Official NHA Assessment

Race 7: BETONTAB.CO.ZA MR 68 HANDICAP (Open)

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Line Horse
Tevye
Reference for assessment
Exact Matches
1 / 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    Rock Garden          3    62.0    1    0.00     4.5   78    76           78    +0
2    Storm Chaser         4    58.0    2    1.25     5.0   64    67           67    +3
3    Africanroyaljewel    4    56.5    3    4.25     5.0   61    64           64    +3
4    Tevye                4    59.0    4    4.75     5.0   69    69           69    +0
5    Masterful            6    59.0    5    4.80     0.0   66    79           79    +13
6    Stanton Street       5    53.0    6    5.80     0.0   59    67           67    +8
7    Sonny Quinn          4    59.5    7    5.85     5.0   67    70           70    +3
8    Winter Renegade      3    53.0    8    7.10     4.5   60    58           58    -2
9    Flower's Ridge       3    59.5    9    7.85     4.5   73    71           71    -2
10   The Black Manx       4    61.5    10   9.60     5.0   71    74           74    +3
99   Emerald Flame        5    59.0    99   0.00     0.0   -     79           79    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rock Garden 78 78 78 ✓ Match 4.5 -
2 Storm Chaser 64 69 67 +2 5.0 -
3 Africanroyaljewel 61 56 64 -8 5.0 -
4 Tevye Line 69 60 69 -9 5.0
5 Masterful 66 65 79 -14 0.0 -
6 Stanton Street 59 49 67 -18 0.0 -
7 Sonny Quinn 67 60 70 -10 5.0 -
8 Winter Renegade 60 55 58 -3 4.5 -
9 Flower's Ridge 73 63 71 -8 4.5 -
10 The Black Manx 71 71 74 -3 5.0 -
99 Emerald Flame - 35 79 -44 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