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BOSTON MARATHON 2025

Cassidy Guenther

Bib: 11359•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 39%
Gender (Female)
#0 / 12228
Top 23%
Division (F18-39)
#0 / 5469
Top 39%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:29
Rank: #7205
Start → 5K
21:29 | 6:55/mi
10K· 6.21 mi
43:00
Rank: #7306 (-101)
5K → 10K
21:31 | 6:56/mi
15K· 9.32 mi
1:04:58
Rank: #7573 (-267)
10K → 15K
21:58 | 7:04/mi
20K· 12.43 mi
1:27:23
Rank: #7705 (-132)
15K → 20K
22:25 | 7:13/mi
Half· 13.11 mi
1:32:21
Rank: #7795 (-90)
20K → Half
4:58 | 7:17/mi
25K· 15.53 mi
1:50:28
Rank: #8005 (-210)
Half → 25K
18:07 | 7:28/mi
30K· 18.64 mi
2:14:59
Rank: #8358 (-353)
25K → 30K
24:31 | 7:53/mi
20M
2:26:05
Rank: #8559 (-201)
30K → 20M
11:06 | 8:10/mi
21M
2:35:11
Rank: #8899 (-340)
20M → 21M
9:06 | 9:06/mi
35K· 21.75 mi
2:41:11
Rank: #9020 (-121)
21M → 35K
6:00 | 8:01/mi
23M
2:52:37
Rank: #9542 (-522)
35K → 23M
11:26 | 9:08/mi
24M
3:01:44
Rank: #10009 (-467)
23M → 24M
9:07 | 9:07/mi
40K· 24.85 mi
3:10:21
Rank: #10554 (-545)
24M → 40K
8:37 | 10:05/mi
25.2M
3:13:59
Rank: #10716 (-162)
40K → 25.2M
3:38 | 10:32/mi
Finish· 26.22 mi
3:23:09
Rank: #11073 (-357)
25.2M → Finish
9:10 | 9:00/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:21
Pace7:03 /mi
2nd Half
Distance13.11 mi
Time1:50:48
Pace8:27 /mi
📊Positive Split: 20.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:1921:296:5521:29
6:55
-
10K
6.21 mi11:09:5043:006:5521:31
6:56
+0:01
15K
9.32 mi11:31:481:04:586:5821:58
7:04
+0:08
20K
12.43 mi11:54:131:27:237:0222:25
7:13
+0:09
Half
13.11 mi11:59:111:32:217:034:58
7:17
+0:04
25K
15.53 mi12:17:181:50:287:0718:07
7:28
+0:11
30K
18.64 mi12:41:492:14:597:1424:31
7:53
+0:25
20M
20.00 mi12:52:552:26:057:1811:06
8:10
+0:17
21M
21.00 mi13:02:012:35:117:239:06
9:06
+0:56
35K
21.75 mi13:08:012:41:117:256:00
8:01
-1:05
23M
23.00 mi13:19:272:52:377:3011:26
9:08
+1:07
24M
24.00 mi13:28:343:01:447:349:07
9:07
-0:01
40K
24.85 mi13:37:113:10:217:408:37
10:05
+0:58
25.2M
25.20 mi13:40:493:13:597:423:38
10:32
+0:27
Finish
26.22 mi13:49:593:23:097:459:10
9:00
-1:32

