H2H data updated: 2026-09-12 00:00 UTC
Eugenia Birioukova holds a 1–0 lead over Jenny Helliar in their WTA head-to-head. Across 1 main-draw meeting, Eugenia Birioukova leads 1–0 on grass. Most recently, Eugenia Birioukova won the 1972 Beckenham round of 64 6-2 2-6 9-7.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Eugenia Birioukova | 6-2 2-6 9-7 | Jenny Helliar | Match data | Jun 14, 1972* | R64 | Beckenham | WTA 250 | Grass |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Eugenia Birioukova | — | — | — | 1,701 | 40 | 33 | 54.8% | 0 | 0 | 0 | 0 | 3 | 3 |
| Jenny Helliar | — | — | — | 1,500 | 24 | 73 | 24.7% | 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.
| Eugenia Birioukova | Jenny Helliar | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1970 | 0–1 | 0.0% | — | 1,495 | 0 | 0 | 1968 | 0–7 | 0.0% | — | 1,432 | 0 | 0 |
| 1971 | 5–3 | 62.5% | — | 1,544 | 0 | 0 | 1969 | 4–12 | 25.0% | — | 1,452 | 0 | 0 |
| 1972 | 20–10 | 66.7% | — | 1,658 | 0 | 3 | 1970 | 3–9 | 25.0% | — | 1,427 | 0 | 0 |
| 1973 | 10–10 | 50.0% | — | 1,682 | 0 | 3 | 1971 | 5–12 | 29.4% | — | 1,414 | 0 | 0 |
| 1974 | 2–4 | 33.3% | — | 1,649 | 0 | 3 | 1972 | 5–14 | 26.3% | — | 1,376 | 0 | 0 |
| 1975 | 2–3 | 40.0% | — | 1,656 | 0 | 3 | 1973 | 1–5 | 16.7% | — | 1,358 | 0 | 0 |
| 1977 | 1–1 | 50.0% | — | 1,658 | 0 | 3 | 1974 | 6–14 | 30.0% | — | 1,390 | 0 | 0 |
| 1991 | 0–1 | 0.0% | — | 1,635 | 0 | 3 | — | — | — | — | — | — | — |
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.
| Eugenia Birioukova | Jenny Helliar | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Carpet | Yr | Hard | Clay | Grass | Carpet | ||||||||||||||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | ||
| 1970 | — | — | — | — | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | 1968 | 0 | 1 | 1 | 0.0% | 0 | 2 | 2 | 0.0% | 0 | 2 | 2 | 0.0% | 0 | 2 | 2 | 0.0% |
| 1971 | — | — | — | — | 2 | 1 | 3 | 66.7% | — | — | — | — | 3 | 2 | 5 | 60.0% | 1969 | 0 | 2 | 2 | 0.0% | 1 | 5 | 6 | 16.7% | 1 | 3 | 4 | 25.0% | 1 | 2 | 3 | 33.3% |
| 1972 | — | — | — | — | 3 | 2 | 5 | 60.0% | 5 | 5 | 10 | 50.0% | 10 | 1 | 11 | 90.9% | 1970 | 0 | 2 | 2 | 0.0% | 2 | 3 | 5 | 40.0% | 0 | 2 | 2 | 0.0% | 1 | 2 | 3 | 33.3% |
| 1973 | — | — | — | — | 6 | 5 | 11 | 54.5% | 1 | 3 | 4 | 25.0% | 3 | 2 | 5 | 60.0% | 1971 | 1 | 4 | 5 | 20.0% | 3 | 4 | 7 | 42.9% | 1 | 3 | 4 | 25.0% | 0 | 1 | 1 | 0.0% |
| 1974 | — | — | — | — | 0 | 2 | 2 | 0.0% | — | — | — | — | 2 | 2 | 4 | 50.0% | 1972 | 2 | 3 | 5 | 40.0% | 2 | 2 | 4 | 50.0% | 0 | 4 | 4 | 0.0% | 0 | 2 | 2 | 0.0% |
| 1975 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 1973 | — | — | — | — | 0 | 2 | 2 | 0.0% | 1 | 3 | 4 | 25.0% | — | — | — | — |
| 1977 | — | — | — | — | 1 | 0 | 1 | 100.0% | — | — | — | — | — | — | — | — | 1974 | 0 | 1 | 1 | 0.0% | 1 | 4 | 5 | 20.0% | 2 | 5 | 7 | 28.6% | — | — | — | — |
| 1991 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | — | — | — | 12 | 12 | 24 | 50.0% | 6 | 8 | 14 | 42.9% | 18 | 8 | 26 | 69.2% | Career | 3 | 13 | 16 | 18.8% | 9 | 22 | 31 | 29.0% | 5 | 22 | 27 | 18.5% | 2 | 9 | 11 | 18.2% |
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.
