H2H data updated: 2026-09-13 00:00 UTC
Compare the head-to-head record, career totals, season-by-season performance, and match log for Katarzyna Piter vs Barbara Haas.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Katarzyna Piter | 6-3 6-4 | Barbara Haas | Match data | Jun 9, 2018 | Q1 | Libéma Open | International → modern equivalent WTA 250 | Grass |
1 qualifying meeting shown in the table; qualifying is excluded from the H2H score. 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Katarzyna Piter | #1,075 | #95 | 648 | 1,574 | 8 | 20 | 28.6% | 0 | 0 | 0 | 0 | 0 | 0 |
| Barbara Haas | #1,326 | #133 | 511 | 1,544 | 2 | 19 | 9.5% | 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.
| Age | Katarzyna Piter | Barbara Haas | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 16 | 2007 | 0–1 | 0.0% | #676 | 1,498 | 0 | 0 | 2012 | 0–1 | 0.0% | #528 | 1,484 | 0 | 0 |
| 18 | 2009 | 0–1 | 0.0% | #334 | 1,491 | 0 | 0 | — | — | — | — | — | — | — |
| 19 | 2010 | 1–1 | 50.0% | #249 | 1,505 | 0 | 0 | 2015 | 0–2 | 0.0% | #232 | 1,464 | 0 | 0 |
| 20 | — | — | — | — | — | — | — | 2016 | 0–3 | 0.0% | #160 | 1,451 | 0 | 0 |
| 21 | — | — | — | — | — | — | — | 2017 | 1–2 | 33.3% | #166 | 1,497 | 0 | 0 |
| 22 | 2013 | 3–2 | 60.0% | #119 | 1,548 | 0 | 0 | 2018 | 0–1 | 0.0% | #185 | 1,479 | 0 | 0 |
| 23 | 2014 | 4–12 | 25.0% | #163 | 1,472 | 0 | 0 | 2019 | 0–4 | 0.0% | #147 | 1,507 | 0 | 0 |
| 24 | — | — | — | — | — | — | — | 2020 | 1–4 | 20.0% | #149 | 1,501 | 0 | 0 |
| 25 | 2016 | 0–1 | 0.0% | #243 | 1,466 | 0 | 0 | 2021 | 0–2 | 0.0% | #192 | 1,514 | 0 | 0 |
| 27 | 2018 | 0–1 | 0.0% | #290 | 1,471 | 0 | 0 | — | — | — | — | — | — | — |
| 30 | 2021 | 0–1 | 0.0% | #518 | 1,421 | 0 | 0 | — | — | — | — | — | — | — |
Seasons are aligned by the age each player spent most of that calendar year. 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.
| Age | Katarzyna Piter | Barbara Haas | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Yr | Hard | Clay | Grass | |||||||||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | |||
| 16 | 2007 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 2012 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 18 | 2009 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 2010 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | 2015 | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2016 | 0 | 2 | 2 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2017 | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% | — | — | — | — |
| 22 | 2013 | 3 | 2 | 5 | 60.0% | — | — | — | — | — | — | — | — | 2018 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 23 | 2014 | 1 | 7 | 8 | 12.5% | 3 | 4 | 7 | 42.9% | 0 | 1 | 1 | 0.0% | 2019 | 0 | 1 | 1 | 0.0% | 0 | 3 | 3 | 0.0% | — | — | — | — |
| 24 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2020 | 1 | 3 | 4 | 25.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 25 | 2016 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 2021 | — | — | — | — | 0 | 2 | 2 | 0.0% | — | — | — | — |
| 27 | 2018 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 2021 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 4 | 10 | 14 | 28.6% | 4 | 8 | 12 | 33.3% | 0 | 2 | 2 | 0.0% | — | 1 | 9 | 10 | 10.0% | 1 | 10 | 11 | 9.1% | — | — | — | — |
Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 24/28 of Katarzyna Piter's and 20/21 of Barbara Haas's main draw matches. Sample is shown as matches with detailed serve and return statistics / total main draw matches. Bold green marks the stronger value when both stat samples contain at least 5 matches; lower is better for DFs/M.
