Southern Ill. def. Merrimack 3–1
Southern Ill. beat visiting Merrimack 3-1 (23-25, 26-24, 25-17, 25-23) on Fri, Sep 4, 2026. Southern Ill.'s Ella Swansiger led with 13 kills, and Ella McFarland added 13 digs.
Data through · final Sep 4
| Set | 1 | 2 | 3 | 4 | Sets |
|---|---|---|---|---|---|
| MERMCK | 25 | 24 | 17 | 23 | 1 |
| SIU | 23 | 26 | 25 | 25 | 3 |
Win probability
Biggest swing: 8.7% to Southern Ill. — set 2, MERMCK 23-24 SIU. Southern Ill. ace on Sienna Franks. SIU win probability 74% → 83%.
Pre-match
Season fit · includes this match
Merrimack wins
Southern Ill. wins
- MERMCK break %
- 39.3% vs this opp
- SIU break %
- 51.7% 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
- 01Southern Ill.Ace+8.7%
Southern Ill. ace on Sienna Franks
Set 2 · MERMCK 23-24 SIU · SIU 74% → 83%
- 02Mckenna ShotwellKill+8.0%
Kill by Mckenna Shotwell (set by Sophia DeBonis)
Set 2 · MERMCK 23-21 SIU · MERMCK 30% → 38%
- 03Natalie Vance&Beatriz PiaiaBlock+7.8%
Mckenna Shotwell stuffed by Natalie Vance & Beatriz Piaia
Set 2 · MERMCK 23-23 SIU · SIU 66% → 74%
- 04Kaitlyn Oxceus&Mckenna ShotwellBlock+7.0%
Natalie Vance stuffed by Kaitlyn Oxceus & Mckenna Shotwell
Set 2 · MERMCK 24-24 SIU · MERMCK 17% → 24%
- 05Beatriz PiaiaKill+7.0%
Kill by Beatriz Piaia (set by Ella McFarland)
Set 2 · MERMCK 24-25 SIU · SIU 76% → 83%
- 06Jocelyn HammerstrandKill+6.9%
Kill by Jocelyn Hammerstrand (set by Ella Maldonado)
Set 2 · MERMCK 22-21 SIU · MERMCK 23% → 30%
- 07Southern Ill.Ace+6.6%
Southern Ill. ace on Natalia Zelubowski
Set 2 · MERMCK 24-26 SIU · SIU 83% → 89%
- 08Natalia ZelubowskiKill+4.7%
Kill by Natalia Zelubowski (set by Sophia DeBonis)
Set 1 · MERMCK 25-23 SIU · MERMCK 13% → 18%
Box score
Official NCAA box
| Player | S | K | E | TA | Hit% | AST | SA | SE | DIG | RE | BS | BA | BLK | PTS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 10 | 7 | 43 | .070 | 0 | 3 | 3 | 9 | 2 | 0 | 3 | 1.5 | 14.5 | |
| 4 | 10 | 7 | 28 | .107 | 0 | 0 | 0 | 3 | 0 | 0 | 2 | 1 | 11 | |
| 4 | 5 | 1 | 10 | .400 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 3.5 | 8.5 | |
| 4 | 2 | 2 | 6 | .000 | 1 | 1 | 2 | 1 | 0 | 0 | 2 | 1 | 4 | |
| 4 | 1 | 0 | 4 | .250 | 23 | 0 | 0 | 12 | 0 | 0 | 0 | 0 | 1 | |
| 3 | 6 | 6 | 14 | .000 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 6 | |
