Official NHA Assessment

Race 4: BETONTAB.CO.ZA PINNACLE STAKES (F & M) (For Fillies and Mares)

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Line Horse
Fly My Flag
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
7 / 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    Glacier Gold         4    58.0    1    0.00     3.5   89    94           94    +5
2    Fly My Flag          4    61.0    2    1.00     3.5   100   100          100   +0
3    Green Light Gal      4    59.5    3    1.75     3.5   93    97           97    +4
4    Sound Check          3    61.0    4    2.25     3.0   102   101          101   -1
5    Afternoon Tea        4    55.0    5    3.00     3.5   85    88           88    +3
6    Dive Captain         5    56.5    6    4.50     0.0   82    98           98    +16
7    Aye Aye              5    58.0    7    4.75     0.0   86    101          101   +15
8    Joyful Noise         4    60.5    8    6.00     3.5   101   99           99    -2
9    Delicasea            4    58.0    9    9.25     3.5   89    94           94    +5
10   Pot Sox              3    59.5    10   99.99    3.0   95    98           98    +3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Glacier Gold 89 104 94 +10 3.5 -
2 Fly My Flag Line 100 98 100 -2 3.5
3 Green Light Gal 93 93 97 -4 3.5 -
4 Sound Check 102 79 101 -22 3.0 -
5 Afternoon Tea 85 72 88 -16 3.5 -
6 Dive Captain 82 82 98 -16 0.0 -
7 Aye Aye 86 83 101 -18 0.0 -
8 Joyful Noise 101 95 99 -4 3.5 -
9 Delicasea 89 74 94 -20 3.5 -
10 Pot Sox 95 92 98 -6 3.0 -
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