Boston Marathon logo
BOSTON MARATHON 2025

Daniel Jespersen

Bib: 3442•M

UT

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 34%
Gender (Male)
#0 / 16105
Top 47%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:56
Rank: #5800
Start → 5K
20:56 | 6:44/mi
10K· 6.21 mi
42:02
Rank: #5981 (-181)
5K → 10K
21:06 | 6:47/mi
15K· 9.32 mi
1:03:38
Rank: #6469 (-488)
10K → 15K
21:36 | 6:57/mi
20K· 12.43 mi
1:26:22
Rank: #7170 (-701)
15K → 20K
22:44 | 7:19/mi
Half· 13.11 mi
1:31:21
Rank: #7279 (-109)
20K → Half
4:59 | 7:18/mi
25K· 15.53 mi
1:49:45
Rank: #7696 (-417)
Half → 25K
18:24 | 7:35/mi
30K· 18.64 mi
2:15:13
Rank: #8455 (-759)
25K → 30K
25:28 | 8:12/mi
20M
2:26:43
Rank: #8830 (-375)
30K → 20M
11:30 | 8:28/mi
21M
2:35:40
Rank: #9097 (-267)
20M → 21M
8:57 | 8:57/mi
35K· 21.75 mi
2:41:33
Rank: #9150 (-53)
21M → 35K
5:53 | 7:52/mi
23M
2:52:11
Rank: #9376 (-226)
35K → 23M
10:38 | 8:30/mi
24M
3:00:15
Rank: #9455 (-79)
23M → 24M
8:04 | 8:04/mi
40K· 24.85 mi
3:07:37
Rank: #9636 (-181)
24M → 40K
7:22 | 8:37/mi
25.2M
3:10:41
Rank: #9659 (-23)
40K → 25.2M
3:04 | 8:54/mi
Finish· 26.22 mi
3:18:29
Rank: #9670 (-11)
25.2M → Finish
7:48 | 7:39/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
Time1:31:21
Pace6:58 /mi
2nd Half
Distance13.11 mi
Time1:47:08
Pace8:10 /mi
📊Positive Split: 17.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:5820:566:4420:56
6:44
-
10K
6.21 mi10:44:0442:026:4621:06
6:47
+0:03
15K
9.32 mi11:05:401:03:386:5021:36
6:57
+0:10
20K
12.43 mi11:28:241:26:226:5722:44
7:19
+0:22
Half
13.11 mi11:33:231:31:216:584:59
7:18
-0:01
25K
15.53 mi11:51:471:49:457:0418:24
7:35
+0:17
30K
18.64 mi12:17:152:15:137:1525:28
8:12
+0:37
20M
20.00 mi12:28:452:26:437:2011:30
8:28
+0:16
21M
21.00 mi12:37:422:35:407:258:57
8:57
+0:29
35K
21.75 mi12:43:352:41:337:265:53
7:52
-1:05
23M
23.00 mi12:54:132:52:117:2910:38
8:30
+0:38
24M
24.00 mi13:02:173:00:157:318:04
8:04
-0:26
40K
24.85 mi13:09:393:07:377:337:22
8:37
+0:33
25.2M
25.20 mi13:12:433:10:417:343:04
8:54
+0:17
Finish
26.22 mi13:20:313:18:297:357:48
7:39
-1:15

