Iona vs Columbia Volleyball: Columbia Wins 3-1 (Sep 4, 2026)

Final · 4 setsFri, Sep 4, 2026

1:3

Columbia beat visiting Iona 3-1 (17-25, 25-15, 25-19, 25-18) on Fri, Sep 4, 2026. Columbia's Elise Hiemstra led with 19 kills, and Delaney Seaman added 15 digs.

Data through Nov 3, 4:50 PM CT · final Sep 4

Set	1	2	3	4	Sets
IONA	25	15	19	18	1
COLUMB	17	25	25	25	3

Win probability

Columbia above 50 · Iona below

Biggest swing: 3.4% to Columbia — set 3, IONA 19-22 COLUMB. Iona service error. COLUMB win probability 78% → 82%.

Pre-match

Season fit · includes this match

IONA 25.6%74.4% COLUMB

Iona wins

3-0

4.6%

3-1

8.8%

3-2

12.2%

Columbia wins

3-0

26.6%

3-1

28.5%

3-2

19.4%

IONA break %: 41.4% vs this opp
COLUMB break %: 46.5% 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
IonaService error+3.4%
Iona service error
Set 3 · IONA 19-22 COLUMB · COLUMB 78% → 82%
02
Jaylyn SimonKill+3.2%
Kill by Jaylyn Simon (set by Joy Houdre)
Set 3 · IONA 19-21 COLUMB · IONA 19% → 22%
03
Katherine FerngKill+3.2%
Kill by Katherine Ferng (set by Jaylyn Simon)
Set 4 · IONA 15-16 COLUMB · IONA 8% → 12%
04
Charlotte GravleeKill+3.0%
Kill by Charlotte Gravlee
Set 4 · IONA 15-18 COLUMB · COLUMB 91% → 94%
05
Charlotte GravleeKill+2.8%
Kill by Charlotte Gravlee (set by Claire Mo)
Set 3 · IONA 19-23 COLUMB · COLUMB 82% → 84%
06
Claire MoKill+2.7%
Kill by Claire Mo (set by Elise Hiemstra)
Set 4 · IONA 15-17 COLUMB · COLUMB 88% → 91%
07
Cassandra Rohan&Katherine FerngBlock+2.7%
Elena Maynulet stuffed by Cassandra Rohan & Katherine Ferng
Set 2 · IONA 2-2 COLUMB · IONA 44% → 46%
08
Charlotte Gravlee&Dahlia RobertsBlock+2.7%
Julia Leonardo stuffed by Charlotte Gravlee & Dahlia Roberts
Set 4 · IONA 12-15 COLUMB · COLUMB 91% → 93%

Box score

Official NCAA box

Ionaaway

Player	S	K	E	TA	Hit%	AST	SA	SE	DIG	RE	BA	BLK	PTS
12Julia LeonardoOH	4	13	9	44	.091	1	2	0	7	0	0	0	15
14Katherine FerngOH	4	6	1	22	.227	0	0	0	0	0	3	1.5	7.5
4Buse TinazMB	4	3	1	10	.200	0	0	1	4	0	3	1.5	4.5
15Jaylyn SimonS	4	1	0	3	.333	24	0	0	7	0	0	0	1
22Cassandra RohanMB	3	1	2	7	-.143	0	0	0	0	0	1	0.5	1.5
23Alex PatsosOH	2	2	4	11	-.182	0	1	1	5	4	0	0	3
2Sanem BasOH	4	0	0	0	–	0	3	0	3	0	0	0	3
7Avery GaumeL/DS	4	0	0	0	–	2	0	0	9	0	0	0	0
3Grace DanielsS	3	0	0	3	.000	12	1	1	3	0	0	0	1
21Mija JegersOH	2	10	3	23	.304	0	0	2	4	1	0	0	10
18Ezzie ThompsonMB	2	4	0	5	.800	0	0	0	0	0	0	0	4
5Anissa CooperMB	2	1	2	5	-.200	1	0	0	1	0	0	0	1
11Kari SmithOH	2	1	0	2	.500	0	0	1	5	0	0	0	1
16Joy HoudreL/DS	2	0	0	0	–	1	0	0	3	2	0	0	0
10Reese HendersonOH	1	1	0	2	.500	0	0	0	0	0	1	0.5	1.5
Team totals		43	22	137	.153	41	7	6	51	9	8	4	77