| Age | Katarzyna Piter | Barbara Haas | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Sample | Aces/M | DFs/M | 1st Sv% | 1st Pts% | 2nd Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% | Yr | Sample | Aces/M | DFs/M | 1st Sv% | 1st Pts% | 2nd Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% | |
| 16 | 2007 | 1/1 | 0.0 | 5.0 | 71.7% | 55.8% | 41.2% | 33.3% | 50.0% | 51.7% | 34.4% | 2012 | 1/1 | 1.0 | 11.0 | 62.7% | 50.0% | 21.1% | 54.2% | 66.7% | 39.2% | 55.7% |
| 18 | 2009 | 1/1 | 0.0 | 4.0 | 58.6% | 17.6% | 16.7% | 25.0% | 0.0% | 17.2% | 31.7% | — | —/— | — | — | — | — | — | — | — | — | — |
| 19 | 2010 | 2/2 | 2.0 | 6.0 | 56.8% | 58.7% | 25.9% | 25.0% | 73.5% | 44.4% | 36.2% | 2015 | 1/2 | 0.0 | 8.0 | 73.7% | 51.5% | 44.4% | 67.7% | 29.2% | 49.6% | 46.0% |
| 20 | — | —/— | — | — | — | — | — | — | — | — | — | 2016 | 3/3 | 0.0 | 6.7 | 65.0% | 53.8% | 28.6% | 48.5% | 52.8% | 45.2% | 46.4% |
| 21 | — | —/— | — | — | — | — | — | — | — | — | — | 2017 | 3/3 | 1.3 | 6.3 | 62.9% | 58.2% | 41.4% | 40.1% | 49.0% | 53.5% | 44.9% |
| 22 | 2013 | 5/5 | 0.8 | 2.6 | 63.3% | 59.2% | 48.4% | 64.9% | 53.1% | 54.9% | 43.8% | 2018 | 1/1 | 0.0 | 0.0 | 62.2% | 42.9% | 52.9% | 33.3% | 0.0% | 46.7% | 33.9% |
| 23 | 2014 | 12/16 | 1.8 | 4.4 | 63.1% | 53.8% | 40.3% | 51.4% | 42.0% | 49.0% | 38.8% | 2019 | 4/4 | 2.3 | 6.3 | 59.7% | 57.5% | 33.7% | 39.3% | 40.0% | 48.0% | 42.8% |
| 24 | — | —/— | — | — | — | — | — | — | — | — | — | 2020 | 5/5 | 1.0 | 7.0 | 58.8% | 57.1% | 31.0% | 46.6% | 34.4% | 46.9% | 34.8% |
| 25 | 2016 | 1/1 | 0.0 | 4.0 | 57.7% | 50.0% | 36.4% | 28.6% | 33.3% | 44.2% | 40.0% | 2021 | 2/2 | 1.0 | 8.5 | 60.0% | 62.5% | 25.7% | 36.7% | 63.6% | 47.5% | 46.8% |
| 27 | 2018 | 1/1 | 1.0 | 2.0 | 57.8% | 57.7% | 47.4% | 0.0% | 25.0% | 53.3% | 27.5% | — | —/— | — | — | — | — | — | — | — | — | — |
| 30 | 2021 | 1/1 | 3.0 | 4.0 | 56.3% | 65.0% | 41.9% | 37.5% | 42.9% | 54.9% | 35.3% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | — | 24/28 | 1.4 | 4.0 | 62.0% | 54.4% | 40.1% | 46.5% | 44.5% | 48.9% | 38.6% | — | 20/21 | 1.1 | 6.8 | 61.8% | 56.1% | 33.5% | 44.2% | 43.0% | 47.7% | 42.4% |
Seasons are aligned by the age each player spent most of that calendar year. 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.
