Official NHA Assessment

Race 3: GALLOP TV OPEN MAIDEN (For all Maidens)

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Line Horse
Messalina
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
6 / 8
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    Messalina            3    59.0    1    0.00     2.5   75    75           75    +0
2    Apache Ag            4    60.5    2    4.80     1.5   -     80           80    +80
3    Dancing On A Cloud   3    60.5    3    5.50     2.5   -     78           78    +78
4    Samuel Longsword     3    53.0    4    6.40     2.5   61    63           63    +2
5    Angel Boy J          3    56.5    5    22.10    2.5   -     70           70    +70
6    Mumsy's Glory        3    56.5    6    22.70    2.5   -     70           70    +70
99   Tre Uno              3    60.5    99   0.00     2.5   -     78           78    +0
99   Twocantango          3    55.5    99   0.00     2.5   -     68           68    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Messalina Line 75 71 75 -4 2.5
2 Apache Ag - 65 80 -15 1.5 -
3 Dancing On A Cloud - 70 78 -8 2.5 -
4 Samuel Longsword 61 56 63 -7 2.5 -
5 Angel Boy J - 49 70 -21 2.5 -
6 Mumsy's Glory - 33 70 -37 2.5 -
99 Tre Uno - - 78 -78 2.5 -
99 Twocantango - 69 68 +1 2.5 -
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