Boston Marathon logo
BOSTON MARATHON 2025

Jennette Glowski

Bib: 18944•F

MI

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 49%
Gender (Female)
#0 / 12228
Top 35%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:50
Rank: #13726
Start → 5K
23:50 | 7:40/mi
10K· 6.21 mi
46:52
Rank: #12519 (+1207)
5K → 10K
23:02 | 7:25/mi
15K· 9.32 mi
1:09:59
Rank: #12066 (+453)
10K → 15K
23:07 | 7:26/mi
20K· 12.43 mi
1:33:31
Rank: #11859 (+207)
15K → 20K
23:32 | 7:34/mi
Half· 13.11 mi
1:38:40
Rank: #11869 (-10)
20K → Half
5:09 | 7:33/mi
25K· 15.53 mi
1:58:08
Rank: #12227 (-358)
Half → 25K
19:28 | 8:02/mi
30K· 18.64 mi
2:26:20
Rank: #13483 (-1256)
25K → 30K
28:12 | 9:05/mi
20M
2:38:36
Rank: #13757 (-274)
30K → 20M
12:16 | 9:02/mi
21M
2:47:44
Rank: #13771 (-14)
20M → 21M
9:08 | 9:08/mi
35K· 21.75 mi
2:53:55
Rank: #13755 (+16)
21M → 35K
6:11 | 8:16/mi
23M
3:04:57
Rank: #13852 (-97)
35K → 23M
11:02 | 8:49/mi
24M
3:13:15
Rank: #13823 (+29)
23M → 24M
8:18 | 8:18/mi
40K· 24.85 mi
3:20:40
Rank: #13832 (-9)
24M → 40K
7:25 | 8:40/mi
25.2M
3:24:08
Rank: #13893 (-61)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
3:32:37
Rank: #13929 (-36)
25.2M → Finish
8:29 | 8:19/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:40
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:53:57
Pace8:42 /mi
📊Positive Split: 15.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:4623:507:4023:50
7:40
-
10K
6.21 mi11:37:4846:527:3323:02
7:25
-0:15
15K
9.32 mi12:00:551:09:597:3123:07
7:26
+0:01
20K
12.43 mi12:24:271:33:317:3223:32
7:34
+0:08
Half
13.11 mi12:29:361:38:407:325:09
7:33
-0:01
25K
15.53 mi12:49:041:58:087:3619:28
8:02
+0:29
30K
18.64 mi13:17:162:26:207:5128:12
9:05
+1:03
20M
20.00 mi13:29:322:38:367:5612:16
9:02
-0:03
21M
21.00 mi13:38:402:47:447:599:08
9:08
+0:06
35K
21.75 mi13:44:512:53:558:006:11
8:16
-0:52
23M
23.00 mi13:55:533:04:578:0211:02
8:49
+0:33
24M
24.00 mi14:04:113:13:158:038:18
8:18
-0:31
40K
24.85 mi14:11:363:20:408:047:25
8:40
+0:22
25.2M
25.20 mi14:15:043:24:088:063:28
10:03
+1:23
Finish
26.22 mi14:23:333:32:378:078:29
8:19
-1:44

