Oregon State def. Portland State 3-0 Volleyball (Sep 18)

FinalFri, Sep 18, 2026

0:3

Oregon St. beat visiting Portland St. 3-0 (25-17, 25-17, 25-14) on Fri, Sep 18, 2026. Oregon St.'s Taylor Treahy led with 16 kills, and Isabel Bertelsen added 17 digs.

Data through Nov 3, 1:50 PM CT · final Sep 18

Set	1	2	3	Sets
PORTST	17	17	14	0
ORE ST	25	25	25	3

Win probability

Oregon St. above 50 · Portland St. below

Biggest swing: 2.0% to Portland St. — set 1, PORTST 15-15 ORE ST. Attack error by Taylor Treahy. ORE ST win probability 89% → 87%.

Pre-match

Season fit · includes this match

PORTST 11.8%88.2% ORE ST

Portland St. wins

3-0

1.6%

3-1

3.7%

3-2

6.5%

Oregon St. wins

3-0

41.6%

3-1

31.6%

3-2

15.0%

PORTST break %: 38.6% vs this opp
ORE ST break %: 47.7% vs this opp

Exact Markov model on each team's RallyIQ serve and receive strength, adjusted for schedule and applied to this matchup (D1 average break % 42.5%). Ratings use the whole season, including this match. Gold = actual result.

Top plays

Largest win-probability swings

01
Taylor TreahyAttack error+2.0%
Attack error by Taylor Treahy
Set 1 · PORTST 15-15 ORE ST · PORTST 11% → 13%
02
Alivia EikenbergKill+1.9%
Kill by Alivia Eikenberg (set by Asya Akbulut)
Set 1 · PORTST 9-6 ORE ST · PORTST 15% → 17%
03
Alivia EikenbergAttack error+1.8%
Attack error by Alivia Eikenberg
Set 1 · PORTST 15-17 ORE ST · ORE ST 88% → 90%
04
Unlogged pointNCAA feed gap+1.8%
Point Portland St. (not logged in NCAA feed)
Set 1 · PORTST 13-13 ORE ST · PORTST 11% → 13%
05
Oregon St.Ace+1.7%
Oregon St. ace on Alivia Eikenberg
Set 1 · PORTST 10-9 ORE ST · ORE ST 84% → 85%
06
AC FroehlichKill+1.7%
Kill by AC Froehlich (set by Jackie Matias)
Set 1 · PORTST 10-10 ORE ST · ORE ST 85% → 87%
07
Portland St.Ace+1.7%
Portland St. ace on Yasemin Narlioglu
Set 1 · PORTST 5-2 ORE ST · PORTST 15% → 16%
08
Taylor TreahyKill+1.6%
Kill by Taylor Treahy (set by Jackie Matias)
Set 1 · PORTST 11-12 ORE ST · ORE ST 87% → 89%

Box score

Official NCAA box

Portland St.away

Player	S	K	E	TA	Hit%	AST	SA	SE	DIG	RE	BS	BA	BLK	PTS
19Ashley RepettiOH	3	5	2	24	.125	0	1	0	6	1	1	0	1	7
23Ava BlascziekS	3	0	0	2	.000	11	5	0	3	0	0	0	0	5
18Alivia EikenbergOH	3	3	2	18	.056	0	1	0	7	2	0	0	0	4
3Brenna CoffmanMB	3	4	0	7	.571	1	0	0	2	0	0	0	0	4
20Willow WatsonMB	2	2	3	9	-.111	0	0	0	2	0	1	0	1	3
21Reese BiesemeyerMB	1	1	0	3	.333	0	0	1	0	0	0	1	0.5	1.5
11Katarina KosicOPP	3	4	1	13	.231	0	0	0	1	0	1	2	2	6
13Jessica TruongL/DS	3	0	0	0	–	1	0	0	6	1	0	0	0	0
16Katie BrewerMB	2	3	3	9	.000	0	0	0	1	0	0	1	0.5	3.5
4Asya AkbulutS	2	0	0	0	–	7	0	0	0	0	0	0	0	0
15Xanthe OcampoL/DS	2	0	0	0	–	0	0	0	1	0	0	0	0	0
8Maryn HallOH	1	0	3	7	-.429	0	0	1	0	0	0	0	0	0
1Alyssandra OrdonaL/DS	1	0	0	0	–	0	0	0	1	0	0	0	0	0
9Magdalena RanitovicOH	1	0	0	0	–	0	0	0	1	0	0	0	0	0
2Paige StepaniukL/DS	1	0	0	0	–	0	0	0	0	0	0	0	0	0
Team totals		22	14	92	.087	20	7	2	31	7	3	4	5	48

