Official NHA Assessment

Race 4: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 NOVICE HANDICAP (Maidens & 1 time winners)

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Line Horse
Buddy Boy
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 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    Merryweather         2    54.0    1    0.00     0.0   86    96           86    +0
2    Buddy Boy            3    54.5    2    0.05     5.0   87    87           87    +0
3    Mocha Frappe         2    52.5    3    0.45     0.0   73    98           98    +25
4    Express Yourself     2    54.5    4    1.95     0.0   77    100          100   +23
5    Blizzard Quest       2    59.0    5    9.95     0.0   96    106          106   +10
6    The Merciful         5    52.0    6    13.25    0.0   54    92           92    +38
99   Singleton Sam        2    60.0    99   0.00     0.0   -     108          108   +0
99   Zip Code             3    55.5    99   0.00     5.0   -     89           89    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Merryweather 86 88 86 +2 0.0 -
2 Buddy Boy Line 87 85 87 -2 5.0
3 Mocha Frappe 73 68 98 -30 0.0 -
4 Express Yourself 77 74 100 -26 0.0 -
5 Blizzard Quest 96 92 106 -14 0.0 -
6 The Merciful 54 54 92 -38 0.0 -
99 Singleton Sam - 98 108 -10 0.0 -
99 Zip Code - 77 89 -12 5.0 -
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