Official NHA Assessment

Race 4: www.tabgold.co.za MR 77 HANDICAP (Open)

Back to Race
Line Horse
Caesura
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
4 / 9
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Blazing Light        3    54.0    1    0.00     3.5   65    54           65    +0
2    Caesura              6    58.0    2    0.40     0.0   76    76           76    +0
3    Arrow's Mark         6    52.0    3    2.60     0.0   55    61           61    +6
4    Eventidor            6    59.5    4    2.70     0.0   76    76           76    +0
5    Rodriguez            6    56.5    5    3.75     0.0   70    68           68    -2
6    Grimaldi             4    56.5    6    5.95     1.5   70    63           63    -7
7    Pirate Prince        2    58.5    7    6.35     0.0   81    70           71    -10
8    Warrior Bling        5    60.0    8    7.15     0.0   77    73           73    -4
9    Flying Grace         4    55.0    9    7.20     1.5   67    60           60    -7
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Blazing Light 65 62 65 -3 3.5 -
2 Caesura Line 76 81 76 +5 0.0
3 Arrow's Mark 55 54 61 -7 0.0 -
4 Eventidor 76 89 76 +13 0.0 -
5 Rodriguez 70 69 68 +1 0.0 -
6 Grimaldi 70 67 63 +4 1.5 -
7 Pirate Prince 81 94 71 +23 0.0 -
8 Warrior Bling 77 87 73 +14 0.0 -
9 Flying Grace 67 63 60 +3 1.5 -
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