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

6:44 /mi

Average Pace

7:35 /mi

Slowest Pace

8:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:21

46% of race

Time at Steady Pace

1:05:37

33% of race

Time at Slower Pace

41:31

21% of race

Average Pace: 7:34 /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 mi10:22:5820:566:4420:56
6:44
#5800
10K
6.21 mi10:44:0442:026:4621:06
6:47
#5981
15K
9.32 mi11:05:401:03:386:5021:36
6:57
#6469
20K
12.43 mi11:28:241:26:226:5722:44
7:19
#7170
Half
13.11 mi11:33:231:31:216:584:59
7:18
#7279
25K
15.53 mi11:51:471:49:457:0418:24
7:35
#7696
30K
18.64 mi12:17:152:15:137:1525:28
8:12
#8455
20M
20.00 mi12:28:452:26:437:2011:30
8:28
#8830
21M
21.00 mi12:37:422:35:407:258:57
8:57
#9097
35K
21.75 mi12:43:352:41:337:265:53
7:52
#9150
23M
23.00 mi12:54:132:52:117:2910:38
8:30
#9376
24M
24.00 mi13:02:173:00:157:318:04
8:04
#9455
40K
24.85 mi13:09:393:07:377:337:22
8:37
#9636
25.2M
25.20 mi13:12:433:10:417:343:04
8:54
#9659
Finish
26.22 mi13:20:313:18:297:357:48
7:39
#9670
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5800535253527325(Top 26%)6496(Top 40%)6496(Top 115%)
10K6.21 mi3.10 mi5981-1815493-1415493-1416316(Top 22%)5739(Top 36%)5739(Top 102%)
15K9.32 mi3.11 mi6469-4885870-3775870-3777325(Top 26%)6496(Top 40%)6496(Top 115%)
20K12.43 mi3.11 mi7170-7016397-5276397-5279179(Top 32%)7551(Top 47%)7551(Top 134%)
Half13.11 mi0.68 mi7279-1096473-766473-769982(Top 35%)8004(Top 50%)8004(Top 142%)
25K15.53 mi2.42 mi7696-4176741-2686741-26810652(Top 38%)8214(Top 51%)8214(Top 146%)
30K18.64 mi3.11 mi8455-7597151-4107151-41012785(Top 45%)9041(Top 56%)9041(Top 160%)
20M20.00 mi1.36 mi8830-3757337-1867337-18613514(Top 48%)9216(Top 57%)9216(Top 163%)
21M21.00 mi1.00 mi9097-2677457-1207457-12013173(Top 46%)8929(Top 55%)8929(Top 158%)
35K21.75 mi0.75 mi9150-537465-87465-811241(Top 40%)7968(Top 49%)7968(Top 141%)
23M23.00 mi1.25 mi9376-2267548-837548-8313233(Top 47%)8791(Top 55%)8791(Top 156%)
24M24.00 mi1.00 mi9455-797556-87556-811668(Top 41%)7983(Top 50%)7983(Top 141%)
40K24.85 mi0.85 mi9636-1817614-587614-5814112(Top 50%)9039(Top 56%)9039(Top 160%)
25.2M25.20 mi0.35 mi9659-237611+37611+311123(Top 39%)7529(Top 47%)7529(Top 133%)
Finish26.22 mi1.02 mi9670-117570+417570+4110318(Top 36%)7148(Top 44%)7148(Top 127%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21stories
+97ft-345ft

Overall

7325

Males

6496

M18-39

6496

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

6316

Males

5739

M18-39

5739

10K→15K

6.2 - 9.3 mi

Top 26%
×3stories
+67ft-78ft

Overall

7325

Males

6496

M18-39

6496

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

9179

Males

7551

M18-39

7551

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

9982

Males

8004

M18-39

8004

Half→25K

13.1 - 15.5 mi

Top 38%
×4stories
+66ft-88ft

Overall

10652

Males

8214

M18-39

8214

25K→30K

15.5 - 18.6 mi

Top 45%
×9stories
+181ft-148ft

Overall

12785

Males

9041

M18-39

9041

30K→20M

18.6 - 20.0 mi

Top 48%
×5stories
+64ft-50ft

Overall

13514

Males

9216

M18-39

9216

20M→21M

20.0 - 21.0 mi

Top 46%
×8stories
+106ft-24ft

Overall

13173

Males

8929

M18-39

8929

21M→35K

21.0 - 21.8 mi

Top 40%
×7stories
+17ft-86ft

Overall

11241

Males

7968

M18-39

7968

35K→23M

21.8 - 23.0 mi

Top 47%
×5stories
+23ft-63ft

Overall

13233

Males

8791

M18-39

8791

23M→24M

23.0 - 24.0 mi

Top 41%
×6stories
+12ft-82ft

Overall

11668

Males

7983

M18-39

7983

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

14112

Males

9039

M18-39

9039

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

11123

Males

7529

M18-39

7529

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2stories
+22ft-21ft

Overall

10318

Males

7148

M18-39

7148

Passing Analysis

Category:
Athletes Passed
638
Passed By
4508
Net Change
-3870
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5800
5K → 10K112293-181#5800#5981
10K → 15K50538-488#5981#6469
15K → 20K22723-701#6469#7170
20K → Half1110-109#7170#7279
Half → 25K34451-417#7279#7696
25K → 30K53812-759#7696#8455
30K → 20M29404-375#8455#8830
20M → 21M41308-267#8830#9097
21M → 35K4497-53#9097#9150
35K → 23M59285-226#9150#9376
23M → 24M65144-79#9376#9455
24M → 40K33214-181#9455#9636
40K → 25.2M2851-23#9636#9659
25.2M → Finish6778-11#9659#9670
TOTALS6384508-3870
📊

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