Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING THURSDAY 25 JULY MR 86 HANDICAP (Open)

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Line Horse
Open Highway
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
2 / 13
Within 2 points
Significant Diffs
10 / 13
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    Thunee Playa         4    53.5    1    0.00     0.5   80    72           80    +0
2    Gimmeachoice         3    55.0    2    1.00     1.0   78    78           78    +0
3    Open Highway         4    58.0    3    1.30     0.5   84    84           84    +0
4    Max The Magician     4    58.5    4    1.35     0.5   85    85           85    +0
5    Sacambaya            2    54.5    5    1.75     0.0   77    78           78    +1
6    Whispers Of War (AU  7    58.5    6    3.00     0.0   83    85           85    +2
7    Mount Darwin         3    60.0    7    3.75     1.0   88    85           85    -3
8    Captain Of Grit      3    59.0    8    9.00     1.0   84    82           82    -2
9    Banha Bridge         5    58.0    9    9.50     0.0   82    82           82    +0
10   Stormy Winter        8    52.0    10   12.00    0.0   78    70           70    -8
99   Elembee              5    59.0    99   0.00     0.0   -     84           84    +0
99   Moola Man            4    59.0    99   0.00     0.5   -     83           83    +0
99   Trident King         3    60.0    99   0.00     1.0   -     84           84    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Thunee Playa 80 107 80 +27 0.5 -
2 Gimmeachoice 78 87 78 +9 1.0 -
3 Open Highway Line 84 94 84 +10 0.5
4 Max The Magician 85 95 85 +10 0.5 -
5 Sacambaya 77 72 78 -6 0.0 -
6 Whispers Of War (AUS) 83 64 85 -21 0.0 -
7 Mount Darwin 88 81 85 -4 1.0 -
8 Captain Of Grit 84 84 82 +2 1.0 -
9 Banha Bridge 82 70 82 -12 0.0 -
10 Stormy Winter 78 69 70 -1 0.0 -
99 Elembee - 77 84 -7 0.0 -
99 Moola Man - 75 83 -8 0.5 -
99 Trident King - 65 84 -19 1.0 -
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