Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING THURSDAY 31 JULY FM 66 HANDICAP (F & M) (For Fillies and Mares)

Back to Race
Line Horse
Red Amber
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
11 / 11
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Northern Kitten      3    54.0    1    0.00     1.0   54    68           54    +0
2    Can't Catch Me       5    53.0    2    0.40     0.0   52    73           73    +21
3    Red Amber            2    59.5    3    2.10     0.0   84    84           84    +0
4    Golden Aspen         6    59.0    4    2.70     0.0   67    82           82    +15
5    Lady Loxton          4    56.0    5    3.70     0.5   58    74           74    +16
6    Sheets And Goggles   3    58.5    6    3.75     1.0   65    78           78    +13
7    Perini Palace        4    55.0    7    6.45     0.5   59    71           71    +12
8    Count Your Chances   5    52.5    8    7.25     0.0   59    67           67    +8
9    Gimme A Storm        3    61.5    9    7.30     1.0   71    83           83    +12
10   Like A Prayer        3    60.0    10   8.00     1.0   68    80           80    +12
11   Ghostbuster          4    59.5    11   13.25    0.5   65    80           80    +15
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Northern Kitten 54 67 54 +13 1.0 -
2 Can't Catch Me 52 58 73 -15 0.0 -
3 Red Amber Line 84 71 84 -13 0.0
4 Golden Aspen 67 66 82 -16 0.0 -
5 Lady Loxton 58 57 74 -17 0.5 -
6 Sheets And Goggles 65 63 78 -15 1.0 -
7 Perini Palace 59 56 71 -15 0.5 -
8 Count Your Chances 59 51 67 -16 0.0 -
9 Gimme A Storm 71 58 83 -25 1.0 -
10 Like A Prayer 68 63 80 -17 1.0 -
11 Ghostbuster 65 57 80 -23 0.5 -
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