Official NHA Assessment

Race 8: NEXT TURFFONTEIN RACEMEETING SATURDAY 25 NOVEMBER MR 86 HANDICAP (Open)

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Line Horse
Power Broker
Reference for assessment
Exact Matches
0 / 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    Cornwall             3    58.0    1    0.00     7.5   82    85           82    +0
2    Power Broker         2    58.5    2    2.00     5.0   91    91           91    +0
3    Twice The Storm      2    56.5    3    2.10     5.0   79    87           87    +8
4    Fostinovo            3    60.5    4    2.20     7.5   87    90           90    +3
5    Viva Spirit          2    56.5    5    3.00     5.0   89    87           87    -2
6    Vegas Hi Rise        6    59.0    6    3.20     0.0   84    102          102   +18
7    Angel Of War         3    54.5    7    5.00     7.5   78    78           78    +0
8    Goliath Heron        6    61.0    8    8.00     0.0   88    106          106   +18
9    Law Of Success       3    53.0    9    10.75    7.5   72    75           75    +3
10   Herecomestherain     4    56.5    10   22.75    9.0   79    79           79    +0
99   Beamonesque          4    57.0    99   0.00     9.0   -     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 Cornwall 82 84 82 +2 7.5 -
2 Power Broker Line 91 102 91 +11 5.0
3 Twice The Storm 79 73 87 -14 5.0 -
4 Fostinovo 87 80 90 -10 7.5 -
5 Viva Spirit 89 72 87 -15 5.0 -
6 Vegas Hi Rise 84 71 102 -31 0.0 -
7 Angel Of War 78 83 78 +5 7.5 -
8 Goliath Heron 88 86 106 -20 0.0 -
9 Law Of Success 72 81 75 +6 7.5 -
10 Herecomestherain 79 55 79 -24 9.0 -
99 Beamonesque - 76 80 -4 9.0 -
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