TENNISGOAT

🇸🇪 SWE · Right-handed · b. 1958-05-31

Jan Kallquist

Active 1974–1982 · best rank seen: 178

0–13
0
0
0
0
95
Career summary

Jan Kallquist of Sweden is a former right-handed player who competed on the ATP tour from 1974 to 1982. He finished with a career match record of 0–13 (0.0%). His best three-year stretch came in 1978–1980.

Hard
0–7 (0.0%)
Clay
0–4 (0.0%)
Carpet
0–2 (0.0%)

Season by season

Peak window 1978–1980 10 21 1974: 5 pts 1975: 15 pts 1976: 5 pts 1977: 15 pts 1978: 15 pts 1979: 15 pts 1980: 20 pts 1982: 5 pts 1974 1975 1976 1977 1978 1979 1980 1981 1982

Gold band: best three-year window (1978–1980).

Match results

Methodology

Titles include Slams, Masters, Tour Finals, 500s, 250s, legacy tour events and Olympic gold; Davis Cup is excluded, and walkovers are excluded from all win–loss records. GOAT points value every round reached, scaled per tier (Slam title 2000 anchor; ranking includes Slam champions only, but every player's points are shown here). Elo is a chess-style rating over the full match history (K = 250/(n+5)^0.4); the timeline shows pre-match ratings, sampled. The gold band on the season chart marks the best three-consecutive-year window.