Official NHA Assessment

Race 8: BETWAY GOT THE GREENLIGHT STAKES (Grade 3) (3 year olds)

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Line Horse
The Africa House
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
8 / 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    Main Defender        4    60.0    1    0.00     2.5   121   110          110   -11
2    Barbaresco           4    58.0    2    1.10     2.5   91    110          110   +19
3    Hotarubi             4    58.0    3    4.25     2.5   95    107          107   +12
4    The Africa House     4    58.0    4    5.75     2.5   106   106          106   +0
5    Gimmeanotherchance   4    58.0    5    7.25     2.5   112   106          106   -6
6    Princeofgreen        2    58.0    6    8.25     0.0   92    111          111   +19
7    Champagne Cocktail   4    55.5    7    8.75     2.5   102   101          101   -1
8    Royal Edition        4    58.0    8    14.00    2.5   88    106          106   +18
9    Wyzeact              4    58.0    9    15.00    2.5   97    106          106   +9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Main Defender 121 130 110 +20 2.5 -
2 Barbaresco 91 116 110 +6 2.5 -
3 Hotarubi 95 98 107 -9 2.5 -
4 The Africa House Line 106 93 106 -13 2.5
5 Gimmeanotherchance 112 96 106 -10 2.5 -
6 Princeofgreen 92 87 111 -24 0.0 -
7 Champagne Cocktail 102 98 101 -3 2.5 -
8 Royal Edition 88 92 106 -14 2.5 -
9 Wyzeact 97 86 106 -20 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