- Born
- 1973-03-17 in Johannesburg, South Africa, South Africa
- Hand
- Right
- Backhand
- nan
- Height
- 193 cm
- Weight
- 82 kg
- Turned Pro
- 1992
- Coach
- Michael de Jong
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John-Laffnie de Jager
John-Laffnie de Jager has played only 3 matches — too small a sample to draw firm conclusions about their career record.
At Grand Slam level (Australian Open, Roland Garros, Wimbledon, US Open): John-Laffnie de Jager has yet to record a win at Grand Slam level — 0–1 across 1 match. Breaking through here would mark a significant step forward.
| Date | Tournament | Srf | Rd | Wrk | Winner | Lrk | Loser | Score |
|---|---|---|---|---|---|---|---|---|
| 1992-06-22 | Wimbledon | Grass | R128 | 12 | 400 | 7-5 6-1 6-2 | ||
| 1992-03-30 | Johannesburg | Hard | R32 | 28 | 508 | 6-3 5-7 6-4 | ||
| 1989-11-13 | Johannesburg | Hard | R32 | 28 | 1035 | 6-1 6-3 |