| 4 | 0 | 0 | 0 | – | 2 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 2 | |
| 4 | 0 | 0 | 0 | – | 4 | 0 | 1 | 16 | 1 | 0 | 0 | 0 | 0 | |
| 4 | 0 | 0 | 0 | – | 2 | 0 | 0 | 3 | 1 | 0 | 0 | 0 | 0 | |
| 3 | 2 | 2 | 6 | .000 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0.5 | 2.5 | |
| 3 | 0 | 0 | 1 | .000 | 8 | 0 | 1 | 3 | 0 | 0 | 0 | 0 | 0 | |
| 2 | 8 | 1 | 23 | .304 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 8 | |
| 2 | 0 | 1 | 5 | -.200 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.5 | 0.5 | |
| 2 | 0 | 0 | 0 | – | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 1 | 0 | 0 | 0 | – | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Team totals | 44 | 27 | 140 | .121 | 43 | 6 | 9 | 53 | 7 | 1 | 14 | 8 | 89 |
| Player | S | K | E | TA | Hit% | AST | SA | SE | DIG | RE | BS | BA | BLK | PTS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 11 | 1 | 21 | .476 | 0 | 1 | 1 | 4 | 0 | 1 | 5 | 3.5 | 15.5 | |
| 4 | 10 | 5 | 29 | .172 | 0 | 0 | 0 | 4 | 0 | 0 | 5 | 2.5 | 12.5 | |
| 4 | 8 | 1 | 15 | .467 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 2 | 10 | |
| 4 | 5 | 5 | 20 | .000 | 0 | 1 | 0 | 12 | 4 | 0 | 1 | 0.5 | 6.5 | |
| 4 | 6 | 8 | 19 | -.105 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0.5 | 6.5 | |
| 4 | 0 | 0 | 2 | .000 | 23 | 1 | 2 | 13 | 1 | 0 | 0 | 0 | 1 | |
| 4 | 13 | 3 | 26 | .385 | 1 | 0 | 0 | 2 | 0 | 0 | 2 | 1 | 14 | |
| 4 | 0 | 0 | 1 | .000 | 4 | 2 | 1 | 12 | 0 | 0 | 0 | 0 | 2 | |
| 4 | 0 | 0 | 1 | .000 | 20 | 1 | 0 | 4 | 0 | 0 | 0 | 0 | 1 | |
| 4 | 0 | 0 | 0 | – | 0 | 1 | 3 | 5 | 0 | 0 | 0 | 0 | 1 | |
| 2 | 2 | 1 | 10 | .100 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 0.5 | 2.5 | |
| 1 | 0 | 0 | 0 | – | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Team totals | 55 | 24 | 144 | .215 | 49 | 7 | 7 | 59 | 6 | 1 | 19 | 10.5 | 99 |
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
Set 1
25-23
Set 2
24-26
Set 3
17-25
Set 4
23-25
Bars above the line = Southern Ill. leads, below = Merrimack leads. Bright bars are points inside a run of 3+.
Rotations
Sideout and break % by rotation slot
Merrimack
| Slot | Sideout % | Break % |
|---|---|---|
| 1 | 56%10/18 | 52%11/21 |
| 2 | 82%9/11 | 50%10/20 |
| 3 | 43%9/21 | 31%4/13 |
| 4 | 40%8/20 | 27%3/11 |
| 5 | 57%8/14 | 43%6/14 |
| 6 | 57%8/14 | 27%3/11 |
| All | 53%52/98 | 41%37/90 |
Southern Ill.
