Two players' matches against each other and together, and their chances if they met now.
Over their 3 matches against each other with a score (not walkovers), all disciplines.
| Measure | Boyan Yu | Heidi Hartmann |
|---|---|---|
| Matches won | 2 | 1 |
| Sets won | 5 | 3 |
| Points won | 15951.6% | 14948.4% |
| Average winning margin | 5.5 points | 1.0 points |
| Biggest win | 21-16, 18-21, 21-17+6 points · 17 Jan 2025 · mixed doubles | 21-17, 16-21, 21-19+1 points · 16 Jan 2026 · mixed doubles |
2 of 3 matches went to a deciding set. Closest: Heidi Hartmann won 21-17, 16-21, 21-19 (by 1 point) on 16 Jan 2026.
Current ratings in each discipline both play, and Boyan Yu's chance of winning against Heidi Hartmann. In doubles, the chance is with equally rated partners: a pair's rating is the sum of its players'.
Rating at the end of each week
From Boyan Yu's side, newest first
| Date | Opponents | Result | Win chance | Rating |
|---|---|---|---|---|
| 16 Jan 2026 | Heidi Hartmann 1729 / Daniel Standal 1399with Marlen Nygård 1578NTNUI Kretsmesterskap Midtnorsk Badmintonkrets Sør 2026 (SEN A)T7049 30152+48024 vs 26665+17647 | Lost −117-21, 21-16, 19-21 | 81% | 1739−2.8 |
| 17 Jan 2025 | Fredrik Lian 1753 / Heidi Hartmann 1693with Nora Omdal 1726Ålesund Kretsmesterskap Midt-Norge Sør (SEN A)T6918 17745+17647 vs 20987+30152 | Won +621-16, 18-21, 21-17 | 75% | 1864+2.2 |
| 20 Nov 2022 | Fredrik Lian 1761 / Heidi Hartmann 1588with Tyra Friisenfeldt 17181. div Midt-Norge Grunnspill (1. MD)L9739 17647+23129 vs 20987+30152 | Won +521-18, 21-19 | 66% | 1722+3.4 |
Rating at the end of each week
Met 3 times in mixed doubles: Boyan Yu won 2, lost 1.
| Measure | Boyan Yu | Heidi Hartmann |
|---|---|---|
| Matches won | 2 | 1 |
| Sets won | 5 | 3 |
| Points won | 15951.6% | 14948.4% |
| Average winning margin | 5.5 points | 1.0 points |
| Biggest win | 21-16, 18-21, 21-17+6 points · 17 Jan 2025 | 21-17, 16-21, 21-19+1 points · 16 Jan 2026 |
2 of 3 matches went to a deciding set. Closest: Heidi Hartmann won 21-17, 16-21, 21-19 (by 1 point) on 16 Jan 2026.
Rating at the end of each week