Teams

Summer Aces-Stiebritz

Coed Social League · 6.5

8 players · average NTRP 3.06 / NORTHWEST WASHINGTON

View scouting list →
Schedule6 played
2026-08-11vs YeLost 12
L#1 Female DoublesZIYANG ZHANG / Colleen Tracy vs Chulin Geng / Huixin Lai3-6
W#1 Male DoublesMark Waldron / Jordan Stiebritz vs Xi Chen / Aron Su6-3
L#1 Male SinglesJordan Stiebritz vs Aron Su3-6
2026-08-04vs EDW-Sea-PengLost 13
L#1 Female DoublesAllison Apfelbaum / Colleen Tracy vs Xiayi Li / Xiaozhen Liu3-6
L#1 Female SinglesAllison Apfelbaum vs Xiayi Li2-6
W#1 Male DoublesJordan Stiebritz / Mark Waldron vs James Fan / Harold Wu6-5
L#1 Male SinglesJordan Stiebritz vs Tong Wu5-6
2026-07-28vs LayWon 10
W#1 Female DoublesMan Feng / Sihui Wang vs Lindsey Eng / Megan Sng6-2
2026-07-21vs Summer-Social-BC-FarokhzadLost 04
L#1 Female DoublesAllison Apfelbaum / Colleen Tracy vs Lindsey Nelson / Melissa Scott2-6
L#1 Female SinglesAllison Apfelbaum vs Melissa Scott2-6
L#1 Male DoublesJordan Stiebritz / Mark Waldron vs Axel Andrews / Nicholas Zura3-6
L#1 Male SinglesJordan Stiebritz vs Axel Andrews3-6
2026-07-14vs Serve and Slice’em-LukWon 10
W#1 Female SinglesSihui Wang vs Ge Wang6-0
2026-07-07vs YeSplit 11
W#1 Female DoublesMan Feng / Sihui Wang vs Xiaoyi Ye / Huixin Lai6-3
L#1 Male SinglesJordan Stiebritz vs Jason Bak2-6
A tie can be incomplete. Tell us if someone is missing.
i
Grouped by tie — one fixture, several lines. A line shows only when a player on it is someone we have indexed, so an early-season tie for a newly-added team can look short. This also means the line count here will not match the header, which counts individual player appearances.

Flight standings for 6.5 have not been collected yet. Where we have them we show every team in the flight ranked, with this team highlighted. The crawler is still filling in older seasons and flights.

ScoutingWhere each opponent usually plays

Signed-in extra: whether this captain plays strict strength order or mixes it up, from every doubles line they have put out. Create a free account to see it.

Roster averages 2.95 estimated across 8 rated players. No lineup is published in advance, so the column below is where each player has actually been used — a captain's habits are the best available forecast. Sign in and claim your record to see who you have played.

3.13
Mark Waldron
usually #1 Male Doubles 100% · published 3.5
3.08
Man Feng
usually #1 Female Doubles 75%, also #1 Female Singles 25% · published 3
2.99
ZIYANG ZHANG
usually #1 Female Singles 60%, also #1 Female Doubles 40% · published 3
2.97
Sihui Wang
usually #1 Female Doubles 67%, also #1 Female Singles 33% · published 3
2.92
Colleen Tracy
usually #1 Female Doubles 100% · published 3
2.86
Allison Apfelbaum
usually #1 Female Singles 100% · published 3
2.84
Jordan Stiebritz
usually #1 Male Singles 100% · published 3
2.80
Jerry Chen
usually #1 Male Singles 67%, also #1 Male Doubles 33% · published 3
Established pairs

Doubles pairs from this roster with three or more matches together anywhere — ordered by performance against what the rating gap predicted, not by record.

Sihui Wang + Man Feng5169% games+16.8% vs expected
Mark Waldron + Colleen Tracy161148% games+0.2% vs expected
Jordan Stiebritz + Colleen Tracy134 matchesnot enough data
Mark Waldron + Jordan Stiebritz213 matchesnot enough data
Jordan Stiebritz + Allison Apfelbaum213 matchesnot enough data
Sihui Wang + Jerry Chen123 matchesnot enough data
Roster

Ordered by our estimated dynamic rating, which is why two players at the same published level are not tied — a published 4.0 says nothing about where inside the band someone sits. Lines played in this team’s season are shown beside each name.

3.5
Mark Waldron
92W–98L career · 3 lines in 2026
18%81%<1%
3.13
3
Man Feng
35W–41L career · 4 lines in 2026
<1%28%72%
3.08
3
ZIYANG ZHANG
16W–7L career · type S · 5 lines in 2026
<1%52%48%
2.99
3
Sihui Wang
48W–31L career · type A · 3 lines in 2026
<1%58%42%
2.97
3
Colleen Tracy
172W–106L career · 3 lines in 2026
<1%72%28%
2.92
3
Allison Apfelbaum
25W–22L career · 2 lines in 2026
1%84%15%
2.86
3
Jordan Stiebritz
46W–44L career · 4 lines in 2026
1%86%13%
2.84
3
Jerry Chen
6W–7L career · type S · 6 lines in 2026
2%91%7%
2.80

Three percentages are where each player stands right now: the chance they are below their band, inside it, or above it, on the way they are playing this season. The number on the right is our estimated dynamic rating, which USTA never publishes. This is today rather than a forecast of December, because a forecast has to assume future matches and cannot know whether someone will even be offered them. Percentages are blank where a player has too few matches this season, or at a level where the model does not yet beat a base-rate guess; the estimate is a weaker claim than a probability and survives where those do not.

Not affiliated with or endorsed by the USTA. Ratings labelled as published are USTA year-end figures; anything we describe as an estimate is ours, not USTA’s. Match data is from USTA TennisLink.