| Slot | Sideout % | Break % |
|---|---|---|
| 1 | 48%11/23 | 47%8/17 |
| 2 | 53%10/19 | 33%5/15 |
| 3 | 73%8/11 | 40%6/15 |
| 4 | 73%8/11 | 64%14/22 |
| 5 | 62%8/13 | 50%8/16 |
| 6 | 62%8/13 | 38%5/13 |
| All | 59%53/90 | 47%46/98 |
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
188 rallies
| # | MERMCK-SIU | Srv | Point | End | Player | Setter / blockers / passer | WP Δ |
|---|---|---|---|---|---|---|---|
| Set 1 | |||||||
| 1 | 0-1 | SIU | SIU | Kill | McKenzie Moeller | set Ella McFarland | +0.6 |
| 2 | 0-2 | SIU | SIU | Blocked | Jocelyn Hammerstrand | blk Chloe Anderson, Natalie Vance | +0.5 |
| 3 | 1-2 | SIU | MERMCK | Kill | Mckenna Shotwell | set Sophia DeBonis | +0.4 |
| 4 | 1-3 | MERMCK | SIU | Kill | Chloe Anderson | set Ella McFarland | +0.4 |
| 5 | 2-3 | SIU | MERMCK | Kill | Jocelyn Hammerstrand | set Sophia DeBonis | +0.5 |
| 6 | 2-4 | MERMCK | SIU | Kill | McKenzie Moeller | set Lillian Dempkey | +0.4 |
| 7 | 3-4 | SIU | MERMCK | Serve err | Southern Ill. | +0.5 | |
| 8 | 3-5 | MERMCK | SIU | Attack err | Natalia Zelubowski | +0.4 | |
| 9 | 3-6 | SIU | SIU | Blocked | Natalia Zelubowski | blk Carlota Mora, Beatriz Piaia | +0.5 |
| 10 | 4-6 | SIU | MERMCK | Bad set | Lillian Dempkey | +0.4 | |
| 11 | 4-7 | MERMCK | SIU | Kill | Beatriz Piaia | set Lillian Dempkey | +0.4 |
| 12 | 4-8 | SIU | SIU | Kill | Carlota Mora | set Jillian Shaneyfelt | +0.4 |
| 13 | 5-8 | SIU | MERMCK | Kill | Naomi Vajda | set Devon Lowe | +0.3 |
| 14 | 5-9 | MERMCK | SIU | Kill | Carlota Mora | set Ella McFarland | +0.3 |
| 15 | 6-9 | SIU | MERMCK×3 | Attack err | McKenzie Moeller | +0.3 | |
| 16 | 7-9 | MERMCK | MERMCK×3 | Blocked | Beatriz Piaia | blk Kaitlyn Oxceus | +0.5 |
| 17 | 8-9 | MERMCK | MERMCK×3 | Blocked | McKenzie Moeller | blk Jocelyn Hammerstrand, Kaitlyn Oxceus | +0.7 |
| 18 | 8-10 | MERMCK | SIU | Kill | Beatriz Piaia | set Ella McFarland | +0.6 |
| 19 | 8-11 | SIU | SIU | Blocked | Kaitlyn Oxceus | blk Chloe Anderson | +0.6 |
| 20 | 9-11 | SIU | MERMCK×3 | Serve err | Southern Ill. | +0.5 | |
| 21 | 10-11 | MERMCK | MERMCK×3 | Attack err | Natalie Vance | +0.7 | |
| 22 | 11-11 | MERMCK | MERMCK×3 | Ace | Merrimack | aced Carlota Mora | +0.9 |
| 23 | 11-12 | MERMCK | SIU | Kill | Natalie Vance | set Ella McFarland | +0.7 |
| 24 | 12-12 | SIU | MERMCK | Kill | Jocelyn Hammerstrand | set Sophia DeBonis | +0.8 |
| 25 | 13-12 | MERMCK | MERMCK | Attack err | Ella Swansiger | +1.2 | |
| 26 | 13-13 | MERMCK | SIU | Serve err | Merrimack | +0.9 | |
| 27 | 14-13 | SIU | MERMCK | Attack err | Carlota Mora | +1.1 | |
