Boston Marathon logo
BOSTON MARATHON 2025

Daniel Chapman

Bib: 29004•M

FL

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
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
28:21
Rank: #22930
Start → 5K
28:21 | 9:07/mi
10K· 6.21 mi
55:16
Rank: #21922 (+1008)
5K → 10K
26:55 | 8:40/mi
15K· 9.32 mi
1:22:21
Rank: #21460 (+462)
10K → 15K
27:05 | 8:43/mi
20K· 12.43 mi
1:49:13
Rank: #20850 (+610)
15K → 20K
26:52 | 8:39/mi
Half· 13.11 mi
1:54:59
Rank: #20780 (+70)
20K → Half
5:46 | 8:27/mi
25K· 15.53 mi
2:16:02
Rank: #20392 (+388)
Half → 25K
21:03 | 8:41/mi
30K· 18.64 mi
2:43:50
Rank: #19808 (+584)
25K → 30K
27:48 | 8:57/mi
20M
2:56:07
Rank: #19587 (+221)
30K → 20M
12:17 | 9:02/mi
21M
3:05:39
Rank: #19384 (+203)
20M → 21M
9:32 | 9:32/mi
35K· 21.75 mi
3:12:51
Rank: #19456 (-72)
21M → 35K
7:12 | 9:37/mi
23M
3:23:54
Rank: #19216 (+240)
35K → 23M
11:03 | 8:50/mi
24M
3:32:32
Rank: #19068 (+148)
23M → 24M
8:38 | 8:38/mi
40K· 24.85 mi
3:40:14
Rank: #18940 (+128)
24M → 40K
7:42 | 9:00/mi
25.2M
3:44:04
Rank: #18990 (-50)
40K → 25.2M
3:50 | 11:07/mi
Finish· 26.22 mi
3:52:33
Rank: #18858 (+132)
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
Time1:54:59
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time1:57:34
Pace8:58 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:4828:219:0728:21
9:07
-
10K
6.21 mi12:13:4355:168:5426:55
8:40
-0:27
15K
9.32 mi12:40:481:22:218:5027:05
8:43
+0:03
20K
12.43 mi13:07:401:49:138:4726:52
8:39
-0:04
Half
13.11 mi13:13:261:54:598:465:46
8:27
-0:12
25K
15.53 mi13:34:292:16:028:4521:03
8:41
+0:14
30K
18.64 mi14:02:172:43:508:4727:48
8:57
+0:16
20M
20.00 mi14:14:342:56:078:4812:17
9:02
+0:05
21M
21.00 mi14:24:063:05:398:509:32
9:32
+0:30
35K
21.75 mi14:31:183:12:518:527:12
9:37
+0:05
23M
23.00 mi14:42:213:23:548:5211:03
8:50
-0:47
24M
24.00 mi14:50:593:32:328:518:38
8:38
-0:12
40K
24.85 mi14:58:413:40:148:527:42
9:00
+0:22
25.2M
25.20 mi15:02:313:44:048:533:50
11:07
+2:07
Finish
26.22 mi15:11:003:52:338:538:29
8:19
-2:48