Columbiahome

Player	S	K	E	TA	Hit%	AST	SA	SE	DIG	RE	BS	BA	BLK	PTS
2Elise HiemstraOH	4	19	3	39	.410	1	0	0	0	1	0	1	0.5	19.5
9Elena MaynuletOH	4	11	8	28	.107	2	2	0	14	0	0	0	0	13
13Charlotte GravleeOPP	4	7	2	14	.357	2	0	2	1	0	0	5	2.5	9.5
12Maria HappMB	4	6	4	18	.111	1	0	0	4	0	0	1	0.5	6.5
16Clara YuS	4	2	1	5	.200	25	2	2	8	0	0	0	0	4
3Josie ZynczakOH	2	1	1	6	.000	0	0	0	0	0	0	0	0	1
14Avery JonesOPP	4	4	2	13	.154	0	0	0	1	0	1	2	2	6
8Madison HsiehL/DS	4	0	0	0	–	0	3	0	3	0	0	0	0	3
11Delaney SeamanS	4	0	0	0	–	4	2	1	15	4	0	0	0	2
15Claire MoS	4	1	0	2	.500	16	0	0	8	0	0	0	0	1
1Dahlia RobertsOPP	3	2	1	12	.083	0	0	0	5	0	0	3	1.5	3.5
19Ava WangL/DS	1	0	0	0	–	0	0	0	0	0	0	0	0	0
Team totals		53	22	137	.226	51	9	5	59	7	1	12	7	92

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 IONA · COLUMB 8

Set 1

25-17

Longest run 4 IONACOLUMB 3

Set 2

15-25

Longest run 3 IONACOLUMB 5

Set 3

19-25

Longest run 5 IONACOLUMB 8

Set 4

18-25

Longest run 5 IONACOLUMB 5

Bars above the line = Columbia leads, below = Iona leads. Bright bars are points inside a run of 3+.

Rotations

Sideout and break % by rotation slot

Iona

Slot	Sideout %	Break %
1	53%9/17	42%5/12
2	47%8/17	36%5/14
3	35%8/23	27%3/11
4	44%7/16	43%6/14
5	55%6/11	56%9/16
6	71%5/7	55%6/11
All	47%43/91	44%34/78

Columbia

Slot	Sideout %	Break %
1	53%9/17	50%7/14
2	80%8/10	56%10/18
3	73%8/11	47%7/15
4	47%8/17	65%15/23
5	38%6/16	60%9/15
6	71%5/7	0%0/6
All	56%44/78	53%48/91

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 (4 of 4 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

