He wore the captain's armband in Gwangju on 4 June 2002 and kept China out for ninety minutes, the win that ended Costa Rica's twelve-year wait for a World Cup victory. He made 76 appearances for his country between 1992 and 2002, spent a decade at Saprissa across 362 matches, and won two CONCACAF Champions Cups there in 1993 and 1995 alongside four national championships. Career record: 76 caps and 0 goals for Costa Rica; club career at C.S. Cartaginés, Asociación Deportiva Carmelita, Deportivo Saprissa.
| 1985–1988 | A.D. Turrialba |
| 1990–1991 | C.S. Cartaginés |
| 1992–1993 | Asociación Deportiva Carmelita |
| 1993–2003 | Deportivo Saprissa |
| Costa Rica | 76 caps, 0 goals |
Costa Rica legends whose careers overlapped Lonnis's
One rank above: Bryan Oviedo at #19.
One rank below: Roger Flores at #21.
Costa Rica's editorial top five: Keylor Navas · Bryan Ruiz · Celso Borges · Paulo Wanchope · Alejandro Morera Soto.