Official NHA Assessment

Race 4: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MR 66 HANDICAP (Open)

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Line Horse
Zoombomber
Reference for assessment
Exact Matches
2 / 11
Calculated = Official
Close Matches
7 / 11
Within 2 points
Significant Diffs
1 / 11
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    Magic Carpet Ride    3    59.0    1    0.00     2.5   64    62           64    +0
2    Zoombomber           2    56.5    2    0.30     1.5   59    59           59    +0
2    Time Will Tell       2    59.5    2    0.30     1.5   68    65           65    -3
4    Oriental Bouquet     4    53.0    4    0.35     0.0   55    55           55    +0
5    Jet Cat              9    57.0    5    0.60     0.0   60    63           63    +3
6    Tiger Storm          3    60.0    6    1.10     2.5   66    64           64    -2
7    Inafix               4    61.0    7    1.20     0.0   68    71           71    +3
8    Sergeant Soqrat      2    58.0    8    1.70     1.5   70    62           62    -8
9    Lilac Snow           2    57.0    9    2.45     1.5   60    60           60    +0
10   Blup Blup            2    55.5    10   7.95     1.5   60    57           57    -3
99   Palace Revolt        2    59.0    99   0.00     1.5   -     64           64    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Magic Carpet Ride 64 66 64 +2 2.5 -
2 Zoombomber Line 59 59 59 ✓ Match 1.5
2 Time Will Tell 68 68 65 +3 1.5 -
4 Oriental Bouquet 55 56 55 +1 0.0 -
5 Jet Cat 60 60 63 -3 0.0 -
6 Tiger Storm 66 65 64 +1 2.5 -
7 Inafix 68 67 71 -4 0.0 -
8 Sergeant Soqrat 70 68 62 +6 1.5 -
9 Lilac Snow 60 58 60 -2 1.5 -
10 Blup Blup 60 55 57 -2 1.5 -
99 Palace Revolt - 64 64 ✓ Match 1.5 -
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