Official NHA Assessment

Race 4: ONLINE FORM GUIDE www.gallop.co.za APPRENTICE CLASS 5 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 70)

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Line Horse
Roy's Grace
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
3 / 7
Within 2 points
Significant Diffs
0 / 7
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    Mountainsofthemoon   2    53.5    1    0.00     0.0   65    65           65    +0
2    Lilac In Winter      2    58.0    2    0.25     0.0   76    74           74    -2
3    Roy's Grace          4    53.5    3    2.95     1.0   65    65           65    +0
4    State Capitol        4    50.0    4    4.25     1.0   55    57           57    +2
5    Greenlight Queen     3    55.5    5    4.65     2.0   64    65           65    +1
99   West Side Story      3    60.0    99   0.00     2.0   -     74           74    +0
99   Fate Decreed         3    50.5    99   0.00     2.0   -     55           55    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mountainsofthemoon 65 69 65 +4 0.0 -
2 Lilac In Winter 76 79 74 +5 0.0 -
3 Roy's Grace Line 65 63 65 -2 1.0
4 State Capitol 55 54 57 -3 1.0 -
5 Greenlight Queen 64 63 65 -2 2.0 -
99 West Side Story - 70 74 -4 2.0 -
99 Fate Decreed - 54 55 -1 2.0 -
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