Official NHA Assessment

Race 6: TAB TELEBET 0861 000 822 MR 74 HANDICAP (Open)

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Line Horse
Phinda Mzala
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
8 / 10
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    Spielberg            3    60.0    1    0.00     10.5  74    77           74    +0
2    Stormy Seas          4    58.0    2    1.25     12.0  70    70           70    +0
3    Phinda Mzala         4    57.0    3    1.45     12.0  68    68           68    +0
4    Trust The Fire       4    53.5    4    1.50     12.0  61    61           61    +0
5    Who's That Star      3    59.0    5    2.25     10.5  72    75           75    +3
6    Bridge Of Spies      6    52.0    6    3.50     0.0   50    82           82    +32
7    Bevoeterd            3    56.0    7    6.00     10.5  66    69           69    +3
8    Princess Queen       3    52.0    8    6.50     10.5  48    61           61    +13
9    True Brit            3    52.0    9    8.00     10.5  58    61           61    +3
10   Scottadito           3    57.0    10   9.25     10.5  68    71           71    +3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Spielberg 74 75 74 +1 10.5 -
2 Stormy Seas 70 77 70 +7 12.0 -
3 Phinda Mzala Line 68 54 68 -14 12.0
4 Trust The Fire 61 65 61 +4 12.0 -
5 Who's That Star 72 68 75 -7 10.5 -
6 Bridge Of Spies 50 48 82 -34 0.0 -
7 Bevoeterd 66 58 69 -11 10.5 -
8 Princess Queen 48 45 61 -16 10.5 -
9 True Brit 58 55 61 -6 10.5 -
10 Scottadito 68 55 71 -16 10.5 -
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