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:55 /mi

Average Pace

7:45 /mi

Slowest Pace

10:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:21

45% of race

Time at Steady Pace

59:44

29% of race

Time at Slower Pace

51:04

25% of race

Average Pace: 7:45 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:48:1921:296:5521:29
6:55
#7205
10K
6.21 mi11:09:5043:006:5521:31
6:56
#7306
15K
9.32 mi11:31:481:04:586:5821:58
7:04
#7573
20K
12.43 mi11:54:131:27:237:0222:25
7:13
#7705
Half
13.11 mi11:59:111:32:217:034:58
7:17
#7795
25K
15.53 mi12:17:181:50:287:0718:07
7:28
#8005
30K
18.64 mi12:41:492:14:597:1424:31
7:53
#8358
20M
20.00 mi12:52:552:26:057:1811:06
8:10
#8559
21M
21.00 mi13:02:012:35:117:239:06
9:06
#8899
35K
21.75 mi13:08:012:41:117:256:00
8:01
#9020
23M
23.00 mi13:19:272:52:377:3011:26
9:08
#9542
24M
24.00 mi13:28:343:01:447:349:07
9:07
#10009
40K
24.85 mi13:37:113:10:217:408:37
10:05
#10554
25.2M
25.20 mi13:40:493:13:597:423:38
10:32
#10716
Finish
26.22 mi13:49:593:23:097:459:10
9:00
#11073
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi72057427428143(Top 29%)1095(Top 9%)1095(Top 20%)
10K6.21 mi3.10 mi7306-101774-32774-327451(Top 26%)832(Top 7%)832(Top 15%)
15K9.32 mi3.11 mi7573-267865-91865-918143(Top 29%)1095(Top 9%)1095(Top 20%)
20K12.43 mi3.11 mi7705-132918-53918-538349(Top 29%)1255(Top 10%)1255(Top 23%)
Half13.11 mi0.68 mi7795-90954-36954-369921(Top 35%)1937(Top 16%)1937(Top 35%)
25K15.53 mi2.42 mi8005-2101055-1011055-1019758(Top 34%)2007(Top 16%)2007(Top 37%)
30K18.64 mi3.11 mi8358-3531240-1851240-18510579(Top 37%)2585(Top 21%)2585(Top 47%)
20M20.00 mi1.36 mi8559-2011359-1191359-11911604(Top 41%)3226(Top 26%)3226(Top 59%)
21M21.00 mi1.00 mi8899-3401533-1741533-17414103(Top 50%)4676(Top 38%)4676(Top 86%)
35K21.75 mi0.75 mi9020-1211604-711604-7112403(Top 44%)3838(Top 31%)3838(Top 70%)
23M23.00 mi1.25 mi9542-5221880-2761880-27617002(Top 60%)6445(Top 53%)6445(Top 118%)
24M24.00 mi1.00 mi10009-4672150-2702150-27017966(Top 63%)7013(Top 57%)7013(Top 128%)
40K24.85 mi0.85 mi10554-5452441-2912441-29120712(Top 73%)8508(Top 70%)8508(Top 156%)
25.2M25.20 mi0.35 mi10716-1622545-1042545-10419138(Top 67%)7693(Top 63%)7693(Top 141%)
Finish26.22 mi1.02 mi11073-3572783-2382783-23819021(Top 67%)7600(Top 62%)7600(Top 139%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21stories
+97ft-345ft

Overall

8143

Females

1095

F18-39

1095

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

7451

Females

832

F18-39

832

10K→15K

6.2 - 9.3 mi

Top 29%
×3stories
+67ft-78ft

Overall

8143

Females

1095

F18-39

1095

15K→20K

9.3 - 12.4 mi

Top 29%
×5stories
+106ft-86ft

Overall

8349

Females

1255

F18-39

1255

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

9921

Females

1937

F18-39

1937

Half→25K

13.1 - 15.5 mi

Top 34%
×4stories
+66ft-88ft

Overall

9758

Females

2007

F18-39

2007

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

10579

Females

2585

F18-39

2585

30K→20M

18.6 - 20.0 mi

Top 41%
×5stories
+64ft-50ft

Overall

11604

Females

3226

F18-39

3226

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

14103

Females

4676

F18-39

4676

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

12403

Females

3838

F18-39

3838

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

17002

Females

6445

F18-39

6445

23M→24M

23.0 - 24.0 mi

Top 63%
×6stories
+12ft-82ft

Overall

17966

Females

7013

F18-39

7013

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

20712

Females

8508

F18-39

8508

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

19138

Females

7693

F18-39

7693

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

19021

Females

7600

F18-39

7600

Passing Analysis

Category:
Athletes Passed
702
Passed By
4567
Net Change
-3868
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7205
5K → 10K164265-101#7205#7306
10K → 15K70337-267#7306#7573
15K → 20K94226-132#7573#7705
20K → Half595-90#7705#7795
Half → 25K63273-210#7795#8005
25K → 30K103456-353#8005#8358
30K → 20M55256-201#8358#8559
20M → 21M26366-340#8559#8899
21M → 35K37158-121#8899#9020
35K → 23M31553-522#9020#9542
23M → 24M17482-467#9542#10009
24M → 40K11555-545#10009#10554
40K → 25.2M10172-162#10554#10716
25.2M → Finish16373-357#10716#11073
TOTALS7024567-3868
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing