Official NHA Assessment

Race 7: BETWAY JOBURG SPRING CHALLENGE (Grade 2) (For all horses at Weight for age + Penalties)

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Line Horse
Gladatorian
Reference for assessment
Exact Matches
1 / 14
Calculated = Official
Close Matches
3 / 14
Within 2 points
Significant Diffs
9 / 14
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    Back In Business     3    58.5    1    0.00     8.0   106   102          102   -4
2    Wild At War          3    50.5    2    1.50     8.0   100   89           90    -10
2    Barbaresco           4    58.0    2    1.50     5.0   120   110          110   -10
4    Gladatorian          5    58.5    4    2.70     0.0   120   120          120   +0
5    Melech               5    58.5    5    4.30     0.0   118   118          118   +0
6    William Robertson    6    58.5    6    4.50     0.0   125   118          118   -7
7    Main Defender        4    60.0    7    4.70     5.0   131   111          121   -10
8    Purple Pitcher       4    60.0    8    8.45     5.0   123   111          113   -10
9    Dantonfromsandton    3    50.5    9    9.20     8.0   108   86           98    -10
10   Zinovi               2    58.0    10   10.50    0.0   114   117          117   +3
11   Gimmeanotherchance   4    58.0    11   11.50    5.0   119   107          109   -10
12   Grand Crescendo      3    50.5    12   12.60    8.0   114   86           104   -10
13   Unzen                3    58.5    13   16.85    8.0   116   102          106   -10
14   Joker Man            4    58.0    14   19.10    5.0   106   107          107   +1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Back In Business 106 114 102 +12 8.0 -
2 Wild At War 100 92 90 +2 8.0 -
2 Barbaresco 120 116 110 +6 5.0 -
4 Gladatorian Line 120 127 120 +7 0.0
5 Melech 118 118 118 ✓ Match 0.0 -
6 William Robertson 125 124 118 +6 0.0 -
7 Main Defender 131 130 121 +9 5.0 -
8 Purple Pitcher 123 121 113 +8 5.0 -
9 Dantonfromsandton 108 96 98 -2 8.0 -
10 Zinovi 114 120 117 +3 0.0 -
11 Gimmeanotherchance 119 96 109 -13 5.0 -
12 Grand Crescendo 114 107 104 +3 8.0 -
13 Unzen 116 116 106 +10 8.0 -
14 Joker Man 106 98 107 -9 5.0 -
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