Player data updated: 2026-10-17 16:37 UTC
Kouichi Sayama
Kouichi Sayama represented Japan on the ATP Tour and reached a career high of No. 534. TennisDB's records show a singles record of 0–1 and no singles titles.
Peak singles rank
534 (Jul 28, 1986)
Elo peak
1500 (3rd percentile)
Singles record
0–1 (0.0%)
Singles titles
0
Prize money
$1,482
Records cover recorded main-draw singles results in TennisDB's ATP event archive, including credited walkovers; qualifying is shown separately below.
ATP Matches full match log →
| Opponent | Score | Result | H2H | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|---|
| Francisco Gonzalez | 3-6 3-6 | L | H2H | Match data | Oct 20, 1982* | R64 | Japan Open | ATP 250 | Clay |
Rivals all rivalries →
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Francisco Gonzalez | 0 | 1 | 1 | Oct 20, 1982 | H2H |
Career Results
| Season | W | L | M | Win % | Start Rank | End Rank |
|---|---|---|---|---|---|---|
| 1982 | 0 | 1 | 1 | 0.0% | — | — |
| Career | 0 | 1 | 1 | 0.0% | — | — |
Career Results by Surface
| Season | Hard | Clay | Grass | Total | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | |
| 1982 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 0 | 1 | 1 | 0.0% |
| Career | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 0 | 1 | 1 | 0.0% |
Advanced Stats
| Season | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1982 | 1489 | 97.0 | — | — | — | — | — | — | — | 0.0% | -3.00 | — | — | — | +0.05 |
| Career | 1500 | 98.4 | — | — | — | — | — | — | — | 0.0% | -3.00 | — | — | — | +5.00 |
Tournament Results by Category
ATP Ranking History full ranking history →
Career high
534
Career-high date
Jul 28, 1986
First Top 100
—
First Top 50
—
First Top 20
—
First Top 10
—
Ranking History Matrix
| Season | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1983 | 831 | — | — | — | — | — | — | — | — | — | — | — |
| 1985 | — | — | — | — | 761 | 766 | 737 | 607 | 602 | 600 | 607 | 601 |
| 1986 | 597 | 589 | 596 | 589 | 608 | 608 | 534 | 656 | 668 | 669 | 673 | 646 |
| 1987 | 648 | 640 | 627 | 651 | 662 | 674 | 901 | 920 | 920 | 941 | 950 | — |
| 1988 | — | — | — | — | 964 | 984 | 992 | 991 | 1029 | 1015 | 1032 | 1054 |
| 1989 | 1054 | 1054 | 1064 | 1067 | — | — | — | — | — | — | — | 875 |
| 1990 | 868 | 858 | 868 | 844 | 832 | 837 | 810 | 790 | 790 | 794 | 805 | 804 |
Similar Players
Other ATP players with comparable peak level, era, career record, and career scale.
| Player | Country | Peak ranking | Peak Elo | M | W | L | Win % | Prize money | Titles | GS | M1000 | Years | Rivalries | Match log |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pascal Deniau | FRA | #576 | 1,519 | 2 | 1 | 1 | 50.0% | — | 0 | 0 | 0 | 1982–1982 | Rivalries | Match log |
| Cary Leeds | USA | #389 | 1,500 | 11 | 1 | 10 | 9.1% | — | 0 | 0 | 0 | 1979–1983 | Rivalries | Match log |
| Eiji Takeuchi | JPN | #402 | 1,500 | 6 | 1 | 5 | 16.7% | $11,298 | 0 | 0 | 0 | 1979–1985 | Rivalries | Match log |
| Hans Hansson | AUS | #382 | 1,511 | 8 | 1 | 7 | 12.5% | — | 0 | 0 | 0 | 1980–1982 | Rivalries | Match log |
| Gabriel Auroux | ARG | #429 | 1,527 | 2 | 1 | 1 | 50.0% | — | 0 | 0 | 0 | 1982–1982 | Rivalries | Match log |
| Shozo Shiraishi | JPN | #326 | 1,500 | 13 | 1 | 12 | 7.7% | $15,703 | 0 | 0 | 0 | 1979–1989 | Rivalries | Match log |
| Rick Meyers | USA | #415 | 1,514 | 3 | 1 | 2 | 33.3% | $1,100 | 0 | 0 | 0 | 1981–1982 | Rivalries | Match log |
| Luis Ayala | CHI | #482 | 1,634 | 50 | 25 | 25 | 50.0% | — | 0 | 0 | 0 | 1968–1982 | Rivalries | Match log |
| Hitoshi Shirato | JPN | #337 | 1,512 | 7 | 1 | 6 | 14.3% | $24,337 | 0 | 0 | 0 | 1981–1987 | Rivalries | Match log |
| Chris Bradnam | GBR | #386 | 1,500 | 5 | 1 | 4 | 20.0% | — | 0 | 0 | 0 | 1978–1983 | Rivalries | Match log |
| Mark Lewis | NZL | #403 | 1,522 | 9 | 3 | 6 | 33.3% | $709 | 0 | 0 | 0 | 1980–1984 | Rivalries | Match log |
| Christophe Lesage | FRA | #393 | 1,506 | 4 | 1 | 3 | 25.0% | $5,371 | 0 | 0 | 0 | 1980–1983 | Rivalries | Match log |
Frequently Asked Questions
- Which country does Kouichi Sayama represent?
- Kouichi Sayama represents Japan in TennisDB's ATP records.
- Is Kouichi Sayama left-handed or right-handed?
- Kouichi Sayama plays right-handed.
- How many Grand Slam singles titles has Kouichi Sayama won?
- Kouichi Sayama has not won a Grand Slam singles title.
- How many Masters 1000 titles has Kouichi Sayama won?
- TennisDB does not group any of Kouichi Sayama's titles under the modern Masters 1000 category.
- What is Kouichi Sayama's highest ATP ranking?
- Kouichi Sayama's career-high ATP singles ranking is world No. 534, first achieved on July 28, 1986.
- What is Kouichi Sayama's career win-loss record?
- Kouichi Sayama has a career ATP singles record of 0 wins and 1 losses (0.0%).
- How much career prize money has Kouichi Sayama earned?
- Kouichi Sayama has earned at least $1,482 in career prize money from professional tennis.
- Which seasons of Kouichi Sayama's career appear in TennisDB?
- Kouichi Sayama appears in TennisDB's ATP main-tour match records in 1982.
- Who has Kouichi Sayama faced most often?
- Kouichi Sayama's most frequent opponent is Francisco Gonzalez, with a head-to-head record of 0–1 across 1 meeting.