Official NHA Assessment

Race 9: NEXT VAAL RACEMEETING THURSDAY 28 MAY MR 65 HANDICAP (Open)

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Line Horse
Kotinos
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
2 / 12
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    Dads Dream           2    59.5    1    0.00     1.5   83    66           83    +0
2    Kotinos              3    56.0    2    2.75     2.5   57    57           57    +0
3    Daring Act           4    57.0    3    3.25     0.0   59    64           64    +5
4    Sergeant Soqrat      2    58.5    4    3.75     1.5   68    64           64    -4
5    Stage One            2    57.5    5    3.80     1.5   79    62           69    -10
6    Nkandla Gold         4    58.0    6    5.55     0.0   61    66           66    +5
7    Blup Blup            2    53.5    7    7.55     1.5   55    54           54    -1
8    Spy Story            3    59.0    8    8.30     2.5   63    63           63    +0
9    Tiger Storm          3    60.0    9    8.80     2.5   65    65           65    +0
10   Oriental Bouquet     4    54.0    10   9.55     0.0   56    58           58    +2
11   Bell Of Angelus      2    58.5    11   13.80    1.5   65    64           64    -1
12   Zoombomber           2    57.0    12   99.99    1.5   59    61           61    +2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dads Dream 83 - 83 - 1.5 -
2 Kotinos Line 57 57 57 ✓ Match 2.5
3 Daring Act 59 58 64 -6 0.0 -
4 Sergeant Soqrat 68 66 64 +2 1.5 -
5 Stage One 79 - 69 - 1.5 -
6 Nkandla Gold 61 60 66 -6 0.0 -
7 Blup Blup 55 52 54 -2 1.5 -
8 Spy Story 63 60 63 -3 2.5 -
9 Tiger Storm 65 62 65 -3 2.5 -
10 Oriental Bouquet 56 55 58 -3 0.0 -
11 Bell Of Angelus 65 60 64 -4 1.5 -
12 Zoombomber 59 59 61 -2 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