Oregon St.home

Player	S	K	E	TA	Hit%	AST	SA	SE	DIG	RE	BS	BA	BLK	PTS
29Taylor TreahyOH	3	16	5	31	.355	2	0	1	4	0	0	2	1	17
3AC FroehlichOH	3	9	2	15	.467	0	2	2	2	3	0	1	0.5	11.5
8Taray TelaMB	3	8	1	15	.467	0	0	0	0	0	2	3	3.5	11.5
1Alana MarrsMB	3	6	1	13	.385	0	0	0	2	0	1	1	1.5	7.5
14Jackie MatiasS	3	5	0	6	.833	38	2	2	11	0	0	0	0	7
11Yasemin NarliogluL/DS	3	0	0	0	–	1	0	1	4	1	0	0	0	0
15Cheyenne GreenOH	3	5	1	9	.444	0	0	0	1	0	0	1	0.5	5.5
16Beatrice SpadaOPP	3	0	0	0	–	0	2	2	3	0	0	0	0	2
4Isabel BertelsenL/DS	3	0	0	0	–	4	1	0	17	1	0	0	0	1
5Kama GoldsteinDS	3	0	0	0	–	2	0	1	3	1	0	0	0	0
19Ivana CvetkovicMB	2	1	0	3	.333	0	0	0	0	0	0	0	0	1
Team totals		50	10	92	.435	47	7	9	47	7	3	8	7	75

Starters listed first. BLK is the NCAA total: a solo counts 1, a block assist ½. Recaps and press releases usually quote solos + assists instead, so the same night can be reported as a bigger, whole number. The box score is the source for every counting stat on this page.

Momentum

Point differential by rally

Longest run 5 PORTST · ORE ST 5

Set 1

17-25

Longest run 5 PORTSTORE ST 5

Set 2

17-25

Longest run 3 PORTSTORE ST 4

Set 3

14-25

Longest run 4 PORTSTORE ST 5

Bars above the line = Oregon St. leads, below = Portland St. leads. Bright bars are points inside a run of 3+.

Rotations

Sideout and break % by rotation slot

Portland St.

No clean sets to split.

Oregon St.

No clean sets to split.

Slot = rotations since the start of the set (slot 1 is the lineup a team opened the set in), not a fixed player alignment. Only clean sets count (0 of 3 here): sets where the NCAA play-by-play has gaps or score corrections are left out because the rotation can't be tracked through them.

