Official NHA Assessment

Race 5: GOLD CIRCLE RACING YOUTUBE CHANNEL MR 92 HANDICAP (Open)

Line Horse
Antigonus
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
6 / 11
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    Spring High          4    54.0    1    0.00     2.5   80    74           80    +0
2    Al's My Daddy        5    52.0    2    0.20     0.0   75    75           75    +0
3    Antigonus            6    56.0    3    0.80     0.0   87    87           87    +0
3    Sniper Shot          7    60.5    3    0.80     0.0   93    96           96    +3
5    Macara               4    59.0    5    2.60     2.5   90    86           86    -4
6    Via Salaria          6    58.5    6    3.00     0.0   89    90           90    +1
7    Mr Gonzales          4    55.0    7    3.60     2.5   82    77           77    -5
8    Artic Tune           4    54.0    8    4.70     2.5   80    74           74    -6
9    Love The View        4    56.5    9    5.20     2.5   85    79           79    -6
99   Quick Star           6    56.0    99   0.00     0.0   -     83           83    +0
99   Go Man Go            5    57.0    99   0.00     0.0   -     85           85    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Spring High 80 79 80 -1 2.5 -
2 Al's My Daddy 75 70 75 -5 0.0 -
3 Antigonus Line 87 81 87 -6 0.0
3 Sniper Shot 93 91 96 -5 0.0 -
5 Macara 90 101 86 +15 2.5 -
6 Via Salaria 89 82 90 -8 0.0 -
7 Mr Gonzales 82 97 77 +20 2.5 -
8 Artic Tune 80 81 74 +7 2.5 -
9 Love The View 85 82 79 +3 2.5 -
99 Quick Star - 60 83 -23 0.0 -
99 Go Man Go - 85 85 ✓ Match 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