Official NHA Assessment

Race 6: TAB 4RACING APP FM 76 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Special Variety
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
7 / 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    Captain Peg          5    59.5    1    0.00     0.0   92    93           92    +0
2    Princess Philippa    3    58.0    2    1.00     8.5   73    77           77    +4
3    Special Variety      3    59.0    3    5.90     8.5   75    75           75    +0
4    Mamaquera            5    58.0    4    6.10     0.0   72    90           90    +18
5    Dancing Arabian      4    60.0    5    7.10     6.0   76    82           82    +6
6    Scottadito           3    55.0    6    11.35    8.5   67    67           67    +0
7    Big City Girl        4    54.5    7    13.10    6.0   65    71           71    +6
8    Red Carpet Girl      3    54.5    8    13.50    8.5   66    66           66    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Captain Peg 92 100 92 +8 0.0 -
2 Princess Philippa 73 85 77 +8 8.5 -
3 Special Variety Line 75 74 75 -1 8.5
4 Mamaquera 72 60 90 -30 0.0 -
5 Dancing Arabian 76 60 82 -22 6.0 -
6 Scottadito 67 55 67 -12 8.5 -
7 Big City Girl 65 59 71 -12 6.0 -
8 Red Carpet Girl 66 55 66 -11 8.5 -
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