169 rallies

#	IONA-COLUMB	Srv	Point	End	Player	Setter / blockers / passer	WP Δ
Set 1
1	1-0	IONA	IONA×4	Attack err	Clara Yu		+2.0
2	2-0	IONA	IONA×4	Attack err	Elise Hiemstra		+2.2
3	3-0	IONA	IONA×4	Attack err	Elena Maynulet		+2.2
4	4-0	IONA	IONA×4	Kill	Julia Leonardo	set Jaylyn Simon	+2.2
5	4-1	IONA	COLUMB	Kill	Maria Happ	set Clara Yu	+1.5
6	4-2	COLUMB	COLUMB	Attack err	Julia Leonardo		+2.1
7	5-2	COLUMB	IONA	Kill	Katherine Ferng	set Jaylyn Simon	+1.9
8	5-3	IONA	COLUMB	Kill	Josie Zynczak	set Clara Yu	+1.6
9	6-3	COLUMB	IONA×4	Kill	Julia Leonardo	set Jaylyn Simon	+1.9
10	7-3	IONA	IONA×4	Kill	Julia Leonardo	set Grace Daniels	+2.4
11	8-3	IONA	IONA×4	Ace	Iona		+2.3
12	9-3	IONA	IONA×4	Kill	Julia Leonardo	set Avery Gaume	+2.1
13	9-4	IONA	COLUMB	Kill	Elise Hiemstra	set Clara Yu	+1.3
14	10-4	COLUMB	IONA×3	Kill	Julia Leonardo	set Grace Daniels	+1.7
15	11-4	IONA	IONA×3	Ace	Iona		+1.8
16	12-4	IONA	IONA×3	Ace	Iona	aced Elise Hiemstra	+1.5
17	12-5	IONA	COLUMB	Blocked	Alex Patsos	blk Elise Hiemstra, Charlotte Gravlee	+0.8
18	13-5	COLUMB	IONA×4	Kill	Alex Patsos	set Grace Daniels	+1.2
19	14-5	IONA	IONA×4	Ace	Iona	aced Delaney Seaman	+1.1
20	15-5	IONA	IONA×4	Attack err	Elena Maynulet		+0.8
21	16-5	IONA	IONA×4	Ace	Iona	aced Delaney Seaman	+0.5
22	16-6	IONA	COLUMB	Attack err	Julia Leonardo		+0.2
23	17-6	COLUMB	IONA	Kill	Buse Tinaz	set Grace Daniels	+0.4
24	17-7	IONA	COLUMB	Kill	Elena Maynulet	set Claire Mo	+0.2
25	17-8	COLUMB	COLUMB	Kill	Elena Maynulet	set Delaney Seaman	+0.4
26	18-8	COLUMB	IONA	Attack err	Josie Zynczak		+0.5
27	19-8	IONA	IONA	Ace	Iona	aced Delaney Seaman	+0.3
28	19-9	IONA	COLUMB	Kill	Elena Maynulet	set Clara Yu	+0.1
29	20-9	COLUMB	IONA	Attack err	Maria Happ		+0.2
30	21-9	IONA	IONA	Kill	Julia Leonardo	set Jaylyn Simon	+0.1
31	21-10	IONA	COLUMB×3	Kill	Maria Happ	set Clara Yu	·
32	21-11	COLUMB	COLUMB×3	Ace	Columbia	aced Alex Patsos	+0.1
33	21-12	COLUMB	COLUMB×3	Kill	Elise Hiemstra	set Clara Yu	+0.1
34	22-12	COLUMB	IONA	Kill	Julia Leonardo	set Jaylyn Simon	+0.2
35	22-13	IONA	COLUMB	Serve err	Iona		+0.1
36	22-14	COLUMB	COLUMB	Attack err	Anissa Cooper		+0.1
37	23-14	COLUMB	IONA	Kill	Julia Leonardo	set Grace Daniels	+0.2
38	23-15	IONA	COLUMB	Kill	Elise Hiemstra	set Claire Mo	·
39	23-16	COLUMB	COLUMB	Attack err	Alex Patsos		+0.1
40	24-16	COLUMB	IONA	Kill	Cassandra Rohan	set Anissa Cooper	+0.2
41	24-17	IONA	COLUMB	Kill	Charlotte Gravlee	set Claire Mo	·
42	25-17	COLUMB	IONA	Serve err	Columbia		+0.1
Set 2
1	0-1	COLUMB	COLUMB	Ace	Columbia	aced Alex Patsos	+2.6