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

7:25 /mi

Average Pace

8:07 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:40

46% of race

Time at Steady Pace

49:51

23% of race

Time at Slower Pace

1:04:06

30% of race

Average Pace: 8:07 /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 mi11:14:4623:507:4023:50
7:40
#13726
10K
6.21 mi11:37:4846:527:3323:02
7:25
#12519
15K
9.32 mi12:00:551:09:597:3123:07
7:26
#12066
20K
12.43 mi12:24:271:33:317:3223:32
7:34
#11859
Half
13.11 mi12:29:361:38:407:325:09
7:33
#11869
25K
15.53 mi12:49:041:58:087:3619:28
8:02
#12227
30K
18.64 mi13:17:162:26:207:5128:12
9:05
#13483
20M
20.00 mi13:29:322:38:367:5612:16
9:02
#13757
21M
21.00 mi13:38:402:47:447:599:08
9:08
#13771
35K
21.75 mi13:44:512:53:558:006:11
8:16
#13755
23M
23.00 mi13:55:533:04:578:0211:02
8:49
#13852
24M
24.00 mi14:04:113:13:158:038:18
8:18
#13823
40K
24.85 mi14:11:363:20:408:047:25
8:40
#13832
25.2M
25.20 mi14:15:043:24:088:063:28
10:03
#13893
Finish
26.22 mi14:23:333:32:378:078:29
8:19
#13929
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi137263726372611270(Top 40%)2519(Top 21%)2519(Top 46%)
10K6.21 mi3.10 mi12519+12073085+6413085+64111331(Top 40%)2482(Top 20%)2482(Top 45%)
15K9.32 mi3.11 mi12066+4532878+2072878+20711270(Top 40%)2519(Top 21%)2519(Top 46%)
20K12.43 mi3.11 mi11859+2072794+842794+8411409(Top 40%)2694(Top 22%)2694(Top 49%)
Half13.11 mi0.68 mi11869-102812-182812-1812232(Top 43%)3093(Top 25%)3093(Top 57%)
25K15.53 mi2.42 mi12227-3583037-2253037-22514138(Top 50%)4272(Top 35%)4272(Top 78%)
30K18.64 mi3.11 mi13483-12563808-7713808-77118070(Top 64%)6609(Top 54%)6609(Top 121%)
20M20.00 mi1.36 mi13757-2743995-1873995-18716938(Top 60%)6097(Top 50%)6097(Top 111%)
21M21.00 mi1.00 mi13771-144043-484043-4814276(Top 50%)4769(Top 39%)4769(Top 87%)
35K21.75 mi0.75 mi13755+164055-124055-1214062(Top 50%)4698(Top 38%)4698(Top 86%)
23M23.00 mi1.25 mi13852-974145-904145-9015189(Top 53%)5429(Top 44%)5429(Top 99%)
24M24.00 mi1.00 mi13823+294162-174162-1713282(Top 47%)4457(Top 36%)4457(Top 81%)
40K24.85 mi0.85 mi13832-94202-404202-4014482(Top 51%)5227(Top 43%)5227(Top 96%)
25.2M25.20 mi0.35 mi13893-614242-404242-4017271(Top 61%)6721(Top 55%)6721(Top 123%)
Finish26.22 mi1.02 mi13929-364281-394281-3915084(Top 53%)5521(Top 45%)5521(Top 101%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

11270

Females

2519

F18-39

2519

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

11331

Females

2482

F18-39

2482

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

11270

Females

2519

F18-39

2519

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

11409

Females

2694

F18-39

2694

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

12232

Females

3093

F18-39

3093

Half→25K

13.1 - 15.5 mi

Top 50%
×4stories
+66ft-88ft

Overall

14138

Females

4272

F18-39

4272

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

18070

Females

6609

F18-39

6609

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

16938

Females

6097

F18-39

6097

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

14276

Females

4769

F18-39

4769

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

14062

Females

4698

F18-39

4698

35K→23M

21.8 - 23.0 mi

Top 53%
×5stories
+23ft-63ft

Overall

15189

Females

5429

F18-39

5429

23M→24M

23.0 - 24.0 mi

Top 47%
×6stories
+12ft-82ft

Overall

13282

Females

4457

F18-39

4457

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

14482

Females

5227

F18-39

5227

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17271

Females

6721

F18-39

6721

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2stories
+22ft-21ft

Overall

15084

Females

5521

F18-39

5521

Passing Analysis

Category:
Athletes Passed
2734
Passed By
2937
Net Change
-203
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13726
5K → 10K122518+1207#13726#12519
10K → 15K49441+453#12519#12066
15K → 20K29386+207#12066#11859
20K → Half3343-10#11859#11869
Half → 25K76434-358#11869#12227
25K → 30K461302-1256#12227#13483
30K → 20M66340-274#13483#13757
20M → 21M103117-14#13757#13771
21M → 35K6145+16#13771#13755
35K → 23M82179-97#13755#13852
23M → 24M10071+29#13852#13823
24M → 40K7988-9#13823#13832
40K → 25.2M1576-61#13832#13893
25.2M → Finish6197-36#13893#13929
TOTALS27342937-203
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing