H2H data updated: 2026-07-19 02:51 UTC
Mariana Diaz-Oliva vs Rika Hiraki H2H: 0-1
Rika Hiraki holds a 1–0 lead over Mariana Diaz-Oliva in their WTA head-to-head. Across 1 main-draw meeting, Rika Hiraki leads 1–0 on hard courts. Most recently, Rika Hiraki won the 1997 US Open first round 6-4 4-6 6-2.
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ARG
Age 50
Right-Handed
172 cm / 5'8"
H2H
0
–
1
1 main draw meetings
JPN
Age 54
Right-Handed
157 cm / 5'2"
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Aug 27, 1997* | US Open | Grand Slam | R128 | Hard | Rika Hiraki | 6-4 4-6 6-2 | Mariana Diaz-Oliva | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mariana Diaz-Oliva | #452 | #42 | 696 | 1,654 | 86 | 129 | 40.0% | 0 | 0 | 0 | 0 | 1 | 1 |
| Rika Hiraki | #965 | #72 | 325 | 1,589 | 48 | 93 | 34.0% | 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 | Mariana Diaz-Oliva | Rika Hiraki | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 16 | — | — | — | — | — | — | — | 1988 | 0–2 | 0.0% | #305 | 1,477 | 0 | 0 |
| 18 | — | — | — | — | — | — | — | 1990 | 0–2 | 0.0% | #248 | 1,451 | 0 | 0 |
| 19 | — | — | — | — | — | — | — | 1991 | 8–8 | 50.0% | #105 | 1,544 | 0 | 0 |
| 20 | 1996 | 0–1 | 0.0% | #140 | 1,485 | 0 | 0 | 1992 | 8–15 | 34.8% | #122 | 1,570 | 0 | 0 |
| 21 | 1997 | 2–7 | 22.2% | #106 | 1,479 | 0 | 0 | 1993 | 8–18 | 30.8% | #134 | 1,550 | 0 | 0 |
| 22 | 1998 | 6–9 | 40.0% | #95 | 1,484 | 0 | 0 | 1994 | 2–8 | 20.0% | #187 | 1,504 | 0 | 0 |
| 23 | 1999 | 9–11 | 45.0% | #107 | 1,516 | 0 | 0 | 1995 | 4–7 | 36.4% | #152 | 1,525 | 0 | 0 |
| 24 | 2000 | 4–8 | 33.3% | #112 | 1,503 | 0 | 0 | 1996 | 6–12 | 33.3% | #103 | 1,511 | 0 | 0 |
| 25 | 2001 | 18–22 | 45.0% | #55 | 1,549 | 0 | 0 | 1997 | 9–16 | 36.0% | #93 | 1,486 | 0 | 0 |
| 26 | 2002 | 11–15 | 42.3% | #89 | 1,568 | 0 | 1 | 1998 | 3–4 | 42.9% | #168 | 1,502 | 0 | 0 |
| 27 | 2003 | 4–4 | 50.0% | #172 | 1,582 | 0 | 1 | — | — | — | — | — | — | — |
| 28 | 2004 | 5–9 | 35.7% | #102 | 1,541 | 0 | 1 | — | — | — | — | — | — | — |
| 29 | 2005 | 22–23 | 48.9% | #58 | 1,606 | 0 | 1 | 2001 | 0–1 | 0.0% | #339 | 1,498 | 0 | 0 |
| 30 | 2006 | 5–20 | 20.0% | #192 | 1,460 | 0 | 1 | — | — | — | — | — | — | — |