Official NHA Assessment

Race 4: GALLOP TV PROGRESS PLATE (For Maidens, 1, 2 & 3 time winners)

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Line Horse
Gimmelightning
Reference for assessment
Exact Matches
1 / 6
Calculated = Official
Close Matches
2 / 6
Within 2 points
Significant Diffs
4 / 6
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    Jet Force            3    58.5    1    0.00     8.0   87    71           71    -16
2    Absolutely Yes       2    58.5    2    0.40     0.0   103   92           93    -10
3    Gimmelightning       2    61.0    3    0.45     0.0   97    97           97    +0
4    Captain West         3    61.5    4    0.50     8.0   103   82           93    -10
5    Air Raid             2    61.0    5    2.25     0.0   100   95           95    -5
99   Roland Garros        2    55.5    99   0.00     0.0   -     81           81    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jet Force 87 117 71 +46 8.0 -
2 Absolutely Yes 103 99 93 +6 0.0 -
3 Gimmelightning Line 97 95 97 -2 0.0
4 Captain West 103 102 93 +9 8.0 -
5 Air Raid 100 95 95 ✓ Match 0.0 -
99 Roland Garros - 108 81 +27 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