Official NHA Assessment

Race 6: GAUTENG GUINEAS DAY 1 FEBRUARY MR 74 HANDICAP (Open)

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Line Horse
Robert Browning
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  
------------------------------------------------------------------------------------------------------------------------
1    Silvano's Song       3    60.5    1    0.00     6.0   75    82           75    +0
2    One More Star        3    60.0    2    0.25     6.0   86    81           81    -5
3    Robert Browning      3    58.0    3    2.00     6.0   82    82           82    +0
4    Another Universe     2    58.0    4    2.25     0.0   82    94           94    +12
5    Gamer                4    56.5    5    4.25     3.0   68    82           82    +14
6    Hazlo Grande         3    61.5    6    8.00     6.0   77    84           84    +7
7    Party Punch          3    54.5    7    11.50    6.0   75    70           70    -5
8    Guy Alexander        3    59.0    8    13.30    6.0   72    79           79    +7
9    Full Go              6    52.0    9    13.50    0.0   56    77           77    +21
10   Stormy Winter        8    59.0    10   15.25    0.0   72    91           91    +19
11   Celtic Rush          5    60.0    11   18.50    0.0   74    93           93    +19
12   Eye Catching         4    52.0    12   29.00    3.0   48    71           71    +23
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Silvano's Song 75 74 75 -1 6.0 -
2 One More Star 86 87 81 +6 6.0 -
3 Robert Browning Line 82 87 82 +5 6.0
4 Another Universe 82 82 94 -12 0.0 -
5 Gamer 68 65 82 -17 3.0 -
6 Hazlo Grande 77 74 84 -10 6.0 -
7 Party Punch 75 62 70 -8 6.0 -
8 Guy Alexander 72 72 79 -7 6.0 -
9 Full Go 56 59 77 -18 0.0 -
10 Stormy Winter 72 69 91 -22 0.0 -
11 Celtic Rush 74 69 93 -24 0.0 -
12 Eye Catching 48 48 71 -23 3.0 -
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