Boston Marathon logo
BOSTON MARATHON 2025

Jenna Zellner

Bib: 28417•F

WI

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
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
27:51
Rank: #22281
Start → 5K
27:51 | 8:58/mi
10K· 6.21 mi
55:52
Rank: #22392 (-111)
5K → 10K
28:01 | 9:01/mi
15K· 9.32 mi
1:23:53
Rank: #22281 (+111)
10K → 15K
28:01 | 9:01/mi
20K· 12.43 mi
1:52:26
Rank: #22149 (+132)
15K → 20K
28:33 | 9:11/mi
Half· 13.11 mi
1:58:47
Rank: #22187 (-38)
20K → Half
6:21 | 9:18/mi
25K· 15.53 mi
2:22:01
Rank: #22208 (-21)
Half → 25K
23:14 | 9:35/mi
30K· 18.64 mi
2:53:19
Rank: #22150 (+58)
25K → 30K
31:18 | 10:04/mi
20M
3:07:29
Rank: #22165 (-15)
30K → 20M
14:10 | 10:25/mi
21M
3:18:28
Rank: #22089 (+76)
20M → 21M
10:59 | 10:59/mi
35K· 21.75 mi
3:26:07
Rank: #22098 (-9)
21M → 35K
7:39 | 10:14/mi
23M
3:39:48
Rank: #22164 (-66)
35K → 23M
13:41 | 10:56/mi
24M
3:51:13
Rank: #22292 (-128)
23M → 24M
11:25 | 11:25/mi
40K· 24.85 mi
4:04:36
Rank: #22798 (-506)
24M → 40K
13:23 | 15:39/mi
25.2M
4:09:37
Rank: #22931 (-133)
40K → 25.2M
5:01 | 14:33/mi
Finish· 26.22 mi
4:22:01
Rank: #23169 (-238)
25.2M → Finish
12:24 | 12:10/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
Time1:58:47
Pace9:04 /mi
2nd Half
Distance13.11 mi
Time2:23:14
Pace10:56 /mi
📊Positive Split: 20.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:3227:518:5827:51
8:58
-
10K
6.21 mi12:12:3355:528:5928:01
9:01
+0:03
15K
9.32 mi12:40:341:23:539:0028:01
9:01
0:00
20K
12.43 mi13:09:071:52:269:0328:33
9:11
+0:10
Half
13.11 mi13:15:281:58:479:046:21
9:18
+0:07
25K
15.53 mi13:38:422:22:019:0923:14
9:35
+0:17
30K
18.64 mi14:10:002:53:199:1831:18
10:04
+0:29
20M
20.00 mi14:24:103:07:299:2214:10
10:25
+0:21
21M
21.00 mi14:35:093:18:289:2710:59
10:59
+0:34
35K
21.75 mi14:42:483:26:079:297:39
10:14
-0:45
23M
23.00 mi14:56:293:39:489:3313:41
10:56
+0:42
24M
24.00 mi15:07:543:51:139:3811:25
11:25
+0:29
40K
24.85 mi15:21:174:04:369:5013:23
15:39
+4:14
25.2M
25.20 mi15:26:184:09:379:545:01
14:33
-1:06
Finish
26.22 mi15:38:424:22:0110:0012:24
12:10
-2:23