2	0-2	COLUMB	COLUMB	Kill	Maria Happ	set Clara Yu	+2.4
3	1-2	COLUMB	IONA	Serve err	Columbia		+1.9
4	2-2	IONA	IONA	Blocked	Elena Maynulet	blk Cassandra Rohan, Katherine Ferng	+2.7
5	2-3	IONA	COLUMB×5	Kill	Maria Happ	set Clara Yu	+2.1
6	2-4	COLUMB	COLUMB×5	Attack err	Julia Leonardo		+2.5
7	2-5	COLUMB	COLUMB×5	Blocked	Julia Leonardo	blk Maria Happ, Dahlia Roberts	+2.3
8	2-6	COLUMB	COLUMB×5	Ace	Columbia	aced Alex Patsos	+2.0
9	2-7	COLUMB	COLUMB×5	Ace	Columbia	aced Alex Patsos	+1.7
10	3-7	COLUMB	IONA	Attack err	Dahlia Roberts		+1.2
11	3-8	IONA	COLUMB×5	Bad set	Avery Gaume		+1.4
12	3-9	COLUMB	COLUMB×5	Kill	Charlotte Gravlee	set Clara Yu	+1.4
13	3-10	COLUMB	COLUMB×5	Blocked	Julia Leonardo	blk Dahlia Roberts, Charlotte Gravlee	+1.1
14	3-11	COLUMB	COLUMB×5	Ace	Columbia		+0.8
15	3-12	COLUMB	COLUMB×5	Attack err	Cassandra Rohan		+0.6
16	4-12	COLUMB	IONA	Serve err	Columbia		+0.3
17	4-13	IONA	COLUMB×4	Kill	Elise Hiemstra	set Clara Yu	+0.4
18	4-14	COLUMB	COLUMB×4	Attack err	Anissa Cooper		+0.4
19	4-15	COLUMB	COLUMB×4	Blocked	Alex Patsos	blk Avery Jones	+0.2
20	4-16	COLUMB	COLUMB×4	Kill	Elise Hiemstra	set Claire Mo	+0.1
21	5-16	COLUMB	IONA	Kill	Julia Leonardo	set Grace Daniels	+0.1
22	5-17	IONA	COLUMB	Kill	Charlotte Gravlee	set Claire Mo	+0.1
23	6-17	COLUMB	IONA	Kill	Julia Leonardo	set Grace Daniels	·
24	6-18	IONA	COLUMB	Kill	Elena Maynulet	set Charlotte Gravlee	+0.1
25	7-18	COLUMB	IONA	Serve err	Columbia		·
26	7-19	IONA	COLUMB	Serve err	Iona		+0.1
27	7-20	COLUMB	COLUMB	Ace	Columbia		·
28	8-20	COLUMB	IONA×3	Kill	Buse Tinaz	set Jaylyn Simon	·
29	9-20	IONA	IONA×3	Attack err	Maria Happ		·
30	10-20	IONA	IONA×3	Attack err	Elena Maynulet		·
31	10-21	IONA	COLUMB	Kill	Clara Yu	set Delaney Seaman	+0.1
32	11-21	COLUMB	IONA	Attack err	Maria Happ		·
33	11-22	IONA	COLUMB	Kill	Elise Hiemstra	set Clara Yu	·
34	12-22	COLUMB	IONA	Kill	Anissa Cooper	set Grace Daniels	·
35	12-23	IONA	COLUMB	Kill	Elise Hiemstra	set Clara Yu	·
36	12-24	COLUMB	COLUMB	Kill	Avery Jones	set Elena Maynulet	·
37	13-24	COLUMB	IONA×3	Attack err	Avery Jones		·
38	14-24	IONA	IONA×3	Kill	Alex Patsos	set Grace Daniels	·
39	15-24	IONA	IONA×3	Attack err	Charlotte Gravlee		·
40	15-25	IONA	COLUMB	Attack err	Alex Patsos		·
Set 3
1	0-1	IONA	COLUMB×3	Attack err	Julia Leonardo		+2.1
2	0-2	COLUMB	COLUMB×3	Kill	Maria Happ	set Clara Yu	+2.6
3	0-3	COLUMB	COLUMB×3	Attack err	Buse Tinaz		+2.3
4	1-3	COLUMB	IONA	Kill	Julia Leonardo	set Jaylyn Simon	+1.8
5	1-4	IONA	COLUMB	Kill	Elena Maynulet	set Clara Yu	+1.9
6	2-4	COLUMB	IONA	Kill	Katherine Ferng	set Charlotte Gravlee	+1.8
