Official NHA Assessment

Race 6: GOLD CIRCLE RACING YOUTUBE CHANNEL MR 102 HANDICAP (Open)

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Line Horse
Passage Of Power
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
7 / 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    African Skyline      6    53.0    1    0.00     0.0   88    88           88    +0
2    Sikhulu              3    54.0    2    0.05     4.5   90    81           81    -9
3    After The Rain       4    59.5    3    1.75     5.0   104   91           94    -10
4    Passage Of Power     6    54.0    4    2.65     0.0   90    90           90    +0
5    Hawker Typhoon       4    55.5    5    4.15     5.0   93    83           83    -10
6    Aqua Bolt            5    58.5    6    5.55     0.0   99    99           99    +0
7    Back To Black        4    54.0    7    7.35     5.0   95    80           85    -10
8    Bowie                7    58.0    8    7.60     0.0   98    98           98    +0
9    Sashay Away          3    58.5    9    7.90     4.5   99    90           90    -9
10   Oh So Squishy        3    54.0    10   11.00    4.5   90    81           81    -9
11   It's About Time      3    55.5    11   11.90    4.5   93    84           84    -9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 African Skyline 88 98 88 +10 0.0 -
2 Sikhulu 90 94 81 +13 4.5 -
3 After The Rain 104 98 94 +4 5.0 -
4 Passage Of Power Line 90 76 90 -14 0.0
5 Hawker Typhoon 93 89 83 +6 5.0 -
6 Aqua Bolt 99 84 99 -15 0.0 -
7 Back To Black 95 89 85 +4 5.0 -
8 Bowie 98 82 98 -16 0.0 -
9 Sashay Away 99 88 90 -2 4.5 -
10 Oh So Squishy 90 68 81 -13 4.5 -
11 It's About Time 93 86 84 +2 4.5 -
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