H2H data updated: 2026-09-12 00:00 UTC
Shinichi Sakamoto holds a 1–0 lead over Toyokazu Tomogane in their ATP head-to-head. Across 1 main-draw meeting, Shinichi Sakamoto leads 1–0 on clay. Most recently, Shinichi Sakamoto won the 1981 Japan Open round of 64 7-5 6-1.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Shinichi Sakamoto | 7-5 6-1 | Toyokazu Tomogane | Match data | Oct 21, 1981* | R64 | Japan Open | ATP 250 | Clay |
Estimated match date where the exact historical date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 including documented historical predecessor categories | Finals | 500 including documented historical predecessor categories | 250 including documented historical predecessor categories | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Shinichi Sakamoto | #1,020 | #274 | 2 | 1,500 | 1 | 7 | 12.5% | 0 | 0 | 0 | 0 | 0 | 0 |
| Toyokazu Tomogane | — | — | — | 1,500 | — | — | — | 0 | 0 | 0 | 0 | 0 | 0 |
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Shinichi Sakamoto | Toyokazu Tomogane | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1978 | 0–1 | 0.0% | #374 | 1,487 | 0 | 0 | — | — | — | — | — | — | — |
| 1979 | 0–1 | 0.0% | #454 | 1,471 | 0 | 0 | — | — | — | — | — | — | — |
| 1980 | 0–1 | 0.0% | #390 | 1,460 | 0 | 0 | — | — | — | — | — | — | — |
| 1981 | 1–1 | 50.0% | — | 1,474 | 0 | 0 | — | — | — | — | — | — | — |
| 1983 | 0–1 | 0.0% | #473 | 1,467 | 0 | 0 | — | — | — | — | — | — | — |
| 1984 | 0–2 | 0.0% | #555 | 1,453 | 0 | 0 | — | — | — | — | — | — | — |
Rows are aligned in career order because complete birth data is unavailable. Results cover completed main-draw matches. Bold green marks the higher win percentage when both players have at least 5 matches on that surface at the aligned age.
| Shinichi Sakamoto | Toyokazu Tomogane | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Yr | Hard | Clay | ||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | ||
| 1978 | — | — | — | — | 0 | 1 | 1 | 0.0% | 1981 | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 1979 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — |
| 1980 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — |
| 1981 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — |
| 1983 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1984 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 0 | 3 | 3 | 0.0% | 1 | 4 | 5 | 20.0% | Career | — | — | — | — | 0 | 1 | 1 | 0.0% |
Rows are aligned in career order because complete birth data is unavailable. Metrics use eligible main-draw results; point statistics use matches with detailed data. Bold green marks the stronger value when both underlying samples are sufficient. Lower is better for Schedule because a negative value means a tougher schedule. Career Schedule is normalized per 100 matches.
| Shinichi Sakamoto | Toyokazu Tomogane | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule |
| 1978 | 1487 | 99.6 | — | — | — | — | — | — | — | 33.3% | -2.00 | 0–1 | 1–0 | — | +0.11 | 1981 | 1482 | 95.7 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | — | — | +0.26 |
| 1979 | 1472 | 97.9 | — | — | — | — | — | — | — | 33.3% | -2.33 | 0–1 | 1–0 | — | +0.19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1980 | 1460 | 94.5 | — | — | — | — | — | — | — | 0.0% | -4.50 | — | — | — | +0.09 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1981 | 1475 | 108.6 | — | — | — | — | — | — | — | 60.0% | +0.80 | 0–1 | — | — | +0.04 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1983 | 1468 | 101.8 | — | — | — | — | — | — | — | 0.0% | -3.00 | — | — | — | -0.08 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1984 | 1454 | 101.5 | — | — | — | — | — | — | — | 20.0% | -2.40 | 0–1 | 1–0 | — | -0.09 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 1500 | 102.0 | — | — | — | — | — | — | — | 30.0% | -1.80 | 0–4 (0%) | 3–0 (100%) | 98.1 | +3.25 | Career | 1500 | 97.7 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | — | — | +26.00 |
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Tom Gullikson | 0 | 1 | 1 | Oct 25, 1984 | — |
| Jay Lapidus | 0 | 1 | 1 | Oct 10, 1984 | H2H |
| Gianni Ocleppo | 0 | 1 | 1 | Oct 19, 1983 | H2H |
| Heinz Gunthardt | 0 | 1 | 1 | Oct 22, 1981 | H2H |
| Toyokazu Tomogane | 1 | 0 | 1 | Oct 21, 1981 | — |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Shinichi Sakamoto | 0 | 1 | 1 | Oct 21, 1981 | — |