7	2-5	IONA	COLUMB×8	Kill	Dahlia Roberts	set Clara Yu	+1.9
8	2-6	COLUMB	COLUMB×8	Kill	Elise Hiemstra	set Delaney Seaman	+2.2
9	2-7	COLUMB	COLUMB×8	Kill	Elise Hiemstra	set Claire Mo	+1.8
10	2-8	COLUMB	COLUMB×8	Blocked	Julia Leonardo	blk Avery Jones, Charlotte Gravlee	+1.5
11	2-9	COLUMB	COLUMB×8	Attack err	Cassandra Rohan		+1.2
12	2-10	COLUMB	COLUMB×8	Kill	Charlotte Gravlee		+0.9
13	2-11	COLUMB	COLUMB×8	Kill	Elise Hiemstra	set Claire Mo	+0.7
14	2-12	COLUMB	COLUMB×8	Kill	Avery Jones	set Claire Mo	+0.4
15	3-12	COLUMB	IONA	Kill	Ezzie Thompson	set Grace Daniels	+0.2
16	3-13	IONA	COLUMB	Kill	Elise Hiemstra	set Claire Mo	+0.3
17	4-13	COLUMB	IONA×4	Kill	Reese Henderson	set Julia Leonardo	+0.2
18	5-13	IONA	IONA×4	Blocked	Elena Maynulet	blk Buse Tinaz, Reese Henderson	+0.4
19	6-13	IONA	IONA×4	Kill	Mija Jegers	set Grace Daniels	+0.6
20	7-13	IONA	IONA×4	Ace	Iona	aced Delaney Seaman	+0.9
21	7-14	IONA	COLUMB	Kill	Elena Maynulet	set Claire Mo	+0.9
22	8-14	COLUMB	IONA×3	Kill	Mija Jegers	set Grace Daniels	+0.7
23	9-14	IONA	IONA×3	Blocked	Elena Maynulet	blk Katherine Ferng, Buse Tinaz	+1.2
24	10-14	IONA	IONA×3	Kill	Mija Jegers	set Jaylyn Simon	+1.7
25	10-15	IONA	COLUMB	Kill	Avery Jones	set Claire Mo	+1.6
26	10-16	COLUMB	COLUMB	Kill	Elena Maynulet	set Clara Yu	+1.5
27	11-16	COLUMB	IONA	Kill	Katherine Ferng	set Avery Gaume	+0.9
28	11-17	IONA	COLUMB	Serve err	Iona		+1.2
29	12-17	COLUMB	IONA	Kill	Katherine Ferng	set Jaylyn Simon	+0.9
30	13-17	IONA	IONA	Attack err	Maria Happ		+1.6
31	13-18	IONA	COLUMB	Serve err	Iona		+1.6
32	14-18	COLUMB	IONA	Kill	Katherine Ferng	set Jaylyn Simon	+1.2
33	14-19	IONA	COLUMB×3	Kill	Dahlia Roberts	set Charlotte Gravlee	+1.6
34	14-20	COLUMB	COLUMB×3	Blocked	Julia Leonardo	blk Charlotte Gravlee, Avery Jones	+1.3
35	14-21	COLUMB	COLUMB×3	Kill	Elise Hiemstra	set Delaney Seaman	+0.7
36	15-21	COLUMB	IONA×5	Kill	Ezzie Thompson	set Jaylyn Simon	+0.3
37	16-21	IONA	IONA×5	Kill	Mija Jegers	set Jaylyn Simon	+0.7
38	17-21	IONA	IONA×5	Attack err	Charlotte Gravlee		+1.2
39	18-21	IONA	IONA×5	Attack err	Elise Hiemstra		+2.0
40	19-21	IONA	IONA×5	Kill	Jaylyn Simon	set Joy Houdre	+3.2
41	19-22	IONA	COLUMB×4	Serve err	Iona		+3.4
42	19-23	COLUMB	COLUMB×4	Kill	Charlotte Gravlee	set Claire Mo	+2.8
43	19-24	COLUMB	COLUMB×4	Ace	Columbia	aced Joy Houdre	+1.3
44	19-25	COLUMB	COLUMB×4	Ace	Columbia	aced Joy Houdre	+0.3
Set 4
1	0-1	COLUMB	COLUMB	Bad set	Jaylyn Simon		+2.2
2	1-1	COLUMB	IONA	Serve err	Columbia		+1.8
3	1-2	IONA	COLUMB	Kill	Maria Happ	set Clara Yu	+1.8
