Official NHA Assessment

Race 7: TAB 4RACING APP FM 83 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Bureau des Legende
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
8 / 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    Princess Philippa    3    56.5    1    0.00     8.0   77    75           77    +0
2    Dancing Arabian      4    56.5    2    0.50     5.0   76    86           86    +10
3    Bureau des Legende   3    59.0    3    2.50     8.0   82    82           82    +0
4    Golden Aspen         6    59.0    4    3.25     0.0   82    98           98    +16
5    Prairie Falcon       3    55.5    5    4.50     8.0   75    73           73    -2
6    Paton's Tears        4    60.0    6    4.75     5.0   83    88           88    +5
7    Rimaah               2    54.5    7    5.00     0.0   88    87           87    -1
8    Special Variety      3    55.5    8    8.50     8.0   75    73           73    -2
9    Mckenna Skye         3    59.5    9    10.00    8.0   83    81           81    -2
10   Splash Of Green      3    54.5    10   22.00    8.0   73    71           71    -2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Princess Philippa 77 85 77 +8 8.0 -
2 Dancing Arabian 76 60 86 -26 5.0 -
3 Bureau des Legende Line 82 97 82 +15 8.0
4 Golden Aspen 82 66 98 -32 0.0 -
5 Prairie Falcon 75 78 73 +5 8.0 -
6 Paton's Tears 83 78 88 -10 5.0 -
7 Rimaah 88 70 87 -17 0.0 -
8 Special Variety 75 74 73 +1 8.0 -
9 Mckenna Skye 83 69 81 -12 8.0 -
10 Splash Of Green 73 56 71 -15 8.0 -
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