Official NHA Assessment

Race 5: TRACK & BALL GAMING MR 67 HANDICAP (Open)

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Line Horse
Intrepid
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    Cavalieri            5    61.5    1    0.00     0.0   70    90           70    +0
2    Intrepid             3    54.5    2    0.90     6.0   64    64           64    +0
3    Quiz Master          3    57.0    3    0.95     6.0   61    69           69    +8
4    Purple Powahouse     8    57.5    4    3.05     0.0   62    82           82    +20
5    Get Carter           4    52.0    5    7.65     7.0   51    57           57    +6
99   Lazy Guy             4    58.5    99   0.00     7.0   -     70           70    +0
99   Happy Wanderer       5    57.0    99   0.00     0.0   -     81           81    +0
99   Masterbling          3    58.5    99   0.00     6.0   -     72           72    +0
99   El Draque            5    61.5    99   0.00     0.0   -     90           90    +0
99   Shona Kirsty Yves    3    54.0    99   0.00     6.0   -     63           63    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Cavalieri 70 73 70 +3 0.0 -
2 Intrepid Line 64 73 64 +9 6.0
3 Quiz Master 61 60 69 -9 6.0 -
4 Purple Powahouse 62 55 82 -27 0.0 -
5 Get Carter 51 46 57 -11 7.0 -
99 Lazy Guy - 61 70 -9 7.0 -
99 Happy Wanderer - 55 81 -26 0.0 -
99 Masterbling - 74 72 +2 6.0 -
99 El Draque - 57 90 -33 0.0 -
99 Shona Kirsty Yves - 60 63 -3 6.0 -
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