| Age | Katarzyna Piter | Barbara Haas | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 16 | 2007 | 1498 | 108.9 | +0.50 | +4.61 | 0.712 | 43.0% | — | — | — | 0.0% | -2.50 | — | — | — | -0.18 | 2012 | 1485 | 98.4 | -0.27 | -2.44 | 0.916 | 46.4% | — | — | — | 33.3% | -2.00 | 0–1 | — | — | +0.09 |
| 18 | 2009 | 1492 | 93.6 | -2.41 | -1.70 | 0.383 | 25.7% | — | — | — | 0.0% | -6.00 | — | — | — | -0.06 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 2010 | 1506 | 101.0 | -1.13 | -0.93 | 0.651 | 40.4% | — | — | — | 40.0% | -1.60 | 1–0 | 1–0 | — | +0.16 | 2015 | 1465 | 102.2 | -1.10 | -0.84 | 0.914 | 47.8% | — | — | — | 33.3% | -2.00 | 0–2 | 2–1 (67%) | — | -0.09 |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2016 | 1452 | 100.9 | -3.71 | +1.47 | 0.846 | 46.1% | — | — | — | 14.3% | -1.57 | 0–1 | 0–1 | — | -0.05 |
| 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2017 | 1498 | 109.1 | -0.19 | -0.07 | 0.965 | 49.0% | — | — | — | 44.4% | -0.45 | 1–2 (33%) | 1–0 | — | 0.00 |
| 22 | 2013 | 1548 | 110.2 | -0.66 | -1.69 | 0.971 | 49.7% | +15 | — | — | 53.8% | +0.08 | 2–1 (67%) | 1–1 | — | -0.22 | 2018 | 1479 | 99.4 | +2.16 | +1.98 | 0.635 | 39.3% | — | — | — | 0.0% | -4.50 | — | — | — | -0.26 |
| 23 | 2014 | 1473 | 94.4 | -4.47 | -3.09 | 0.761 | 44.1% | +3 | +81 | — | 28.9% | -1.76 | 3–3 (50%) | 1–3 (25%) | — | +0.10 | 2019 | 1508 | 108.4 | -2.86 | -1.01 | 0.824 | 45.3% | — | -19 | — | 11.1% | -2.44 | 0–1 | — | — | -0.13 |
| 24 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2020 | 1502 | 104.1 | -2.86 | -2.82 | 0.655 | 41.1% | +54 | — | — | 18.2% | -2.54 | 1–0 | 0–1 | — | 0.00 |
| 25 | 2016 | 1467 | 92.6 | -2.75 | -6.59 | 0.717 | 41.9% | — | — | — | 0.0% | -3.50 | — | — | — | +0.11 | 2021 | 1515 | 99.0 | -1.25 | -2.03 | 0.891 | 47.1% | — | — | — | 0.0% | -2.25 | — | 0–1 | — | -0.11 |
| 26 | 2017 | 1449 | 88.2 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2022 | 1499 | 98.7 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 2018 | 1471 | 98.5 | -0.69 | -1.43 | 0.588 | 39.6% | — | — | — | 0.0% | -3.00 | — | — | — | -0.09 | 2023 | 1486 | 96.1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2019 | 1466 | 99.7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 2021 | 1421 | 87.4 | +0.59 | +3.47 | 0.783 | 44.2% | — | — | — | 33.3% | -1.67 | 0–1 | — | — | -0.20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 2022 | 1415 | 97.0 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 35 | 2026 | 1403 | 97.4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1575 | 92.7 | -2.67 | -2.04 | 0.754 | 43.9% | +8 | +81 | — | 31.3% | -1.62 | 6–5 (55%) | 3–4 (43%) | 102.2 | -1.36 | — | 1544 | 105.4 | -1.96 | -0.97 | 0.810 | 45.0% | +54 | -19 | — | 21.6% | -1.98 | 2–7 (22%) | 3–4 (43%) | 94.9 | -2.62 |
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 |
|---|---|---|---|---|---|
| Annika Beck | 0 | 2 | 2 | Jul 17, 2014 | H2H |
| Petra Kvitova | 0 | 1 | 1 | Jun 23, 2021 | H2H |
| Zarina Diyas | 0 | 1 | 1 | May 23, 2018 | H2H |
| Anna Karolina Schmiedlova | 0 | 1 | 1 | Sep 22, 2016 | H2H |
| Misaki Doi | 0 | 1 | 1 | Sep 18, 2014 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Kateryna Baindl | 0 | 1 | 1 | Jul 15, 2021 | H2H |
| Kristina Mladenovic | 0 | 1 | 1 | Apr 22, 2021 | H2H |
| Veronika Kudermetova | 0 | 1 | 1 | Nov 12, 2020 | H2H |
| Su-Wei Hsieh | 0 | 1 | 1 | Sep 29, 2020 | H2H |
| Victoria Azarenka | 0 | 1 | 1 | Sep 2, 2020 | H2H |