| Mackin | 1 - 0 | ||||
| 2003 | Davis Cup | 1 | Clay | W | 6-3, 6-3, 6-3 |
| MacPhie | 1 - 0 | ||||
| 2000 | Kroger St. Jude | 1 | surface | W | 6-2, 6-4 |
| Mahut | 1 - 0 | ||||
| 2001 | Paris Indoors | 1 | carpet | W | 6-3, 6-4 |
| Malisse | 3 - 0 | ||||
| 2003 | Boodle & Dunthorne | F | grass | W | 7-5, 6-3 |
| 2003 | Tennis Masters - Hamburg | 2 | clay | W | 6-3 7-6 (7-5) |
| 1999 | Wimbledon | 1 | grass | W | 6-7 (4-7), 6-4, 6-3, 6-4 |
| Mamiit | 1 - 0 | ||||
| 1999 | SyBase Open | F | hardcourt | W | 6-3, 6-2 |
| Mantilla | 0 - 1 | ||||
| 1996 | Gstaad | 1 | clay | L | 4-6, 6-7 (6-8) |
| Marin | 1 - 0 | ||||
| 2006 | Bermuda Open | 1 | clay | W | 6-1, 6-1 |
| A. Martin | 1 - 1 | ||||
| 2001 | Stuttgart | 1 | hardcourt | W | 6-3, 3-6, 6-3 |
| 2001 | CA Tennis Trophy - Vienna | 1 | carpet | L | 6-3, 3-6, 1-6 |
| T. Martin | 3 - 1 | ||||
| 2002 | Australian Mens Hardcourt | Q | surface | W | 4-6, 6-2, 6-2 |
| 1999 | Indian Wells | Q | hardcourt | W | 3-6, 7-5, 6-1 |
| 1996 | Memphis | S | hardcourt | L | 3-6, 5-7 |
| 1995 | Scottsdale | S | hardcourt | W | 7-6 (7-3), 6-3 |
| Massu | 0 - 1 | ||||
| 2004 | World Team Cup | F | clay | L | 3-6, 1-6 |
| Mathieu | 1 - 0 | ||||
| 2006 | Wimbledon | 1 | carpet | W | 5-7, 7-6 (7-5), 6-3, 7-6 (14-12) |
| Mayer | 0 - 1 | ||||
| 2006 | Pacific Life Open | 1 | hardcourt | L | 4-6, 3-6 |
| P. McEnroe | 1 - 0 | ||||
| 1995 | Malaysia | S | hardcourt | W | 6-3, 6-3 |
| Medvedev | 0 - 1 | ||||
| 1996 | Monte Carlo | 2 | clay | L | 0-6, 2-6 |
| Meligeni | 0 - 1 | ||||
| 1996 | Olympics | 3 | hardcourt | L | 6-7 (7-9), 6-4, 6-8 |
| Melzer | 1 - 0 | ||||
| 2000 | Wimbledon | 1 | grass | W | 6-4, 7-6 (7-3), 5-7, 6-4 |
| Mirnyi | 0 - 1 | ||||
| 2006 | Wimbledon | 2 | grass | L | 6-7 (6-8), 4-6, 7-6 (7-5), 3-6 |
| Moodie | 1 - 0 | ||||
| 2006 | Stella Artois | 1 | grass | W | 6-3, 6-4 |
| Morgan | 1 - 0 | ||||
| 1995 | Tokyo | 1 | carpet | W | 1-6, 7-6 (7-2), 6-4 |
| juniors | 1 - 0 | ||||
| 1993 | Philippines Intl Junior Champs |
1 | hardcourt | W | 7-6, 7-5 |
| Morrison | 1 - 0 | ||||
| 2005 | Pro Tennis World Open (Challenger) | 1 | hardcourt | W | 6-3, 7-6 (9-7) |
| Motomura | 1 - 0 | ||||
| 2006 | Wailea Men's Challenger | 1 | hard | W | 7-6 (7-5), 2-6, 2-2 (ret) |
| Moya | 4 - 3 | ||||
| 2003 | Davis Cup Final | R1 | grass | L | 4-6, 6-4, 3-6, 6-7(4-7) |
| 2003 | French Open | 2 | clay | L | 2-6, 4-6, 6-7 (7-9) |
| 2002 | French Open | 2 | clay | L | 2-6, 6-7 (7-9), 6-7 (9-11) |
| 1999 | Indian Wells | F | hardcourt | W | 5-7, 6-4, 6-4, 4-6, 6-2 |
| 1999 | Hopman Cup | R-R | surface | W | 6-4, 7-6 (9-7) |
| 1998 | US Open | S | hardcourt | W | 6-1, 6-4, 5-7, 6-4 |
| 1997 | Indian Wells | 3 | hardcourt | W | 6-4, 6-3 |
| Mronz | 1 - 0 | ||||
| 1995 | Tokyo | 1 | carpet | W | 6-3, 6-3 |
| Musa | 1 - 0 | ||||
| 1997 | Milan | 1 | carpet | W | 6-1, 6-3 |
| Muller | 0 - 1 | ||||
| 2005 | Thailand Open | 1 | hardcourt | L | 6-7 (5-7) 6-2 5-7 |
| Muster | 0 - 2 | ||||
| 1997 | Indian Wells | Q | hardcourt | L | 3-6, 6-7 (8-10) |
| 1996 | Munich | Q | clay | L | 3-6, 6-0, 2-6 |