| 28 | 14-14 | MERMCK | SIU×3 | Kill | Chloe Anderson | set Lillian Dempkey | +1.0 |
| 29 | 14-15 | SIU | SIU×3 | Attack err | Mckenna Shotwell | +1.1 | |
| 30 | 14-16 | SIU | SIU×3 | Blocked | Avry Bryant | blk Beatriz Piaia, Ella Swansiger | +0.9 |
| 31 | 15-16 | SIU | MERMCK×3 | Kill | Natalia Zelubowski | set Devon Lowe | +0.8 |
| 32 | 16-16 | MERMCK | MERMCK×3 | Kill | Mckenna Shotwell | set Devon Lowe | +1.3 |
| 33 | 17-16 | MERMCK | MERMCK×3 | Bad set | Lillian Dempkey | +1.6 | |
| 34 | 17-17 | MERMCK | SIU | Kill | Beatriz Piaia | set Lillian Dempkey | +1.2 |
| 35 | 17-18 | SIU | SIU | Kill | Natalie Vance | set Ella McFarland | +1.3 |
| 36 | 18-18 | SIU | MERMCK | Bad set | Ella McFarland | +1.2 | |
| 37 | 19-18 | MERMCK | MERMCK | Blocked | Carlota Mora | blk Avry Bryant, Kaitlyn Oxceus | +1.8 |
| 38 | 19-19 | MERMCK | SIU | Serve err | Merrimack | +1.4 | |
| 39 | 20-19 | SIU | MERMCK | Kill | Mckenna Shotwell | set Devon Lowe | +1.7 |
| 40 | 21-19 | MERMCK | MERMCK | Attack err | McKenzie Moeller | +2.4 | |
| 41 | 21-20 | MERMCK | SIU | Kill | Natalie Vance | set Ella McFarland | +1.6 |
| 42 | 21-21 | SIU | SIU | Attack err | Mckenna Shotwell | +2.1 | |
| 43 | 22-21 | SIU | MERMCK | Kill | Sophia DeBonis | set Sienna Franks | +2.3 |
| 44 | 22-22 | MERMCK | SIU | Kill | Natalie Vance | set Ella McFarland | +2.0 |
| 45 | 23-22 | SIU | MERMCK | Kill | Natalia Zelubowski | set Sophia DeBonis | +2.7 |
| 46 | 24-22 | MERMCK | MERMCK | Kill | Natalia Zelubowski | set Gabrielle Moore | +3.8 |
| 47 | 24-23 | MERMCK | SIU | Attack err | Jocelyn Hammerstrand | +1.9 | |
| 48 | 25-23 | SIU | MERMCK | Kill | Natalia Zelubowski | set Sophia DeBonis | +4.7 |
| Set 2 | |||||||
| 1 | 1-0 | MERMCK | MERMCK | Blocked | Carlota Mora | blk Jocelyn Hammerstrand, Kaitlyn Oxceus | +1.8 |
| 2 | 1-1 | MERMCK | SIU | Serve err | Merrimack | +1.4 | |
| 3 | 2-1 | SIU | MERMCK | Attack err | McKenzie Moeller | +1.6 | |
| 4 | 3-1 | MERMCK | MERMCK | Ace | Merrimack | aced Carlota Mora | +2.2 |
| 5 | 3-2 | MERMCK | SIU | Serve err | Merrimack | +1.6 | |
| 6 | 4-2 | SIU | MERMCK | Kill | Jocelyn Hammerstrand | set Sophia DeBonis | +1.9 |
| 7 | 4-3 | MERMCK | SIU×4 | Kill | Chloe Anderson | set Ella McFarland | +1.7 |
| 8 | 4-4 | SIU | SIU×4 | Ace | Southern Ill. | +1.9 | |
| 9 | 4-5 | SIU | SIU×4 | Attack err | Naomi Vajda | +1.7 | |
| 10 | 4-6 | SIU | SIU×4 | Kill | McKenzie Moeller | set Jillian Shaneyfelt | +1.5 |
| 11 | 5-6 | SIU | MERMCK | Attack err | McKenzie Moeller | +1.3 | |
| 12 | 6-6 | MERMCK | MERMCK | Kill | Mckenna Shotwell | set Naomi Vajda | +1.9 |
