Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Outcome | Date | Tournament | Surface | Partner | Opponents in the final | Score in the final |
| --- | --- | --- | --- | --- | --- | --- |
| Winner | 1981.0 | Bologna , Italy | Carpet | Sammy Giammalva Jr. | Tomáš Šmíd Balázs Taróczy | 7–6, 6–4 |
| Winner | 1982.0 | Nice , France | Clay | Yannick Noah | Paul McNamee Balázs Taróczy | 5–7, 6–4, 6–3 |
| Runner-up | 1982.0 | Bournemouth , England | Clay | Ilie Năstase | Paul McNamee Buster Mottram | 6–3, 6–7, 3–6 |
| Winner | 1982.0 | Basel , Switzerland | Hard (i) | Yannick Noah | Fritz Buehning Pavel Složil | 6–2, 6–2 |
| Winner | 1982.0 | Vienna , Austria | Carpet | Pavel Složil | Mark Dickson Terry Moor | 6–1, 7–6 |
| Runner-up | 1983.0 | Monte Carlo , Monaco | Clay | Yannick Noah | Heinz Günthardt Balázs Taróczy | 2–6, 4–6 |
| Winner | 1983.0 | Aix-en-Provence , France | Clay | Gilles Moretton | Ivan Camus Sergio Casal | 2–6, 6–1, 6–2 |
| Runner-up | 1984.0 | Philadelphia , U.S. | Carpet | Yannick Noah | Peter Fleming John McEnroe | 2–6, 3–6 |
| Winner | 1984.0 | French Open , Paris | Clay | Yannick Noah | Pavel Složil Tomáš Šmíd | 6–4, 2–6, 3–6, 6–3, 6–2 |
| Winner | 1984.0 | Kitzbühel , Austria | Clay | Pascal Portes | Colin Dowdeswell Wojtek Fibak | 2–6, 7–6, 7–6 |
| Winner | 1984.0 | Stockholm , Sweden | Hard (i) | Tomáš Šmíd | Vijay Amritraj Ilie Năstase | 3–6, 7–6, 6–4 |
| Runner-up | 1985.0 | U.S. Open , New York | Hard | Yannick Noah | Ken Flach Robert Seguso | 7–6, 6–7, 6–7, 0–6 |
| Winner | 1988.0 | Nice , France | Clay | Guy Forget | Heinz Günthardt Diego Nargiso | 4–6, 6–3, 6–4 |
| Runner-up | 1988.0 | Monte Carlo , Monaco | Clay | Ivan Lendl | Sergio Casal Emilio Sánchez | 0–6, 3–6 |
| Runner-up | 1990.0 | London/Queen's Club , England | Grass | Ivan Lendl | Jeremy Bates Kevin Curren | 2–6, 6–7 |
| Runner-up | 1991.0 | Indian Wells , U.S. | Hard | Guy Forget | Jim Courier Javier Sánchez | 6–7, 6–3, 3–6 |
| Runner-up | 1992.0 | Toulouse , France | Hard (i) | Guy Forget | Brad Pearce Byron Talbot | 1–6, 6–3, 3–6 |
| Winner | 1993.0 | Indian Wells , U.S. | Hard | Guy Forget | Luke Jensen Scott Melville | 6–4, 7–5 |
| Runner-up | 1994.0 | Halle , Germany | Grass | Gary Muller | Olivier Delaître Guy Forget | 4–6, 7–6, 4–6 |
Question:
On what surface was Ivan Lendl a partner with a runner-up outcome and final score of 2–6, 6–7?
Answer:
Grass