Official NHA Assessment

Race 3: MOBILE BETTING VISIT www.trackandball.co.za MAIDEN PLATE (For all Maidens)

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Line Horse
Rare Flag
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
5 / 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    Masterbling          3    60.0    1    0.00     4.5   -     60           6     +6
2    One Irish Rover      5    58.5    2    1.50     0.0   64    66           66    +2
3    Rare Flag            3    60.0    3    1.80     4.5   60    60           60    +0
4    Magwinya             2    60.0    4    2.85     3.0   68    63           63    -5
5    Aleeyah's Unicorn    2    53.5    5    3.55     3.0   64    50           54    -10
6    Blitzen              2    57.5    6    7.05     3.0   55    58           58    +3
7    Keenonkelly          2    57.5    7    7.30     3.0   -     58           58    +58
8    Whiz Bang            2    60.0    8    8.80     3.0   56    63           63    +7
9    Olverston            2    60.0    9    40.00    3.0   -     63           63    +63
99   King's Spear         4    60.0    99   0.00     5.0   -     59           59    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Masterbling - 74 6 +68 4.5 -
2 One Irish Rover 64 65 66 -1 0.0 -
3 Rare Flag Line 60 54 60 -6 4.5
4 Magwinya 68 50 63 -13 3.0 -
5 Aleeyah's Unicorn 64 52 54 -2 3.0 -
6 Blitzen 55 57 58 -1 3.0 -
7 Keenonkelly - 53 58 -5 3.0 -
8 Whiz Bang 56 52 63 -11 3.0 -
9 Olverston - 45 63 -18 3.0 -
99 King's Spear - 54 59 -5 5.0 -
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