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

8:58 /mi

Average Pace

10:00 /mi

Slowest Pace

15:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:26

43% of race

Time at Steady Pace

1:47:22

41% of race

Time at Slower Pace

42:13

16% of race

Average Pace: 10:00 /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 mi11:44:3227:518:5827:51
8:58
#22281
10K
6.21 mi12:12:3355:528:5928:01
9:01
#22392
15K
9.32 mi12:40:341:23:539:0028:01
9:01
#22281
20K
12.43 mi13:09:071:52:269:0328:33
9:11
#22149
Half
13.11 mi13:15:281:58:479:046:21
9:18
#22187
25K
15.53 mi13:38:422:22:019:0923:14
9:35
#22208
30K
18.64 mi14:10:002:53:199:1831:18
10:04
#22150
20M
20.00 mi14:24:103:07:299:2214:10
10:25
#22165
21M
21.00 mi14:35:093:18:289:2710:59
10:59
#22089
35K
21.75 mi14:42:483:26:079:297:39
10:14
#22098
23M
23.00 mi14:56:293:39:489:3313:41
10:56
#22164
24M
24.00 mi15:07:543:51:139:3811:25
11:25
#22292
40K
24.85 mi15:21:174:04:369:5013:23
15:39
#22798
25.2M
25.20 mi15:26:184:09:379:545:01
14:33
#22931
Finish
26.22 mi15:38:424:22:0110:0012:24
12:10
#23169
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi222818787878722126(Top 78%)8624(Top 71%)8624(Top 158%)
10K6.21 mi3.10 mi22392-1118832-458832-4522471(Top 79%)8849(Top 72%)8849(Top 162%)
15K9.32 mi3.11 mi22281+1118745+878745+8722126(Top 78%)8624(Top 71%)8624(Top 158%)
20K12.43 mi3.11 mi22149+1328680+658680+6521865(Top 77%)8519(Top 70%)8519(Top 156%)
Half13.11 mi0.68 mi22187-388701-218701-2123019(Top 81%)9163(Top 75%)9163(Top 168%)
25K15.53 mi2.42 mi22208-218714-138714-1322140(Top 78%)8732(Top 71%)8732(Top 160%)
30K18.64 mi3.11 mi22150+588707+78707+721821(Top 77%)8685(Top 71%)8685(Top 159%)
20M20.00 mi1.36 mi22165-158732-258732-2522238(Top 78%)9027(Top 74%)9027(Top 165%)
21M21.00 mi1.00 mi22089+768712+208712+2021374(Top 75%)8640(Top 71%)8640(Top 158%)
35K21.75 mi0.75 mi22098-98731-198731-1922517(Top 79%)9296(Top 76%)9296(Top 170%)
23M23.00 mi1.25 mi22164-668813-828813-8223064(Top 81%)9638(Top 79%)9638(Top 176%)
24M24.00 mi1.00 mi22292-1288903-908903-9024757(Top 87%)10518(Top 86%)10518(Top 192%)
40K24.85 mi0.85 mi22798-5069195-2929195-29228004(Top 99%)12097(Top 99%)12097(Top 221%)
25.2M25.20 mi0.35 mi22931-1339279-849279-8426797(Top 94%)11562(Top 95%)11562(Top 211%)
Finish26.22 mi1.02 mi23169-2389418-1399418-13926981(Top 95%)11618(Top 95%)11618(Top 212%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21stories
+97ft-345ft

Overall

22126

Females

8624

F18-39

8624

5K→10K

3.1 - 6.2 mi

Top 79%
×5stories
+79ft-138ft

Overall

22471

Females

8849

F18-39

8849

10K→15K

6.2 - 9.3 mi

Top 78%
×3stories
+67ft-78ft

Overall

22126

Females

8624

F18-39

8624

15K→20K

9.3 - 12.4 mi

Top 77%
×5stories
+106ft-86ft

Overall

21865

Females

8519

F18-39

8519

20K→Half

12.4 - 13.1 mi

Top 81%
×2stories
+19ft-37ft

Overall

23019

Females

9163

F18-39

9163

Half→25K

13.1 - 15.5 mi

Top 78%
×4stories
+66ft-88ft

Overall

22140

Females

8732

F18-39

8732

25K→30K

15.5 - 18.6 mi

Top 77%
×9stories
+181ft-148ft

Overall

21821

Females

8685

F18-39

8685

30K→20M

18.6 - 20.0 mi

Top 78%
×5stories
+64ft-50ft

Overall

22238

Females

9027

F18-39

9027

20M→21M

20.0 - 21.0 mi

Top 75%
×8stories
+106ft-24ft

Overall

21374

Females

8640

F18-39

8640

21M→35K

21.0 - 21.8 mi

Top 79%
×7stories
+17ft-86ft

Overall

22517

Females

9296

F18-39

9296

35K→23M

21.8 - 23.0 mi

Top 81%
×5stories
+23ft-63ft

Overall

23064

Females

9638

F18-39

9638

23M→24M

23.0 - 24.0 mi

Top 87%
×6stories
+12ft-82ft

Overall

24757

Females

10518

F18-39

10518

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

28004

Females

12097

F18-39

12097

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

26797

Females

11562

F18-39

11562

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2stories
+22ft-21ft

Overall

26981

Females

11618

F18-39

11618

Passing Analysis

Category:
Athletes Passed
1391
Passed By
2279
Net Change
-888
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22281
5K → 10K212323-111#22281#22392
10K → 15K237126+111#22392#22281
15K → 20K238106+132#22281#22149
20K → Half2563-38#22149#22187
Half → 25K133154-21#22187#22208
25K → 30K210152+58#22208#22150
30K → 20M7893-15#22150#22165
20M → 21M11539+76#22165#22089
21M → 35K4352-9#22089#22098
35K → 23M63129-66#22098#22164
23M → 24M26154-128#22164#22292
24M → 40K1507-506#22292#22798
40K → 25.2M0133-133#22798#22931
25.2M → Finish10248-238#22931#23169
TOTALS13912279-888
📊

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