Official NHA Assessment

Race 4: BETWAY PINNACLE STAKES (For all horses)

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Line Horse
Explosive Bond
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
4 / 7
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    Raiseahallelujah     7    52.0    1    0.00     0.0   101   110          107   +6
2    Zeus                 3    60.0    2    0.20     10.5  117   105          107   -10
3    Explosive Bond       4    50.0    3    1.50     7.0   97    97           97    +0
4    Twin Turbo           4    52.0    4    8.75     7.0   92    96           96    +4
5    Flying Bull          4    52.0    5    38.85    7.0   98    96           96    -2
99   Banha Bridge         5    52.0    99   0.00     0.0   -     110          110   +0
99   Mambo Come Tesio     3    52.0    99   0.00     10.5  -     89           89    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Raiseahallelujah 101 103 107 -4 0.0 -
2 Zeus 117 117 107 +10 10.5 -
3 Explosive Bond Line 97 94 97 -3 7.0
4 Twin Turbo 92 88 96 -8 7.0 -
5 Flying Bull 98 98 96 +2 7.0 -
99 Banha Bridge - 70 110 -40 0.0 -
99 Mambo Come Tesio - 80 89 -9 10.5 -
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