| Eugenia Birioukova | Jenny Helliar | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 1970 | 1496 | 98.0 | — | — | — | — | — | — | — | 0.0% | -5.00 | — | — | — | -0.25 | 1968 | 1432 | 88.2 | — | — | — | — | +21 | — | — | 12.5% | -3.31 | 0–2 | — | — | -0.75 |
| 1971 | 1544 | 107.8 | — | — | — | — | +30 | +9 | — | 57.9% | +0.58 | 2–1 (67%) | 1–0 | — | +1.80 | 1969 | 1453 | 101.5 | — | — | — | — | +14 | -37 | +38 | 27.6% | -1.66 | 1–0 | — | — | -0.35 |
| 1972 | 1658 | 118.5 | — | — | — | — | +142 | -79 | -95 | 64.8% | +0.90 | 5–6 (45%) | 2–1 (67%) | 100.0 | +5.61 | 1970 | 1427 | 94.3 | — | — | — | — | +12 | +17 | — | 24.0% | -2.28 | 1–0 | — | — | +0.68 |
| 1973 | 1683 | 132.3 | — | — | — | — | +90 | -25 | -144 | 47.6% | +0.17 | 2–2 (50%) | 2–1 (67%) | 100.9 | +2.26 | 1971 | 1415 | 106.4 | — | — | — | — | -14 | +44 | +40 | 33.3% | -1.08 | 0–2 | 0–1 | — | +1.03 |
| 1974 | 1650 | 109.2 | — | — | — | — | +118 | — | — | 46.2% | -0.39 | 1–2 (33%) | — | — | +0.76 | 1972 | 1377 | 94.6 | — | — | — | — | -11 | +110 | +14 | 31.8% | -1.18 | 2–4 (33%) | 0–1 | — | +1.02 |
| 1975 | 1657 | 125.1 | — | — | — | — | — | — | — | 42.9% | -0.86 | 2–2 (50%) | — | — | -0.75 | 1973 | 1359 | 93.2 | — | — | — | — | — | — | +15 | 33.3% | -2.27 | 0–3 (0%) | — | — | +0.63 |
| 1977 | 1659 | 109.3 | — | — | — | — | — | — | — | 60.0% | +1.00 | 0–1 | — | — | +0.18 | 1974 | 1390 | 101.4 | — | — | — | — | — | +22 | -14 | 34.1% | -1.43 | 1–3 (25%) | 0–1 | — | +1.05 |
| 1991 | 1636 | 91.5 | — | — | — | — | — | — | — | 0.0% | -5.50 | — | — | — | +0.13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 1701 | 125.6 | — | — | — | — | +105 | -34 | -109 | 54.8% | +0.29 | 12–14 (46%) | 5–2 (71%) | 101.8 | +13.53 | Career | 1500 | 97.0 | — | — | — | — | +1 | +27 | +14 | 29.7% | -1.65 | 5–14 (26%) | 0–3 (0%) | — | +3.48 |
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 |
|---|---|---|---|---|---|
| Olga Morozova | 3 | 4 | 7 | Jul 26, 1975 | H2H |
| Anna Yeremeyeva | 3 | 2 | 5 | Sep 30, 1972 | H2H |
| Marina Chuvirina | 2 | 1 | 3 | Feb 23, 1974 | H2H |
| Marina Kroschina | 0 | 2 | 2 | Jul 27, 1975 | H2H |
| Elena Granaturovna | 1 | 1 | 2 | Jul 26, 1975 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Fay Toyne | 0 | 3 | 3 | May 4, 1972 | H2H |
| Christine Truman | 0 | 3 | 3 | May 27, 1971 | H2H |
| Joyce Williams | 0 | 3 | 3 | Nov 6, 1970 | H2H |
| Corinne Molesworth | 0 | 3 | 3 | Apr 22, 1970 | H2H |
| Julie Heldman | 0 | 3 | 3 | Nov 1, 1969 | H2H |