Official NHA Assessment

Race 4: GALLOP TV YOUTUBE CHANNEL MAIDEN PLATE (For all Maidens)

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Line Horse
Rollo The Viking
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
7 / 9
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    Rainbow Of Roses     3    56.5    1    0.00     9.5   63    79           69    +6
2    Rollo The Viking     3    56.0    2    9.80     9.5   78    78           78    +0
3    New Frontier         2    53.5    3    13.20    0.0   80    92           92    +12
4    Summer Lightning     3    56.0    4    22.50    9.5   46    78           78    +32
5    Walkie Talkie        2    52.5    5    25.80    0.0   72    90           90    +18
6    Syrian Steel         2    52.5    6    28.70    0.0   72    90           90    +18
7    Tidal Rock           4    58.5    7    99.99    6.0   -     90           90    +90
99   Magic Hat Trick      3    60.0    99   0.00     9.5   -     86           86    +0
99   Richardthefearless   3    60.0    99   0.00     9.5   -     86           86    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rainbow Of Roses 63 66 69 -3 9.5 -
2 Rollo The Viking Line 78 96 78 +18 9.5
3 New Frontier 80 77 92 -15 0.0 -
4 Summer Lightning 46 46 78 -32 9.5 -
5 Walkie Talkie 72 72 90 -18 0.0 -
6 Syrian Steel 72 72 90 -18 0.0 -
7 Tidal Rock - - 90 -90 6.0 -
99 Magic Hat Trick - 61 86 -25 9.5 -
99 Richardthefearless - 83 86 -3 9.5 -
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