Rally log

123 rallies

#	PORTST-ORE ST	Srv	Point	End	Player	Setter / blockers / passer	WP Δ
Set 1
1	0-1	ORE ST	ORE ST	Kill	Taylor Treahy	set Jackie Matias	+1.1
2–3	1-2		PORTST · ORE ST	NCAA feed gap2 points not loggedWhy? The NCAA play-by-play skipped these points: the score changed but no play was logged, so we know who won each point, not how. They count in the score, momentum and win probability, but no player is credited. Box-score stats come from the official box score and are unaffected.			+0.2
4	2-2	PORTST	PORTST×5	Ace	Portland St.	aced AC Froehlich	+1.2
5	3-2		PORTST	NCAA feed gap1 point not loggedWhy? The NCAA play-by-play skipped these points: the score changed but no play was logged, so we know who won each point, not how. They count in the score, momentum and win probability, but no player is credited. Box-score stats come from the official box score and are unaffected.			+1.4
6	4-2	PORTST	PORTST×5	Ace	Portland St.		+1.5
7	5-2	PORTST	PORTST×5	Ace	Portland St.	aced Yasemin Narlioglu	+1.7
8	5-3		ORE ST	NCAA feed gap1 point not loggedWhy? The NCAA play-by-play skipped these points: the score changed but no play was logged, so we know who won each point, not how. They count in the score, momentum and win probability, but no player is credited. Box-score stats come from the official box score and are unaffected.			+1.1
9	5-4	ORE ST	ORE ST	Ace	Oregon St.	aced Alivia Eikenberg	+1.5
10	6-4	ORE ST	PORTST	Serve err	Oregon St.		+1.3
11	6-5		ORE ST	NCAA feed gap1 point not loggedWhy? The NCAA play-by-play skipped these points: the score changed but no play was logged, so we know who won each point, not how. They count in the score, momentum and win probability, but no player is credited. Box-score stats come from the official box score and are unaffected.			+1.1
12	7-5	ORE ST	PORTST	Kill	Reese Biesemeyer	set Ava Blascziek	+1.3
13	7-6	PORTST	ORE ST	Serve err	Portland St.		+1.1
14	8-6	ORE ST	PORTST	Serve err	Oregon St.		+1.4
15	9-6	PORTST	PORTST	Kill	Alivia Eikenberg	set Asya Akbulut	+1.9
16	9-7	PORTST	ORE ST	Kill	AC Froehlich	set Jackie Matias	+1.2
17	10-7	ORE ST	PORTST	Kill	Brenna Coffman	set Asya Akbulut	+1.5
18	10-8	PORTST	ORE ST×3	Kill	AC Froehlich	set Jackie Matias	+1.3
19	10-9	ORE ST	ORE ST×3	Ace	Oregon St.	aced Alivia Eikenberg	+1.7
20	10-10	ORE ST	ORE ST×3	Kill	AC Froehlich	set Jackie Matias	+1.7
21	11-10	ORE ST	PORTST	Kill	Katarina Kosic	set Asya Akbulut	+1.4
22	11-11	PORTST	ORE ST×3	Serve err	Portland St.		+1.3
23	11-12	ORE ST	ORE ST×3	Kill	Taylor Treahy	set Jackie Matias	+1.6
24	11-13	ORE ST	ORE ST×3	Kill	Taylor Treahy		+1.5
25	12-13	ORE ST	PORTST	Blocked	AC Froehlich	blk Reese Biesemeyer, Katarina Kosic	+1.1
26	13-13		PORTST	NCAA feed gap1 point not loggedWhy? The NCAA play-by-play skipped these points: the score changed but no play was logged, so we know who won each point, not how. They count in the score, momentum and win probability, but no player is credited. Box-score stats come from the official box score and are unaffected.			+1.8
27	13-14	PORTST	ORE ST	Kill	Taylor Treahy	set Jackie Matias	+1.3
28	13-15	ORE ST	ORE ST	Kill	Taray Tela	set Jackie Matias	+1.6
29	14-15	ORE ST	PORTST	Serve err	Oregon St.		+1.2
30	15-15	PORTST	PORTST	Attack err	Taylor Treahy		+2.0
31	15-16	PORTST	ORE ST	Kill	Taray Tela	set Jackie Matias	+1.5
32	15-17	ORE ST	ORE ST	Attack err	Alivia Eikenberg		+1.8
33	16-17	ORE ST	PORTST	Kill	Willow Watson	set Ava Blascziek	+1.3
34	16-18	PORTST	ORE ST×5	Kill	Cheyenne Green	set Jackie Matias	+1.4
35	16-19	ORE ST	ORE ST×5	Kill	AC Froehlich	set Jackie Matias	+1.5
36	16-20	ORE ST	ORE ST×5	Ace	Oregon St.	aced Ashley Repetti	+1.1
37	16-21	ORE ST	ORE ST×5	Kill	Cheyenne Green	set Jackie Matias	+0.7
38	16-22	ORE ST	ORE ST×5	Ace	Oregon St.	aced Jessica Truong	+0.4
39	17-22	ORE ST	PORTST	Serve err	Oregon St.		+0.1
