Official NHA Assessment

Race 6: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MR 86 HANDICAP (Open)

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Line Horse
Orange County
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
1 / 8
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    Boundless Love       3    53.0    1    0.00     2.0   72    73           72    +0
2    Chestnut Bomber      3    61.0    2    0.20     2.0   88    89           89    +1
3    Orange County        2    55.5    3    4.60     0.0   82    82           82    +0
4    Bloomington          3    49.5    4    4.90     2.0   69    66           66    -3
5    Shoreybomba          3    52.0    5    5.65     2.0   77    71           71    -6
6    After Hours          7    56.5    6    5.90     0.0   79    84           84    +5
7    Robert Browning      3    60.5    7    7.40     2.0   87    88           88    +1
99   Greenlight Racer     2    54.5    99   0.00     0.0   -     80           80    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Boundless Love 72 77 72 +5 2.0 -
2 Chestnut Bomber 88 91 89 +2 2.0 -
3 Orange County Line 82 82 82 ✓ Match 0.0
4 Bloomington 69 69 66 +3 2.0 -
5 Shoreybomba 77 76 71 +5 2.0 -
6 After Hours 79 78 84 -6 0.0 -
7 Robert Browning 87 87 88 -1 2.0 -
99 Greenlight Racer - 75 80 -5 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