Official NHA Assessment

Race 6: 4RACING.TV PINNACLE STAKES (F & M) (For Fillies and Mares)

Back to Race
Line Horse
Treasure Hunt
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
5 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Luna Halo            4    62.0    1    0.00     0.5   106   89           89    -17
2    Rose Of Bayeux       3    58.0    2    1.00     1.5   88    83           83    -5
3    Pinnacle             2    59.5    3    1.25     0.0   94    89           89    -5
4    Treasure Hunt        6    55.0    4    1.75     0.0   79    79           79    +0
5    Unyielding           2    55.0    5    2.00     0.0   78    79           79    +1
6    October Fair         2    54.0    6    2.50     0.0   75    76           76    +1
7    Strange Magic        5    55.0    7    3.25     0.0   78    78           78    +0
8    Amazing Colours      4    58.0    8    4.75     0.5   92    81           82    -10
9    Sun Spectacular      4    53.5    9    6.50     0.5   77    72           72    -5
10   Lady Mistico         2    56.5    10   9.00     0.0   82    79           79    -3
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Luna Halo 106 106 89 +17 0.5 -
2 Rose Of Bayeux 88 77 83 -6 1.5 -
3 Pinnacle 94 93 89 +4 0.0 -
4 Treasure Hunt Line 79 80 79 +1 0.0
5 Unyielding 78 88 79 +9 0.0 -
6 October Fair 75 74 76 -2 0.0 -
7 Strange Magic 78 69 78 -9 0.0 -
8 Amazing Colours 92 59 82 -23 0.5 -
9 Sun Spectacular 77 69 72 -3 0.5 -
10 Lady Mistico 82 75 79 -4 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