Official NHA Assessment

Race 5: TAKE A BET WINA NUMBA NUMBA MR 68 HANDICAP (Open)

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Line Horse
Sparkling Jubilee
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
4 / 11
Within 2 points
Significant Diffs
6 / 11
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Jury's Out           2    61.5    1    0.00     0.0   83    67           83    +0
2    Copper John          4    59.5    2    0.25     3.0   79    57           69    -10
3    Sparkling Jubilee    5    59.0    3    0.75     0.0   66    66           66    +0
4    Gimme The Flame      5    52.5    4    1.50     0.0   56    52           52    -4
5    Princess Azariah     2    57.5    5    2.00     0.0   75    62           65    -10
6    Zoombomber           2    55.0    6    3.10     0.0   70    56           60    -10
7    Anytime Champ        3    54.0    7    3.20     6.0   56    42           46    -10
8    Della's Sword        3    53.5    8    4.75     6.0   55    39           45    -10
9    Full Go              6    58.5    9    5.25     0.0   65    61           61    -4
10   Bushveld             3    52.0    10   6.50     6.0   60    36           50    -10
11   Futurewolff          5    57.0    11   99.99    0.0   70    58           60    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jury's Out 83 85 83 +2 0.0 -
2 Copper John 79 61 69 -8 3.0 -
3 Sparkling Jubilee Line 66 76 66 +10 0.0
4 Gimme The Flame 56 50 52 -2 0.0 -
5 Princess Azariah 75 62 65 -3 0.0 -
6 Zoombomber 70 60 60 ✓ Match 0.0 -
7 Anytime Champ 56 53 46 +7 6.0 -
8 Della's Sword 55 56 45 +11 6.0 -
9 Full Go 65 59 61 -2 0.0 -
10 Bushveld 60 56 50 +6 6.0 -
11 Futurewolff 70 75 60 +15 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