| 13 | 6-7 | MERMCK | SIU | Kill | Chloe Anderson | set Lillian Dempkey | +1.5 |
| 14 | 6-8 | SIU | SIU | Ace | Southern Ill. | +1.6 | |
| 15 | 7-8 | SIU | MERMCK×5 | Kill | Mckenna Shotwell | set Devon Lowe | +1.4 |
| 16 | 8-8 | MERMCK | MERMCK×5 | Attack err | Carlota Mora | +2.1 | |
| 17 | 9-8 | MERMCK | MERMCK×5 | Bad set | Lillian Dempkey | +2.5 | |
| 18 | 10-8 | MERMCK | MERMCK×5 | Ace | Merrimack | +2.9 | |
| 19 | 11-8 | MERMCK | MERMCK×5 | Blocked | Ella Swansiger | blk Mckenna Shotwell, Kaitlyn Oxceus | +3.3 |
| 20 | 11-9 | MERMCK | SIU | Kill | Ella Swansiger | set Lillian Dempkey | +2.2 |
| 21 | 11-10 | SIU | SIU | Kill | Ella Swansiger | set Lillian Dempkey | +2.7 |
| 22 | 12-10 | SIU | MERMCK | Kill | Mckenna Shotwell | set Ella Maldonado | +2.7 |
| 23 | 12-11 | MERMCK | SIU | Kill | Ella Swansiger | set Lillian Dempkey | +2.3 |
| 24 | 12-12 | SIU | SIU | Kill | Natalie Vance | set Ella McFarland | +2.7 |
| 25 | 13-12 | SIU | MERMCK | Bad set | Ella McFarland | +2.6 | |
| 26 | 13-13 | MERMCK | SIU | Serve err | Merrimack | +2.3 | |
| 27 | 14-13 | SIU | MERMCK×3 | Kill | Kaitlyn Oxceus | set Sophia DeBonis | +2.8 |
| 28 | 15-13 | MERMCK | MERMCK×3 | Bad set | Ella McFarland | +3.8 | |
| 29 | 16-13 | MERMCK | MERMCK×3 | Ace | Merrimack | aced Carlota Mora | +4.2 |
| 30 | 16-14 | MERMCK | SIU | Kill | Natalie Vance | set Ella McFarland | +2.8 |
| 31 | 16-15 | SIU | SIU | Ace | Southern Ill. | aced Mckenna Shotwell | +3.5 |
| 32 | 17-15 | SIU | MERMCK | Attack err | McKenzie Moeller | +3.7 | |
| 33 | 18-15 | MERMCK | MERMCK | Bad set | Ella McFarland | +4.7 | |
| 34 | 18-16 | MERMCK | SIU | Kill | McKenzie Moeller | set Ella McFarland | +3.0 |
| 35 | 18-17 | SIU | SIU | Attack err | Natalia Zelubowski | +4.0 | |
| 36 | 19-17 | SIU | MERMCK | Kill | Maiella Blandin | set Devon Lowe | +4.3 |
| 37 | 19-18 | MERMCK | SIU×3 | Kill | Chloe Anderson | set Lillian Dempkey | +3.4 |
| 38 | 19-19 | SIU | SIU×3 | Attack err | Mckenna Shotwell | +4.4 | |
| 39 | 19-20 | SIU | SIU×3 | Attack err | Mckenna Shotwell | +4.2 | |
| 40 | 20-20 | SIU | MERMCK | Serve err | Southern Ill. | +3.8 | |
| 41 | 20-21 | MERMCK | SIU | Kill | Ella Swansiger | set Lillian Dempkey | +3.8 |
| 42 | 21-21 | SIU | MERMCK×3 | Kill | Maiella Blandin | set Devon Lowe | +4.3 |
| 43 | 22-21 | MERMCK | MERMCK×3 | Kill | Jocelyn Hammerstrand | set Ella Maldonado | +6.9 |
| 44 | 23-21 | MERMCK | MERMCK×3 | Kill | Mckenna Shotwell | set Sophia DeBonis | +8.0 |
| 45 | 23-22 | MERMCK | SIU×3 | Kill | Ella Swansiger | set Lillian Dempkey | +4.7 |
