATE (For all Maidens)

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Line Horse
Battleground
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
10 / 11
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    American Star        3    58.0    1    0.00     7.0   -     59           6     +6
2    Battleground         5    58.0    2    2.25     0.0   76    76           76    +0
3    Fast Duty            3    58.0    3    2.75     7.0   -     61           61    +61
4    Harold The Duke      3    60.0    4    5.00     7.0   48    63           63    +15
5    Prime Example        2    58.0    5    5.25     0.0   71    73           73    +2
6    War Medal            3    58.0    6    7.25     7.0   -     59           59    +59
7    To The King          3    58.0    7    7.30     7.0   65    59           59    -6
8    Pedasos              3    58.0    8    8.00     7.0   -     59           59    +59
9    Big Dreamer          2    58.0    9    8.75     0.0   52    73           73    +21
10   Lincoln County       3    60.0    10   17.00    7.0   41    63           63    +22
99   Royal Raphael        3    58.0    99   0.00     7.0   -     59           59    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 American Star - 83 6 +77 7.0 -
2 Battleground Line 76 92 76 +16 0.0
3 Fast Duty - 67 61 +6 7.0 -
4 Harold The Duke 48 86 63 +23 7.0 -
5 Prime Example 71 93 73 +20 0.0 -
6 War Medal - 67 59 +8 7.0 -
7 To The King 65 66 59 +7 7.0 -
8 Pedasos - 53 59 -6 7.0 -
9 Big Dreamer 52 52 73 -21 0.0 -
10 Lincoln County 41 41 63 -22 7.0 -
99 Royal Raphael - 54 59 -5 7.0 -
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