Official NHA Assessment

Race 2: PLAY SOCCER 6, 10 AND 13 MAIDEN PLATE (For Maidens R15000 Win bonus ROA Members)

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Line Horse
Joe Harman
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
5 / 7
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    Medlers Tart         2    56.5    1    0.00     0.0   69    52           52    -17
2    Popping Crease       2    60.0    2    6.25     0.0   71    59           61    -10
3    Joe Harman           4    60.0    3    7.50     3.0   53    53           53    +0
4    Belle's First Wave   3    60.0    4    11.75    6.0   58    47           48    -10
5    Space Explorer       2    60.0    5    14.00    0.0   67    59           59    -8
6    Jack In The Box      5    60.0    6    21.25    0.0   58    59           59    +1
7    Lead A Merry Dance   3    60.0    7    21.50    6.0   50    47           47    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Medlers Tart 69 92 52 +40 0.0 -
2 Popping Crease 71 74 61 +13 0.0 -
3 Joe Harman Line 53 54 53 +1 3.0
4 Belle's First Wave 58 51 48 +3 6.0 -
5 Space Explorer 67 67 59 +8 0.0 -
6 Jack In The Box 58 53 59 -6 0.0 -
7 Lead A Merry Dance 50 40 47 -7 6.0 -
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