Official NHA Assessment

Race 2: HAPPY MOTHER'S DAY MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
American Rebel
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
6 / 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    Gimmeachoice         3    60.0    1    0.00     2.0   -     71           6     +6
2    Panning Gold         3    56.0    2    0.10     2.0   -     63           63    +63
3    Karoo Gold           3    60.0    3    2.10     2.0   77    74           74    -3
4    American Rebel       4    60.0    4    2.35     0.5   76    76           76    +0
5    Path Of Power        3    58.5    5    4.10     2.0   54    69           69    +15
6    Viva La Victor       2    60.0    6    4.85     0.0   67    75           75    +8
7    Trombettista         2    60.0    7    10.10    0.0   69    75           75    +6
8    Sicily               2    56.0    8    14.60    0.0   -     67           67    +67
9    Kamala Hill          3    60.0    9    19.10    2.0   48    71           71    +23
99   Thomas Rainwater     2    60.0    99   0.00     0.0   -     75           75    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Gimmeachoice - 87 6 +81 2.0 -
2 Panning Gold - 68 63 +5 2.0 -
3 Karoo Gold 77 67 74 -7 2.0 -
4 American Rebel Line 76 81 76 +5 0.5
5 Path Of Power 54 69 69 ✓ Match 2.0 -
6 Viva La Victor 67 62 75 -13 0.0 -
7 Trombettista 69 63 75 -12 0.0 -
8 Sicily - 62 67 -5 0.0 -
9 Kamala Hill 48 39 71 -32 2.0 -
99 Thomas Rainwater - 58 75 -17 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