Official NHA Assessment

Race 5: BETWAY MR 80 HANDICAP (Open)

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Line Horse
American Rebel
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
6 / 10
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    Battleofbarberton    3    59.5    1    0.00     9.5   81    73           81    +0
2    Claw                 4    59.5    2    0.25     6.0   81    80           80    -1
3    American Rebel       4    57.0    3    4.50     6.0   76    76           76    +0
4    Master Tik Tok       5    55.0    4    5.00     0.0   70    83           83    +13
5    Diesel's Shadow      4    57.5    5    5.20     6.0   77    76           76    -1
6    Fifth Of July        5    55.5    6    5.60     0.0   71    84           84    +13
7    Romeo's Magic        7    55.0    7    5.75     0.0   70    83           83    +13
8    Taxhaven             4    59.5    8    26.75    6.0   81    80           80    -1
99   Celtic Rush          5    58.5    99   0.00     0.0   -     90           90    +0
99   Banha Bridge         5    60.5    99   0.00     0.0   -     94           94    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Battleofbarberton 81 86 81 +5 9.5 -
2 Claw 81 91 80 +11 6.0 -
3 American Rebel Line 76 81 76 +5 6.0
4 Master Tik Tok 70 80 83 -3 0.0 -
5 Diesel's Shadow 77 80 76 +4 6.0 -
6 Fifth Of July 71 63 84 -21 0.0 -
7 Romeo's Magic 70 73 83 -10 0.0 -
8 Taxhaven 81 96 80 +16 6.0 -
99 Celtic Rush - 69 90 -21 0.0 -
99 Banha Bridge - 70 94 -24 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