Official NHA Assessment

Race 5: BETONTAB.CO.ZA CLASSIFIED STAKES (For horses with nett rating of 71 and below)

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Line Horse
Gilda Gray
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
10 / 12
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    Castle Of Glass      3    56.0    1    0.00     5.0   73    73           73    +0
2    Captain Of Grit      3    60.0    2    1.10     5.0   78    85           85    +7
3    Gilda Gray           3    52.0    3    1.25     5.0   69    69           69    +0
4    Light Of The Moon    3    54.0    4    3.00     5.0   71    71           71    +0
5    Golden Tune          5    56.0    5    5.25     0.0   62    83           83    +21
6    Twosidestoastory     3    58.0    6    8.25     5.0   74    77           77    +3
7    Scottadito           3    52.5    7    9.00     5.0   69    66           66    -3
8    Nabeela              5    58.0    8    11.50    0.0   70    87           87    +17
9    Timeforthat          4    56.0    9    14.25    2.5   67    78           78    +11
10   Invincible Wall      3    58.0    10   17.00    5.0   75    77           77    +2
11   Strike Speed         4    51.5    11   18.75    2.5   58    69           69    +11
12   In The Game          7    54.0    12   20.50    0.0   56    79           79    +23
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Castle Of Glass 73 79 73 +6 5.0 -
2 Captain Of Grit 78 84 85 -1 5.0 -
3 Gilda Gray Line 69 64 69 -5 5.0
4 Light Of The Moon 71 107 71 +36 5.0 -
5 Golden Tune 62 68 83 -15 0.0 -
6 Twosidestoastory 74 62 77 -15 5.0 -
7 Scottadito 69 55 66 -11 5.0 -
8 Nabeela 70 63 87 -24 0.0 -
9 Timeforthat 67 60 78 -18 2.5 -
10 Invincible Wall 75 70 77 -7 5.0 -
11 Strike Speed 58 58 69 -11 2.5 -
12 In The Game 56 54 79 -25 0.0 -
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