Official NHA Assessment

Race 9: NEXT TURFFONTEIN RACEMEETING SATURDAY 18 MARCH MR 68 HANDICAP (Open)

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Line Horse
Power Ranger
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
3 / 12
Within 2 points
Significant Diffs
6 / 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    Pendragon            5    57.5    1    0.00     0.0   68    63           68    +0
2    Power Ranger         7    56.0    2    1.30     0.0   60    60           60    +0
3    Mcebisi              4    60.5    3    2.00     4.0   69    61           61    -8
4    Timbavati River      3    57.0    4    2.50     3.5   62    55           55    -7
5    Dark Tide            5    55.5    5    3.00     0.0   59    59           59    +0
6    Silk Garden          3    57.0    6    3.50     3.5   62    55           55    -7
7    Space Race           4    55.0    7    5.10     4.0   63    50           53    -10
8    Gimme Royalty        3    57.0    8    5.35     3.5   62    55           55    -7
9    Bridge Of Spies      6    52.0    9    6.75     0.0   50    52           52    +2
10   Giancarlo            2    52.0    10   11.00    2.5   50    47           47    -3
11   Tara Iti             4    50.5    11   18.00    4.0   54    41           44    -10
99   Tillieangus          5    58.5    99   0.00     0.0   -     65           65    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Pendragon 68 73 68 +5 0.0 -
2 Power Ranger Line 60 69 60 +9 0.0
3 Mcebisi 69 70 61 +9 4.0 -
4 Timbavati River 62 79 55 +24 3.5 -
5 Dark Tide 59 53 59 -6 0.0 -
6 Silk Garden 62 56 55 +1 3.5 -
7 Space Race 63 57 53 +4 4.0 -
8 Gimme Royalty 62 49 55 -6 3.5 -
9 Bridge Of Spies 50 48 52 -4 0.0 -
10 Giancarlo 50 45 47 -2 2.5 -
11 Tara Iti 54 52 44 +8 4.0 -
99 Tillieangus - 65 65 ✓ Match 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