Official NHA Assessment

Race 5: play.tabonline.co.za MR 90 HANDICAP (Open)

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Line Horse
Sudden Song
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
8 / 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    Night Ruler          3    55.5    1    0.00     5.0   81    79           81    +0
2    Montien              3    52.5    2    1.75     5.0   85    76           76    -9
3    Sudden Song          3    53.5    3    3.00     5.0   77    77           77    +0
4    Beyondtheboundary    3    55.5    4    3.30     5.0   81    80           80    -1
5    Lion's Head          4    58.0    5    4.55     2.5   86    89           89    +3
6    Innamorare           5    56.5    6    4.75     0.0   93    91           91    -2
7    I Want It All        3    60.5    7    13.50    5.0   91    89           89    -2
8    Faire Advantage      3    55.0    8    14.00    5.0   78    78           78    +0
9    Shavout              4    55.0    9    14.20    2.5   80    83           83    +3
10   The Futurist         3    59.5    10   14.95    5.0   89    87           87    -2
11   Spring High          4    57.0    11   17.45    2.5   84    87           87    +3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Night Ruler 81 75 81 -6 5.0 -
2 Montien 85 122 76 +46 5.0 -
3 Sudden Song Line 77 71 77 -6 5.0
4 Beyondtheboundary 81 72 80 -8 5.0 -
5 Lion's Head 86 84 89 -5 2.5 -
6 Innamorare 93 91 91 ✓ Match 0.0 -
7 I Want It All 91 86 89 -3 5.0 -
8 Faire Advantage 78 71 78 -7 5.0 -
9 Shavout 80 70 83 -13 2.5 -
10 The Futurist 89 104 87 +17 5.0 -
11 Spring High 84 79 87 -8 2.5 -
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