Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING THURSDAY 4 JULY MR 80 HANDICAP (Open)

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Line Horse
Open Highway
Reference for assessment
Exact Matches
0 / 16
Calculated = Official
Close Matches
5 / 16
Within 2 points
Significant Diffs
7 / 16
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    Southern Blaze       3    59.0    1    0.00     1.5   78    76           78    +0
2    Golden Pavilion      2    56.0    2    1.20     0.0   75    77           77    +2
3    Open Highway         4    60.5    3    1.50     0.5   84    84           84    +0
4    The Playboy Bomber   4    55.5    4    2.50     0.5   82    73           73    -9
5    Gimmealight          3    59.5    5    2.90     1.5   79    79           79    +0
6    Vitellius            5    58.5    6    3.60     0.0   77    79           79    +2
7    Care Taker           4    58.0    7    4.00     0.5   79    77           77    -2
8    Feel All Right       2    55.5    8    4.10     0.0   74    73           73    -1
9    Peace Treaty         3    53.5    9    4.35     1.5   88    65           78    -10
10   Laughing William     5    55.5    10   5.35     0.0   71    72           72    +1
11   Sovereigns Call      4    56.0    11   6.35     0.5   75    72           72    -3
12   Archimides           3    54.0    12   7.35     1.5   68    66           66    -2
13   Tamil Tigress        2    58.5    13   7.85     0.0   80    78           78    -2
14   Courageous Cat       3    60.5    14   15.85    1.5   81    79           79    -2
99   Super Agra           4    52.0    99   0.00     0.5   -     64           64    +0
99   Vava Vegas           5    52.0    99   0.00     0.0   -     65           65    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Southern Blaze 78 89 78 +11 1.5 -
2 Golden Pavilion 75 95 77 +18 0.0 -
3 Open Highway Line 84 94 84 +10 0.5
4 The Playboy Bomber 82 88 73 +15 0.5 -
5 Gimmealight 79 77 79 -2 1.5 -
6 Vitellius 77 73 79 -6 0.0 -
7 Care Taker 79 76 77 -1 0.5 -
8 Feel All Right 74 70 73 -3 0.0 -
9 Peace Treaty 88 69 78 -9 1.5 -
10 Laughing William 71 75 72 +3 0.0 -
11 Sovereigns Call 75 70 72 -2 0.5 -
12 Archimides 68 70 66 +4 1.5 -
13 Tamil Tigress 80 77 78 -1 0.0 -
14 Courageous Cat 81 81 79 +2 1.5 -
99 Super Agra - 60 64 -4 0.5 -
99 Vava Vegas - 58 65 -7 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