H2H data updated: 2026-07-18 02:15 UTC
John James vs Brad Guan H2H: 1-0
John James holds a 1–0 lead over Brad Guan in their ATP head-to-head. Across 1 main-draw meeting, John James leads 1–0 on grass. Most recently, John James won the 1982 Adelaide (2) fourth round 6-4 4-6 6-4.
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AUS
Age 75
Right-Handed
183 cm / 6'0"
H2H
1
–
0
1 main draw meetings
AUS
Age 68
Right-Handed
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Jan 8, 1982* | Adelaide (2) | ATP 250 | R16 | Grass | John James | 6-4 4-6 6-4 | Brad Guan | Match data |
* Estimated match date where the exact historical date is unavailable.
Career Comparison
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 | Finals | 500 | 250 | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| John James | #808 | #81 | 28 | 1,681 | 98 | 144 | 40.5% | 0 | 0 | 0 | 0 | 0 | 0 |
| Brad Guan | #183 | #183 | 0 | 1,516 | 8 | 18 | 30.8% | 0 | 0 | 0 | 0 | 0 | 0 |
Career Progression by Age
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Age | John James | Brad Guan | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 17 | 1968 | 3–3 | 50.0% | — | 1,517 | 0 | 0 | — | — | — | — | — | — | — |
| 19 | 1970 | 1–1 | 50.0% | — | 1,514 | 0 | 0 | 1978 | 0–1 | 0.0% | #555 | 1,491 | 0 | 0 |
| 20 | — | — | — | — | — | — | — | 1979 | 1–1 | 50.0% | #368 | 1,506 | 0 | 0 |
| 21 | 1972 | 7–4 | 63.6% | — | 1,572 | 0 | 0 | 1980 | 0–2 | 0.0% | #185 | 1,482 | 0 | 0 |
| 22 | 1973 | 0–5 | 0.0% | — | 1,503 | 0 | 0 | 1981 | 3–8 | 27.3% | #185 | 1,477 | 0 | 0 |
| 23 | 1974 | 2–3 | 40.0% | #249 | 1,513 | 0 | 0 | 1982 | 4–6 | 40.0% | #223 | 1,510 | 0 | 0 |
| 24 | 1975 | 5–10 | 33.3% | #135 | 1,515 | 0 | 0 | — | — | — | — | — | — | — |
| 25 | 1976 | 6–14 | 30.0% | #146 | 1,511 | 0 | 0 | — | — | — | — | — | — | — |
| 26 | 1977 | 16–23 | 41.0% | #110 | 1,582 | 0 | 0 | — | — | — | — | — | — | — |
| 27 | 1978 | 20–27 | 42.6% | #102 | 1,627 | 0 | 0 | — | — | — | — | — | — | — |
| 28 | 1979 | 19–22 | 46.3% | #91 | 1,643 | 0 | 0 | — | — | — | — | — | — | — |
| 29 | 1980 | 12–25 | 32.4% | #209 | 1,492 | 0 | 0 | — | — | — | — | — | — | — |
| 30 | 1981 | 3–4 | 42.9% | #209 | 1,489 | 0 | 0 | — | — | — | — | — | — | — |
| 31 | 1982 | 4–3 | 57.1% | #295 | 1,559 | 0 | 0 | — | — | — | — | — | — | — |