Official NHA Assessment

Race 3: NATAL NOMADS - FURTHERANCE OF GOLF CLASS 4 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 82)

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Line Horse
Greenhouse
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
5 / 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    Miss Twinkle         3    56.0    1    0.00     8.0   75    72           72    -3
2    Sascha's Dream       3    55.5    2    0.10     8.0   77    71           71    -6
3    Spinmyangelsspin     3    54.5    3    0.90     8.0   72    73           73    +1
4    Greenhouse           3    55.0    4    2.00     8.0   73    73           73    +0
5    Prom Queen           3    58.0    5    2.30     8.0   79    78           78    -1
6    Queen Amina          3    60.0    6    3.00     8.0   83    82           82    -1
7    Acacia's Blossom     2    51.5    7    3.50     0.0   73    80           80    +7
8    Safari Lodge         2    58.0    8    4.50     0.0   79    92           92    +13
9    Blue Horizon         4    58.5    9    8.10     5.0   87    83           83    -4
10   Oh My Gucci Girl     3    53.0    10   14.00    8.0   69    66           66    -3
99   Saint Brigid         3    52.0    99   0.00     8.0   -     64           64    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Miss Twinkle 75 86 72 +14 8.0 -
2 Sascha's Dream 77 75 71 +4 8.0 -
3 Spinmyangelsspin 72 77 73 +4 8.0 -
4 Greenhouse Line 73 73 73 ✓ Match 8.0
5 Prom Queen 79 81 78 +3 8.0 -
6 Queen Amina 83 76 82 -6 8.0 -
7 Acacia's Blossom 73 66 80 -14 0.0 -
8 Safari Lodge 79 71 92 -21 0.0 -
9 Blue Horizon 87 84 83 +1 5.0 -
10 Oh My Gucci Girl 69 62 66 -4 8.0 -
99 Saint Brigid - 80 64 +16 8.0 -
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