40	17-23		ORE ST	NCAA feed gap1 point not loggedWhy? The NCAA play-by-play skipped these points: the score changed but no play was logged, so we know who won each point, not how. They count in the score, momentum and win probability, but no player is credited. Box-score stats come from the official box score and are unaffected.			+0.2
41	17-24	ORE ST	ORE ST×3	Kill	Jackie Matias	set Taylor Treahy	+0.1
42	17-25	ORE ST	ORE ST×3	Kill	Alana Marrs	set Jackie Matias	·
Set 2
1	0-1		ORE ST	NCAA feed gap1 point not loggedWhy? The NCAA play-by-play skipped these points: the score changed but no play was logged, so we know who won each point, not how. They count in the score, momentum and win probability, but no player is credited. Box-score stats come from the official box score and are unaffected.			+0.6
2	0-2	ORE ST	ORE ST×3	Kill	AC Froehlich	set Isabel Bertelsen	+0.7
3	0-3	ORE ST	ORE ST×3	Ace	Oregon St.		+0.6
4	1-3		PORTST	NCAA feed gap1 point not loggedWhy? The NCAA play-by-play skipped these points: the score changed but no play was logged, so we know who won each point, not how. They count in the score, momentum and win probability, but no player is credited. Box-score stats come from the official box score and are unaffected.			+0.5
5	1-4	PORTST	ORE ST×4	Kill	Cheyenne Green	set Jackie Matias	+0.5
6	1-5	ORE ST	ORE ST×4	Attack err	Willow Watson		+0.5
7	1-6	ORE ST	ORE ST×4	Blocked	Alivia Eikenberg	blk Alana Marrs	+0.4
8	1-7	ORE ST	ORE ST×4	Kill	Cheyenne Green		+0.3
9	2-7	ORE ST	PORTST	Blocked	Taylor Treahy	blk Willow Watson	+0.2
10	2-8	PORTST	ORE ST	Kill	Taylor Treahy		+0.3
11	2-9	ORE ST	ORE ST	Attack err	Willow Watson		+0.3
12	3-9	ORE ST	PORTST	Attack err	Willow Watson		+0.2
13	3-10	PORTST	ORE ST	Kill	Taylor Treahy	set Jackie Matias	+0.2
14	3-11	ORE ST	ORE ST	Kill	AC Froehlich	set Jackie Matias	+0.2
15	4-11	ORE ST	PORTST	Attack err	AC Froehlich		+0.1
16	5-11	PORTST	PORTST	Ace	Portland St.	aced AC Froehlich	+0.2
17	5-12	PORTST	ORE ST	Kill	Alana Marrs	set Jackie Matias	+0.2
18	6-12	ORE ST	PORTST	Kill	Brenna Coffman	set Asya Akbulut	+0.2
19	6-13	PORTST	ORE ST	Kill	Jackie Matias	set Isabel Bertelsen	+0.2
20	7-13	ORE ST	PORTST	Kill	Alivia Eikenberg	set Asya Akbulut	+0.2
21	8-13	PORTST	PORTST	Blocked	Taylor Treahy	blk Ashley Repetti	+0.3
22	8-14	PORTST	ORE ST	Kill	Taylor Treahy		+0.3
23	9-14	ORE ST	PORTST	Attack err	Taray Tela		+0.2
24	10-14	PORTST	PORTST	Ace	Portland St.	aced Isabel Bertelsen	+0.4
25	10-15	PORTST	ORE ST	Kill	Taray Tela	set Jackie Matias	+0.4
26	10-16	ORE ST	ORE ST	Kill	Alana Marrs	set Jackie Matias	+0.4
27	11-16	ORE ST	PORTST	Serve err	Oregon St.		+0.2
28	11-17	PORTST	ORE ST	Kill	Taylor Treahy	set Jackie Matias	+0.3
29	12-17	ORE ST	PORTST	Kill	Willow Watson		+0.2
30	12-18	PORTST	ORE ST×3	Kill	Cheyenne Green	set Jackie Matias	+0.3
31	12-19		ORE ST	NCAA feed gap1 point not loggedWhy? The NCAA play-by-play skipped these points: the score changed but no play was logged, so we know who won each point, not how. They count in the score, momentum and win probability, but no player is credited. Box-score stats come from the official box score and are unaffected.			+0.2
32	12-20	ORE ST	ORE ST×3	Kill	Alana Marrs	set Jackie Matias	+0.1
33	13-20	ORE ST	PORTST	Kill	Brenna Coffman	set Ava Blascziek	·
34	14-20		PORTST	NCAA feed gap1 point not loggedWhy? The NCAA play-by-play skipped these points: the score changed but no play was logged, so we know who won each point, not how. They count in the score, momentum and win probability, but no player is credited. Box-score stats come from the official box score and are unaffected.			+0.1
35	14-21	PORTST	ORE ST×3	Kill	Ivana Cvetkovic		+0.1
36	14-22		ORE ST	NCAA feed gap1 point not loggedWhy? The NCAA play-by-play skipped these points: the score changed but no play was logged, so we know who won each point, not how. They count in the score, momentum and win probability, but no player is credited. Box-score stats come from the official box score and are unaffected.			+0.1
37	14-23	ORE ST	ORE ST×3	Serve err	Oregon St.		·
38	15-23	ORE ST	PORTST×3	Kill	Ashley Repetti	set Asya Akbulut	·