4	2-2	COLUMB	IONA	Kill	Ezzie Thompson	set Jaylyn Simon	+1.9
5	2-3	IONA	COLUMB	Kill	Elena Maynulet	set Clara Yu	+1.8
6	3-3	COLUMB	IONA	Kill	Julia Leonardo	set Jaylyn Simon	+1.9
7	3-4	IONA	COLUMB	Kill	Elise Hiemstra	set Clara Yu	+1.9
8	3-5	COLUMB	COLUMB	Attack err	Mija Jegers		+2.3
9	4-5	COLUMB	IONA	Kill	Mija Jegers	set Jaylyn Simon	+1.8
10	4-6	IONA	COLUMB×5	Kill	Elise Hiemstra	set Claire Mo	+1.8
11	4-7	COLUMB	COLUMB×5	Attack err	Mija Jegers		+2.1
12	4-8	COLUMB	COLUMB×5	Attack err	Katherine Ferng		+1.9
13	4-9	COLUMB	COLUMB×5	Kill	Elena Maynulet	set Claire Mo	+1.6
14	4-10	COLUMB	COLUMB×5	Ace	Columbia	aced Mija Jegers	+1.3
15	5-10	COLUMB	IONA×5	Blocked	Elena Maynulet	blk Katherine Ferng, Buse Tinaz	+0.8
16	6-10	IONA	IONA×5	Kill	Mija Jegers	set Jaylyn Simon	+1.4
17	7-10	IONA	IONA×5	Attack err	Avery Jones		+1.8
18	8-10	IONA	IONA×5	Attack err	Elena Maynulet		+2.2
19	9-10	IONA	IONA×5	Kill	Mija Jegers	set Jaylyn Simon	+2.6
20	9-11	IONA	COLUMB	Kill	Charlotte Gravlee	set Claire Mo	+2.1
21	10-11	COLUMB	IONA	Kill	Kari Smith	set Jaylyn Simon	+2.1
22	10-12	IONA	COLUMB	Serve err	Iona		+2.2
23	11-12	COLUMB	IONA	Kill	Julia Leonardo	set Jaylyn Simon	+2.2
24	11-13	IONA	COLUMB	Kill	Clara Yu	set Elena Maynulet	+2.3
25	12-13	COLUMB	IONA	Attack err	Elise Hiemstra		+2.3
26	12-14	IONA	COLUMB	Kill	Elise Hiemstra	set Clara Yu	+2.4
27	12-15	COLUMB	COLUMB	Blocked	Julia Leonardo	blk Charlotte Gravlee, Dahlia Roberts	+2.7
28	13-15	COLUMB	IONA	Kill	Ezzie Thompson	set Jaylyn Simon	+1.9
29	13-16	IONA	COLUMB	Kill	Elise Hiemstra	set Clara Yu	+2.2
30	14-16	COLUMB	IONA	Kill	Mija Jegers	set Avery Gaume	+2.0
31	15-16	IONA	IONA	Kill	Katherine Ferng	set Jaylyn Simon	+3.2
32	15-17	IONA	COLUMB	Kill	Claire Mo	set Elise Hiemstra	+2.7
33	15-18	COLUMB	COLUMB	Kill	Charlotte Gravlee		+3.0
34	16-18	COLUMB	IONA	Kill	Mija Jegers	set Jaylyn Simon	+2.1
35	16-19	IONA	COLUMB	Attack err	Mija Jegers		+2.5
36	17-19	COLUMB	IONA	Kill	Mija Jegers	set Jaylyn Simon	+2.1
37	17-20	IONA	COLUMB	Kill	Avery Jones	set Claire Mo	+2.6
38	17-21	COLUMB	COLUMB	Kill	Elena Maynulet	set Maria Happ	+2.4
39	18-21	COLUMB	IONA	Kill	Buse Tinaz	set Jaylyn Simon	+1.3
40	18-22	IONA	COLUMB×4	Kill	Elena Maynulet	set Clara Yu	+1.9
41	18-23	COLUMB	COLUMB×4	Kill	Elise Hiemstra	set Clara Yu	+1.3
42	18-24	COLUMB	COLUMB×4	Kill	Elise Hiemstra	set Clara Yu	+0.5
43	18-25	COLUMB	COLUMB×4	Kill	Elise Hiemstra	set Clara Yu	+0.1

Score shown after each rally, Iona 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).

Columbia def. Iona 3–1