| 46 | 23-23 | SIU | SIU×3 | Blocked | Mckenna Shotwell | blk Natalie Vance, Beatriz Piaia | +7.8 |
| 47 | 23-24 | SIU | SIU×3 | Ace | Southern Ill. | aced Sienna Franks | +8.7 |
| 48 | 24-24 | SIU | MERMCK | Blocked | Natalie Vance | blk Kaitlyn Oxceus, Mckenna Shotwell | +7.0 |
| 49 | 24-25 | MERMCK | SIU | Kill | Beatriz Piaia | set Ella McFarland | +7.0 |
| 50 | 24-26 | SIU | SIU | Ace | Southern Ill. | aced Natalia Zelubowski | +6.6 |
| Set 3 | |||||||
| 1 | 1-0 | SIU | MERMCK×3 | Kill | Jocelyn Hammerstrand | set Sophia DeBonis | +1.3 |
| 2 | 2-0 | MERMCK | MERMCK×3 | Attack err | Natalie Vance | +1.8 | |
| 3 | 3-0 | MERMCK | MERMCK×3 | Kill | Kaitlyn Oxceus | +2.1 | |
| 4 | 3-1 | MERMCK | SIU | Kill | Carlota Mora | set Ella McFarland | +1.5 |
| 5 | 4-1 | SIU | MERMCK | Kill | Mckenna Shotwell | set Ella Maldonado | +1.8 |
| 6 | 5-1 | MERMCK | MERMCK | Ace | Merrimack | aced Carlota Mora | +2.3 |
| 7 | 5-2 | MERMCK | SIU | Kill | McKenzie Moeller | set Jillian Shaneyfelt | +1.6 |
| 8 | 6-2 | SIU | MERMCK×3 | Kill | Natalia Zelubowski | set Sophia DeBonis | +2.0 |
| 9 | 7-2 | MERMCK | MERMCK×3 | Kill | Natalia Zelubowski | set Gabrielle Moore | +2.5 |
| 10 | 8-2 | MERMCK | MERMCK×3 | Attack err | McKenzie Moeller | +2.6 | |
| 11 | 8-3 | MERMCK | SIU×4 | Kill | Chloe Anderson | set Ella McFarland | +1.6 |
| 12 | 8-4 | SIU | SIU×4 | Bad set | Sophia DeBonis | +2.1 | |
| 13 | 8-5 | SIU | SIU×4 | Attack err | Mckenna Shotwell | +2.1 | |
| 14 | 8-6 | SIU | SIU×4 | Blocked | Jocelyn Hammerstrand | blk McKenzie Moeller, Chloe Anderson | +2.1 |
| 15 | 9-6 | SIU | MERMCK | Kill | Jocelyn Hammerstrand | set Sophia DeBonis | +2.2 |
| 16 | 9-7 | MERMCK | SIU | Blocked | Natalia Zelubowski | blk Ella Swansiger, Chloe Anderson | +1.8 |
| 17 | 9-8 | SIU | SIU | Kill | Carlota Mora | +2.1 | |
| 18 | 10-8 | SIU | MERMCK | Serve err | Southern Ill. | +2.1 | |
| 19 | 10-9 | MERMCK | SIU | Kill | Ella Swansiger | set Lillian Dempkey | +1.8 |
| 20 | 11-9 | SIU | MERMCK | Serve err | Southern Ill. | +2.2 | |
| 21 | 11-10 | MERMCK | SIU | Serve err | Merrimack | +1.9 | |
| 22 | 12-10 | SIU | MERMCK | Kill | Kaitlyn Oxceus | set Elizabeth Kenney | +2.4 |
| 23 | 12-11 | MERMCK | SIU | Kill | Beatriz Piaia | set Ella McFarland | +2.0 |
| 24 | 12-12 | SIU | SIU | Kill | Alexandria Arrington | set Beatriz Piaia | +2.3 |
| 25 | 13-12 | SIU | MERMCK | Kill | Mckenna Shotwell | set Ella Maldonado | +2.3 |
| 26 | 13-13 | MERMCK | SIU×6 | Serve err | Merrimack | +2.0 | |
| 27 | 13-14 | SIU | SIU×6 | Blocked | Natalia Zelubowski | blk Chloe Anderson, Natalie Vance | +2.2 |