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

8:19 /mi

Average Pace

8:53 /mi

Slowest Pace

11:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

14:15

6% of race

Time at Steady Pace

3:17:44

85% of race

Time at Slower Pace

20:34

9% of race

Average Pace: 8:52 /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 mi11:46:4828:219:0728:21
9:07
#22930
10K
6.21 mi12:13:4355:168:5426:55
8:40
#21922
15K
9.32 mi12:40:481:22:218:5027:05
8:43
#21460
20K
12.43 mi13:07:401:49:138:4726:52
8:39
#20850
Half
13.11 mi13:13:261:54:598:465:46
8:27
#20780
25K
15.53 mi13:34:292:16:028:4521:03
8:41
#20392
30K
18.64 mi14:02:172:43:508:4727:48
8:57
#19808
20M
20.00 mi14:14:342:56:078:4812:17
9:02
#19587
21M
21.00 mi14:24:063:05:398:509:32
9:32
#19384
35K
21.75 mi14:31:183:12:518:527:12
9:37
#19456
23M
23.00 mi14:42:213:23:548:5211:03
8:50
#19216
24M
24.00 mi14:50:593:32:328:518:38
8:38
#19068
40K
24.85 mi14:58:413:40:148:527:42
9:00
#18940
25.2M
25.20 mi15:02:313:44:048:533:50
11:07
#18990
Finish
26.22 mi15:11:003:52:338:538:29
8:19
#18858
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22930137351373520577(Top 72%)12764(Top 79%)12764(Top 226%)
10K6.21 mi3.10 mi21922+100813298+43713298+43720676(Top 73%)12772(Top 79%)12772(Top 226%)
15K9.32 mi3.11 mi21460+46213119+17913119+17920577(Top 72%)12764(Top 79%)12764(Top 226%)
20K12.43 mi3.11 mi20850+61012839+28012839+28019121(Top 67%)12086(Top 75%)12086(Top 214%)
Half13.11 mi0.68 mi20780+7012805+3412805+3418866(Top 66%)11991(Top 74%)11991(Top 213%)
25K15.53 mi2.42 mi20392+38812624+18112624+18118272(Top 64%)11650(Top 72%)11650(Top 206%)
30K18.64 mi3.11 mi19808+58412344+28012344+28017404(Top 61%)11108(Top 69%)11108(Top 197%)
20M20.00 mi1.36 mi19587+22112221+12312221+12317004(Top 60%)10830(Top 67%)10830(Top 192%)
21M21.00 mi1.00 mi19384+20312104+11712104+11716221(Top 57%)10356(Top 64%)10356(Top 184%)
35K21.75 mi0.75 mi19456-7212125-2112125-2120745(Top 73%)12321(Top 77%)12321(Top 218%)
23M23.00 mi1.25 mi19216+24011990+13511990+13515246(Top 54%)9749(Top 61%)9749(Top 173%)
24M24.00 mi1.00 mi19068+14811911+7911911+7915352(Top 54%)9747(Top 61%)9747(Top 173%)
40K24.85 mi0.85 mi18940+12811818+9311818+9316321(Top 57%)10070(Top 63%)10070(Top 178%)
25.2M25.20 mi0.35 mi18990-5011832-1411832-1420961(Top 74%)12269(Top 76%)12269(Top 217%)
Finish26.22 mi1.02 mi18858+13211756+7611756+7615069(Top 53%)9519(Top 59%)9519(Top 169%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

20577

Males

12764

M18-39

12764

5K→10K

3.1 - 6.2 mi

Top 73%
×5stories
+79ft-138ft

Overall

20676

Males

12772

M18-39

12772

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

20577

Males

12764

M18-39

12764

15K→20K

9.3 - 12.4 mi

Top 67%
×5stories
+106ft-86ft

Overall

19121

Males

12086

M18-39

12086

20K→Half

12.4 - 13.1 mi

Top 66%
×2stories
+19ft-37ft

Overall

18866

Males

11991

M18-39

11991

Half→25K

13.1 - 15.5 mi

Top 64%
×4stories
+66ft-88ft

Overall

18272

Males

11650

M18-39

11650

25K→30K

15.5 - 18.6 mi

Top 61%
×9stories
+181ft-148ft

Overall

17404

Males

11108

M18-39

11108

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

17004

Males

10830

M18-39

10830

20M→21M

20.0 - 21.0 mi

Top 57%
×8stories
+106ft-24ft

Overall

16221

Males

10356

M18-39

10356

21M→35K

21.0 - 21.8 mi

Top 73%
×7stories
+17ft-86ft

Overall

20745

Males

12321

M18-39

12321

35K→23M

21.8 - 23.0 mi

Top 54%
×5stories
+23ft-63ft

Overall

15246

Males

9749

M18-39

9749

23M→24M

23.0 - 24.0 mi

Top 54%
×6stories
+12ft-82ft

Overall

15352

Males

9747

M18-39

9747

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

16321

Males

10070

M18-39

10070

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

20961

Males

12269

M18-39

12269

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2stories
+22ft-21ft

Overall

15069

Males

9519

M18-39

9519

Passing Analysis

Category:
Athletes Passed
4402
Passed By
330
Net Change
+4072
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22930
5K → 10K102517+1008#22930#21922
10K → 15K50442+462#21922#21460
15K → 20K62010+610#21460#20850
20K → Half722+70#20850#20780
Half → 25K39911+388#20780#20392
25K → 30K60117+584#20392#19808
30K → 20M23514+221#19808#19587
20M → 21M21411+203#19587#19384
21M → 35K33105-72#19384#19456
35K → 23M2444+240#19456#19216
23M → 24M1568+148#19216#19068
24M → 40K13911+128#19068#18940
40K → 25.2M1868-50#18940#18990
25.2M → Finish14210+132#18990#18858
TOTALS4402330+4072
📊

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