Club Mapes played with Reigate in the Sussex Martlet League, then signed for
Millwall Lionesses in the Greater London League. Winning club Player of the Year in her first season, 1989–90, Mapes was also part of the Millwall team which won the 1991
Women's FA Cup when they defeated
Doncaster Belles 10 at
Prenton Park. Millwall's squad broke up in the aftermath of that success and Mapes began
1991–92 with
Wimbledon. Before the end of the season, the first with a National league structure in England, Mapes was scouted by Swedish second-level club
Lindsdals IF. She joined the Swedes on a semi–pro basis, linking up with former Millwall teammate
Karen Farley. In 1994 Mapes was brought back to England by
Croydon, whose
player–manager Debbie Bampton was another member of Millwall's 1991 FA Cup winning team. Playing as a
sweeper or
central midfielder, Mapes helped her new club to a League and Cup
double in 1996. Mapes converted her kick in the
penalty shootout in the 1996 FA Women's Cup final win over
Liverpool at the
New Den. In the following year's competition, Mapes missed as Croydon lost a semi–final shootout to Millwall. In 1997 Mapes signed for champions
Arsenal. In the 1997–98 FA Women's Premier League Cup Mapes took part in another semi–final shootout, this time as an emergency
goalkeeper after Arsenal's Sarah Reed had been sent off. Arsenal edged out
Bradford City and Mapes collected another winner's medal when Arsenal beat Croydon 4–3 on penalties in the final, after the match had finished 0–0. Mapes was an unused substitute in the
1999 FA Women's Cup final as Arsenal beat Southampton Saints 20. She won the FA Cup for a fifth time in 2000 when Croydon Women beat Doncaster Belles 2-1 at
Bramall Lane. Mapes came on as a late substitute. ==Coaching career==