| 28 | 13-15 | SIU | SIU×6 | Attack err | Jocelyn Hammerstrand | +2.0 | |
| 29 | 13-16 | SIU | SIU×6 | Ace | Southern Ill. | aced Mckenna Shotwell | +1.6 |
| 30 | 13-17 | SIU | SIU×6 | Attack err | Jocelyn Hammerstrand | +1.2 | |
| 31 | 13-18 | SIU | SIU×6 | Blocked | Natalia Zelubowski | blk Chloe Anderson, Natalie Vance | +0.9 |
| 32 | 14-18 | SIU | MERMCK | Kill | Tamilore Afolalu | set Sophia DeBonis | +0.6 |
| 33 | 14-19 | MERMCK | SIU | Kill | Chloe Anderson | set Ella McFarland | +0.7 |
| 34 | 14-20 | SIU | SIU | Attack err | Jocelyn Hammerstrand | +0.5 | |
| 35 | 15-20 | SIU | MERMCK | Kill | Tamilore Afolalu | set Sophia DeBonis | +0.3 |
| 36 | 15-21 | MERMCK | SIU | Kill | Ella Swansiger | set Lillian Dempkey | +0.4 |
| 37 | 16-21 | SIU | MERMCK | Kill | Tamilore Afolalu | set Elizabeth Kenney | +0.3 |
| 38 | 16-22 | MERMCK | SIU×3 | Kill | Chloe Anderson | +0.4 | |
| 39 | 16-23 | SIU | SIU×3 | Ace | Southern Ill. | aced Ella Maldonado | +0.2 |
| 40 | 16-24 | SIU | SIU×3 | Attack err | Naomi Vajda | +0.1 | |
| 41 | 17-24 | SIU | MERMCK | Kill | Mckenna Shotwell | set Elizabeth Kenney | · |
| 42 | 17-25 | MERMCK | SIU | Kill | Carlota Mora | set Ella Swansiger | · |
| Set 4 | |||||||
| 1 | 1-0 | MERMCK | MERMCK×3 | Kill | Kaitlyn Oxceus | set Sophia DeBonis | +1.1 |
| 2 | 2-0 | MERMCK | MERMCK×3 | Kill | Tamilore Afolalu | set Sophia DeBonis | +1.3 |
| 3 | 3-0 | MERMCK | MERMCK×3 | Attack err | Natalie Vance | +1.5 | |
| 4 | 3-1 | MERMCK | SIU | Kill | Alexandria Arrington | set Ella McFarland | +1.0 |
| 5 | 4-1 | SIU | MERMCK | Kill | Jocelyn Hammerstrand | set Sophia DeBonis | +1.3 |
| 6 | 4-2 | MERMCK | SIU | Kill | Chloe Anderson | set Ella McFarland | +1.1 |
| 7 | 5-2 | SIU | MERMCK | Kill | Tamilore Afolalu | set Sophia DeBonis | +1.3 |
| 8 | 5-3 | MERMCK | SIU | Serve err | Merrimack | +1.1 | |
| 9 | 6-3 | SIU | MERMCK | Bad set | Lillian Dempkey | +1.4 | |
| 10 | 6-4 | MERMCK | SIU | Kill | Ella Swansiger | set Lillian Dempkey | +1.2 |
| 11 | 6-5 | SIU | SIU | Attack err | Maiella Blandin | +1.4 | |
| 12 | 7-5 | SIU | MERMCK | Blocked | Carlota Mora | blk Naomi Vajda, Maiella Blandin | +1.4 |
| 13 | 7-6 | MERMCK | SIU×3 | Kill | Beatriz Piaia | set Lillian Dempkey | +1.2 |
| 14 | 7-7 | SIU | SIU×3 | Kill | Natalie Vance | set Jillian Shaneyfelt | +1.3 |
| 15 | 7-8 | SIU | SIU×3 | Attack err | Maiella Blandin | +1.2 | |
| 16 | 8-8 | SIU | MERMCK | Serve err | Southern Ill. | +1.1 | |
| 17 | 8-9 | MERMCK | SIU | Kill | Natalie Vance | set Ella McFarland | +1.0 |
| 18 | 8-10 | SIU | SIU | Blocked | Mckenna Shotwell | blk Natalie Vance, Beatriz Piaia, Alexandria Arrington | +1.1 |
