- Monaco Grand Prix
- Villeneuve back to winning ways
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May 31, 1981: Gilles Villeneuve showed Ferrari had put its appalling 1980 season behind it with victory in Monte Carlo, but yet again the weekend was as memorable for off-track events as anything on it.
- Belgian Grand Prix
- Reutemann win marred by death of mechanic
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May 17, 1981: Carlos Reutemann won the Belgian Grand Prix but it was a weekend marred by endless bickering over the legality of cars and the death of a mechanic when he fell from the pit wall and a serious accident involving another
- San Marino Grand Prix
- Piquet closes gap with Imola win
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May 3, 1981: Nelson Piquet scored his second successive win with victory at the San Marino Grand Prix, taking him within three points of championship leader Carlos Reutemann