39	16-23		PORTST	NCAA feed gap1 point not loggedWhy? The NCAA play-by-play skipped these points: the score changed but no play was logged, so we know who won each point, not how. They count in the score, momentum and win probability, but no player is credited. Box-score stats come from the official box score and are unaffected.			·
40	17-23	PORTST	PORTST×3	Attack err	Taylor Treahy		·
41	17-24	PORTST	ORE ST	Kill	Jackie Matias	set Kama Goldstein	·
42	17-25	ORE ST	ORE ST	Ace	Oregon St.		·
Set 3
1	0-1	ORE ST	ORE ST×5	Ace	Oregon St.		+0.4
2	0-2	ORE ST	ORE ST×5	Kill	Taylor Treahy	set Jackie Matias	+0.3
3	0-3	ORE ST	ORE ST×5	Blocked	Katie Brewer	blk Taray Tela	+0.3
4	0-4	ORE ST	ORE ST×5	Blocked	Maryn Hall	blk Taray Tela	+0.2
5	0-5	ORE ST	ORE ST×5	Kill	Taylor Treahy	set Taray Tela	+0.2
6	1-5	ORE ST	PORTST	Serve err	Oregon St.		+0.1
7	1-6	PORTST	ORE ST×4	Kill	Taray Tela	set Jackie Matias	+0.1
8–11	2-9		PORTST · ORE ST 3	NCAA feed gap4 points not loggedWhy? The NCAA play-by-play skipped these points: the score changed but no play was logged, so we know who won each point, not how. They count in the score, momentum and win probability, but no player is credited. Box-score stats come from the official box score and are unaffected.			+0.3
12	2-10	PORTST	ORE ST×4	Kill	Taylor Treahy	set Jackie Matias	+0.1
13	2-11	ORE ST	ORE ST×4	Kill	Taylor Treahy	set Yasemin Narlioglu	+0.1
14	2-12		ORE ST	NCAA feed gap1 point not loggedWhy? The NCAA play-by-play skipped these points: the score changed but no play was logged, so we know who won each point, not how. They count in the score, momentum and win probability, but no player is credited. Box-score stats come from the official box score and are unaffected.			·
15	2-13	ORE ST	ORE ST×4	Bad set	Ashley Repetti		·
16	3-13	ORE ST	PORTST	Kill	Brenna Coffman		·
17	3-14	PORTST	ORE ST	Attack err	Brenna Coffman		·
18	4-14	ORE ST	PORTST	Kill	Ashley Repetti	set Jessica Truong	·
19	4-15	PORTST	ORE ST×4	Kill	Taylor Treahy	set Jackie Matias	·
20	4-16	ORE ST	ORE ST×4	Serve err	Oregon St.		·
21	4-17	ORE ST	ORE ST×4	Kill	Alana Marrs	set Jackie Matias	·
22	4-18	ORE ST	ORE ST×4	Attack err	Katie Brewer		·
23	5-18	ORE ST	PORTST×4	Kill	Ashley Repetti	set Ava Blascziek	·
24	6-18		PORTST	NCAA feed gap1 point not loggedWhy? The NCAA play-by-play skipped these points: the score changed but no play was logged, so we know who won each point, not how. They count in the score, momentum and win probability, but no player is credited. Box-score stats come from the official box score and are unaffected.			·
25	7-18	PORTST	PORTST×4	Serve err	Portland St.		·
26	8-18	PORTST	PORTST×4	Ace	Portland St.	aced Kama Goldstein	·
27–31	11-20		PORTST 3 · ORE ST 2	NCAA feed gap5 points not loggedWhy? The NCAA play-by-play skipped these points: the score changed but no play was logged, so we know who won each point, not how. They count in the score, momentum and win probability, but no player is credited. Box-score stats come from the official box score and are unaffected.			·
32	11-21	PORTST	ORE ST	Bad set	Ava Blascziek		·
33	11-22	ORE ST	ORE ST	Kill	Taray Tela	set Jackie Matias	·
34	12-22	ORE ST	PORTST	Kill	Katarina Kosic	set Ava Blascziek	·
35	12-23	PORTST	ORE ST	Kill	Taylor Treahy	set Jackie Matias	·
36	13-23		PORTST	NCAA feed gap1 point not loggedWhy? The NCAA play-by-play skipped these points: the score changed but no play was logged, so we know who won each point, not how. They count in the score, momentum and win probability, but no player is credited. Box-score stats come from the official box score and are unaffected.			·
37	13-24	PORTST	ORE ST	Kill	AC Froehlich	set Jackie Matias	·
38	14-24	ORE ST	PORTST	Kill	Ashley Repetti	set Ava Blascziek	·
39	14-25	PORTST	ORE ST	Kill	Taylor Treahy	set Jackie Matias	·

Score shown after each rally, Portland St. first. WP Δ = match win-probability points gained, colored by the team that gained them.“NCAA feed gap” rows mark points the NCAA play-by-play never logged (tap Why? for details).

Oregon St. def. Portland St. 3–0