| 19 | 9-10 | SIU | MERMCK×5 | Kill | Jocelyn Hammerstrand | set Sienna Franks | +1.0 |
| 20 | 10-10 | MERMCK | MERMCK×5 | Ace | Merrimack | aced Ella McFarland | +1.4 |
| 21 | 11-10 | MERMCK | MERMCK×5 | Kill | Tamilore Afolalu | set Sophia DeBonis | +1.7 |
| 22 | 12-10 | MERMCK | MERMCK×5 | Attack err | Natalie Vance | +2.0 | |
| 23 | 13-10 | MERMCK | MERMCK×5 | Kill | Tamilore Afolalu | set Sophia DeBonis | +2.2 |
| 24 | 13-11 | MERMCK | SIU×4 | Kill | Natalie Vance | set Ella McFarland | +1.5 |
| 25 | 13-12 | SIU | SIU×4 | Attack err | Tamilore Afolalu | +1.8 | |
| 26 | 13-13 | SIU | SIU×4 | Kill | Natalie Vance | set Ella McFarland | +1.8 |
| 27 | 13-14 | SIU | SIU×4 | Attack err | Jocelyn Hammerstrand | +1.6 | |
| 28 | 14-14 | SIU | MERMCK×3 | Kill | Jocelyn Hammerstrand | set Sophia DeBonis | +1.5 |
| 29 | 15-14 | MERMCK | MERMCK×3 | Attack err | Alexandria Arrington | +2.2 | |
| 30 | 16-14 | MERMCK | MERMCK×3 | Attack err | Chloe Anderson | +2.5 | |
| 31 | 16-15 | MERMCK | SIU | Serve err | Merrimack | +1.8 | |
| 32 | 17-15 | SIU | MERMCK | Kill | Jocelyn Hammerstrand | set Sophia DeBonis | +2.3 |
| 33 | 17-16 | MERMCK | SIU×4 | Kill | Chloe Anderson | set Lillian Dempkey | +1.9 |
| 34 | 17-17 | SIU | SIU×4 | Kill | Ella Swansiger | set Lillian Dempkey | +2.3 |
| 35 | 17-18 | SIU | SIU×4 | Kill | Ella Swansiger | set Lillian Dempkey | +2.1 |
| 36 | 17-19 | SIU | SIU×4 | Kill | Ella Swansiger | set Lillian Dempkey | +1.8 |
| 37 | 18-19 | SIU | MERMCK | Kill | Naomi Vajda | set Devon Lowe | +1.5 |
| 38 | 18-20 | MERMCK | SIU | Kill | Chloe Anderson | set Lillian Dempkey | +1.6 |
| 39 | 18-21 | SIU | SIU | Kill | Ella Swansiger | set Lillian Dempkey | +1.5 |
| 40 | 19-21 | SIU | MERMCK | Blocked | Ella Swansiger | blk Naomi Vajda, Mckenna Shotwell | +1.1 |
| 41 | 19-22 | MERMCK | SIU | Kill | Ella Swansiger | set Lillian Dempkey | +1.3 |
| 42 | 20-22 | SIU | MERMCK | Serve err | Southern Ill. | +1.0 | |
| 43 | 20-23 | MERMCK | SIU | Kill | Beatriz Piaia | set Ella McFarland | +1.4 |
| 44 | 21-23 | SIU | MERMCK | Kill | Kaitlyn Oxceus | set Sophia DeBonis | +0.9 |
| 45 | 21-24 | MERMCK | SIU | Kill | Beatriz Piaia | set Ella McFarland | +1.4 |
| 46 | 22-24 | SIU | MERMCK | Kill | Tamilore Afolalu | set Sophia DeBonis | +0.7 |
| 47 | 23-24 | MERMCK | MERMCK | Attack err | McKenzie Moeller | +2.0 | |
| 48 | 23-25 | MERMCK | SIU | Kill | McKenzie Moeller | set Ella McFarland | +3.3 |
Score shown after each rally, Merrimack 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).